Search: 1000 results found for "aprotinin"

Description:

Myelin Basic Protein Human

Maltose-binding periplasmic protein, MBP, MMBP, Maltodextrin-binding protein, malE, b4034, JW3994.

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PRO-2798

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Description

MBP Human produced in Human brain is checked using poly and monoclonal antibodies against MBP.

Source

Human brain.

Formulation

MBP was lyophilized containing no additives.

Purity

Greater than 95.0% as determined by SDS-PAGE.

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Synonyms
Maltose-binding periplasmic protein, MBP, MMBP, Maltodextrin-binding protein, malE, b4034, JW3994.
Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
Stability
Lyophilized MBP although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution Myelin Basic Protein should be stored at 4°C between 2-7 days and for future use below -18°C. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA). Please prevent freeze-thaw cycles.
Solubility
It is recommended to reconstitute the lyophilized MBP in sterile 18MΩ-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.
Background
Myelin Basic Protein (MBP) stands as a cornerstone in the intricate architecture of the nervous system. As a vital component of the myelin sheath, MBP plays a pivotal role in ensuring the integrity and rapid transmission of nerve impulses. Over the years, scientific inquiry into MBP has revealed its multifaceted functions, not only as a structural element but also as a regulatory molecule involved in various cellular processes. This research seeks to unravel the complexities of MBP, exploring its structural characteristics, physiological significance, and its involvement in neurological disorders.
Structural Marvel of MBP:
MBP, an intrinsically disordered protein, boasts a unique structure allowing it to interact with lipid membranes, especially those found in the myelin sheath. Its high arginine and lysine content gives it a positive charge, enabling strong electrostatic interactions with the negatively charged lipids in myelin. This structural adaptation is crucial for the compact wrapping of myelin around axons, facilitating efficient electrical signal conduction.
Physiological Significance in Myelination:
In the central nervous system (CNS), oligodendrocytes produce myelin, a lipid-rich substance that insulates axons. MBP, as a major constituent of myelin, plays an indispensable role in this process. It stabilizes the myelin sheath’s structure, ensuring its tight adherence to the axon and promoting the fast, saltatory conduction of nerve impulses. Without functional MBP, myelin integrity is compromised, leading to reduced nerve conduction velocity and impaired neural communication.
Beyond Structural Functions:
Recent studies have revealed that MBP is not merely a structural protein but also possesses regulatory functions. It participates in signaling pathways crucial for oligodendrocyte development and myelination. Moreover, MBP’s interaction with cytoskeletal elements suggests its involvement in cellular processes such as axon guidance and neuronal plasticity. Understanding these regulatory roles provides insights into the broader impact of MBP on neural development and function.
Implications in Neurological Disorders:
Alterations in MBP have been linked to various neurological disorders, including multiple sclerosis (MS). In MS, the immune system erroneously targets MBP, leading to demyelination and subsequent neurological impairments. Research into MBP-related pathologies not only aids in understanding disease mechanisms but also offers potential therapeutic avenues. Targeting MBP-specific immune responses is a focus of research for developing MS treatments.
Conclusion:
MBP, as the guardian of neural transmission, stands as a testament to the marvels of biological architecture. Its intricate structure and multifaceted functions make it indispensable for the proper functioning of the nervous system. Beyond its role as a structural protein, MBP’s involvement in cellular signalling adds layers to its significance. In the realm of neurological disorders, MBP’s complexities provide both challenges and opportunities, guiding scientists toward innovative therapies. This research delves into the world of MBP, appreciating its contributions to neuroscience while aiming to decipher the mysteries that lie within its molecular intricacies.

ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

Description:

Complement C8 Human

Product # :

PRO-2695

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Description

Human Complement C8 produced in Human plasma is glycosylated polypeptide chain conteining 3 chains and having a total molecular mass of 151kDa.

Source

Human Plasma.

Formulation

C8 protein solution contains PBS pH 7.2.

Purity

Greater than 95% as determined by SDS-PAGE.

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Introduction
Native human C8 is a glycosylated protein consist of 3 polypeptide chains: The alpha chain and the gamma chain are disulfide linkedwhereas, The beta chain is non-covalently bound to the a-g complex. C8 is necessary for formation of the membrane attack complex and is activated by binding on the cell membrane newly-formed C5b,C6,C7 complexes. Each pathway of complement activation generates proteolytic enzyme complexes which bind the target surface. These enzymes cleave a peptide bond in the larger alpha chain of C5 releasing C5a and activating C5b. Although C5b is unstable it remains bound to the activating complex for a few minutes during which it binds a single C6 from the surrounding fluid or it decays and is no longer capable of forming MAC.The C5b,6 complex may also remain connected to the C3/C5 convertase where the binding of a single C7 exposes a membrane-binding region and C5b,6,7 can enter into the bilipid layer of the target cell. Each C5b-7 complex can bind 1 molecule of C8 causing the complex to enter more firmly into the membrane.
Physical Appearance
Sterile filtered solution.
Stability
C8 Human is stable at 4°C if entire vial will be used within 2-4 weeks.Store, frozen below -20°C for longer periods of time.For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Avoid multiple freeze-thaw cycles.
Human Virus Test
Plasma from each donor has been tested and found negative for antibody to HIV-1, HIV-2, HCV and HBSAG.

ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

Description:

Brain-Derived Neurotrophic Factor Human Recombinant

Brain-Derived Neurotrophic Factor, BDNF, MGC34632.

Product # :

CYT-207

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Description

BDNF Human Recombinant produced in E.Coli is a homodimer, non-glycosylated, polypeptide chain containing 2 x 119 amino acids (and an N-terminal Met) and having a total molecular mass of 28kDa. BDNF Human Recombinant is purified by proprietary chromatographic techniques.

Source

Escherichia Coli.

Formulation

The protein was lyophilized with 20mM PB and 400mM NaCl, pH 7.2.

Purity

BDNF is greater than 950% as determined SDS-PAGE.

Biological Activity

The activity was determined using Immobilized Human TrkB-His tag protein 2ug/ml (100 μl/well) for its binding to NHS-Biotin BDNF. The ED50 of was found to be ≤20ng/mL

Activity

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Introduction
BDNF promotes the survival of neuronal populations that are all located either in the central nervous system or directly connected to it. BDNF is a major regulator of synaptic transmission and plasticity at adult synapses in many regions of the cns. The versatility of BDNF is emphasized by its contribution to a range of adaptive neuronal responses including long-term potentiation (ltp), long-term depression (ltd), certain forms of short-term synaptic plasticity, as well as homeostatic regulation of intrinsic neuronal excitability.
Synonyms
Brain-Derived Neurotrophic Factor, BDNF, MGC34632.
Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
Stability
Lyophilized BDNF although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution BDNF should be stored at 4°C between 2-7 days and for future use below -18°C.For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Please prevent freeze-thaw cycles.
Solubility
It is recommended to reconstitute the lyophilized BDNF in sterile 18M-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.
Amino Acid Sequence
HSDPARRGE LSVCDSISEW VTAADKKTAV DMSGGTVTVL EKVPVSKGQL KQYFYETKCN PMGYTKEGCR GIDKRHWNSQ CRTTQSYVRA LTMDSKKRIG WRFIRIDTSC VCTLTIKRGR.
Background
Final Thoughts
Although more research is needed on the safety and effectiveness of BDNF human recombinant, trials suggest that this laboratory-produced protein may be effective in managing and treating several neurological and psychiatric disorders. It's important for experts to stay up to date on the latest developments and research to learn more about potential risks and benefits.
What is the molecular weight/Mw of BDNF Protein?
BDNF Protein has a total Mw of 27kDa.

What is the source or expression system of BDNF Protein?
Escherichia Coli.

What is the Purity of BDNF Protein?
BDNF Protein is >97% pure as determined by SDS-PAGE.

What is the Biological Activity of BDNF Protein?
The ED50, as determined by the dose-dependent induction of C6 cells proliferation, is 1.3-2µg/ml.

What is the amino acid sequence of BDNF Protein?
MHSDPARRGE LSVCDSISEW VTAADKKTAV DMSGGTVTVL EKVPVSKGQL KQYFYETKCN PMGYTKEGCR GIDKRHWNSQ CRTTQSYVRA LTMDSKKRIG WRFIRIDTSC VCTLTIKRGR.

What applications can BDNF Protein be used in?
BDNF Protein can probably be used in western blot, ELISA and Lateral Flow.

What is the endotoxin level for BDNF Protein?
The endotoxin level is minimal, BDNF Protein was purified using conventional chromatography techniques.
Protein content
BDNF quantitation was carried out by two independent methods:1. UV spectroscopy at 280 nm using the absorbency value of 1.6 as the extinction coefficient for a 0.1% (1mg/ml) solution. This value is calculated by the PC GENE computer analysis program of protein sequences (IntelliGenetics). 2. Analysis by RP-HPLC, using a standard solution of Brain-derived Neurotrophic Factor as a Reference Standard.

ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

Description:

Coagulation Factor III Active Human Recombinant

Tissue factor, TF, Coagulation factor III, CD142.

Product # :

PRO-2845

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Description

Recombinant Human Tissue Factor Active is a glycosylated, polypeptide chain containing 225 amino acids and having a total molecular mass of 45.0kDa. Coagulation Factor III is fused at C-terminus & is purified by proprietary chromatographic techniques.

Source

CHO cells.

Formulation

Lyophilized from a 0.2μm filtered solution in 20mM Tris and 150mM NaCl, pH 8.0.

Purity

Greater than 98.0% as determined by Analysis by SDS-PAGE.

Biological Activity

The ED50 was determined by its ability to activate fluorogenic peptide substrate Boc-VPR-AMC cleavage, when bound in 1:1 complex with Coagulation Factor VII.

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Synonyms
Tissue factor, TF, Coagulation factor III, CD142.
Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
Stability
Lyophilized Coagulation Factor III although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution Tissue Factor should be stored at 4°C between 2-7 days and for future use below -18°C.
Please prevent freeze-thaw cycles.
Solubility
It is recommended to reconstitute the lyophilized Coagulation Factor III in sterile 18MΩ-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.
Amino Acid Sequence
SGTTNTVAAY NLTWKSTNFK TILEWEPKPV NQVYTVQIST KSGDWKSKCF YTTDTECDLT DEIVKDVKQT YLARVFSYPA GNVESTGSAG EPLYENSPEF TPYLETNLGQ PTIQSFEQVG TKVNVTVEDE RTLVRRNNTF LSLRDVFGKD LIYTLYYWKS SSSGKKTAKT NTNEFLIDVD KGENYCFSVQ AVIPSRTVNR KSTDSPVECM GQEKGEFREH HHHHH.
Background
Tissue Factor is the main initiator of the extrinsic blood coagulation pathway. after vascular injury, Tissue Factor binds circulating Factor VII/VIIa, forming the TF–FVIIa complex, which activates Factors IX and X, leading to thrombin generation and fibrin clot formation. Tissue Factor also participates in cell signalling influencing inflammation, angiogenesis, wound healing, and tumor progression.

What is the molecular weight / Mw of Tissue Factor Protein?
Tissue Factor Protein has a total Mw of 45kDa.

What is the source or expression system of Tissue Factor Protein?
CHO Cells

What is the Purity of Tissue Factor Protein?
Tissue Factor Protein is >98% pure as determined by SDS-PAGE.

What is the Biological Activity of Tissue Factor Protein?
The enzymatic activity was determined by its ability to activate fluorogenic peptide substrate Boc-VPR-AMC cleavage, when bound in 1:1 complex with Coagulation Factor VII.

What is the amino acid sequence of Tissue Factor Protein?
SGTTNTVAAY NLTWKSTNFK TILEWEPKPV NQVYTVQIST KSGDWKSKCF YTTDTECDLT DEIVKDVKQT YLARVFSYPA GNVESTGSAG EPLYENSPEF TPYLETNLGQ PTIQSFEQVG TKVNVTVEDE RTLVRRNNTF LSLRDVFGKD LIYTLYYWKS SSSGKKTAKT NTNEFLIDVD KGENYCFSVQ AVIPSRTVNR KSTDSPVECM GQEKGEFREH HHHHH

What applications can Tissue Factor Protein be used in?
Tissue Factor Protein can probably be used in western blot, ELISA and Lateral Flow.

What is the endotoxin level for Tissue Factor Protein?
The endotoxin level is minimal, Tissue Factor Protein was purified using conventional chromatography techniques.

ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

Description:

Macrophage Inflammatory protein-4 (CCL18) Human Recombinant, His-Tag

Small inducible cytokine A18, CCL18, Macrophage inflammatory protein 4, MIP-4, Pulmonary and activation-regulated chemokine, CC chemokine PARC, Alternative macrophage activation-associated CC chemokine 1, AMAC-1, Dendritic cell chemokine 1, DC-CK1, chemokine (C-C motif) ligand 18, CKb7, PARC, AMAC1, DCCK1, SCYA18.

Product # :

CHM-339

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Description

MIP-4 Human Recombinant fused with a 25 amino acid His tag at N-terminus produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 93 amino acids (22-89 a.a.) and having a molecular mass of 10.4kDa. The MIP-4 is purified by proprietary chromatographic techniques.

Source

Escherichia Coli.

Formulation

The MIP-4 solution (0.25 mg/ml) contains 10mM Sodium Citrate pH3.5 and 10% Glycerol.

Purity

Greater than 95.0% as determined by SDS-PAGE.

SDS-PAGE

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Introduction
Chemokine (C-C motif) ligand 18 (CCL18) is a small cytokine belonging to the CC chemokine family that was previously called PARC (pulmonary and activation-regulated chemokine). CCL18 is approximately 60% identical in amino acid sequence to CCL3. It is expressed at high levels in lung and at lower levels in certain lymphoid tissues, such as the lymph nodes, and is chemotactic for activated T cells and non activated lymphocytes. The gene for human CCL18 contains three exons and is located on chromosome 17.
Synonyms
Small inducible cytokine A18, CCL18, Macrophage inflammatory protein 4, MIP-4, Pulmonary and activation-regulated chemokine, CC chemokine PARC, Alternative macrophage activation-associated CC chemokine 1, AMAC-1, Dendritic cell chemokine 1, DC-CK1, chemokine (C-C motif) ligand 18, CKb7, PARC, AMAC1, DCCK1, SCYA18.
Physical Appearance
Sterile Filtered colorless solution.
Stability
Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Avoid multiple freeze-thaw cycles.
Amino Acid Sequence
MGSSHHHHHH SSGLVPRGSH MGSHMQVGTN KELCCLVYTS WQIPQKFIVD YSETSPQCPK PGVILLTKRG RQICADPNKK WVQKYISDLK LNA.
Background
What is the molecular weight/Mw of CCL18 HUMAN, HIS Protein?
CCL18 HUMAN, HIS Protein has a total Mw of 10.4kDa.

What is the source or expression system of CCL18 HUMAN, HIS Protein?
Escherichia Coli.

What is the Purity of CCL18 HUMAN, HIS Protein?
CCL18 HUMAN, HIS Protein is > 95% pure as determined by SDS-PAGE.

What is the Biological Activity of CCL18 HUMAN, HIS Protein?
The biological functionality of CCL18 HUMAN, HIS Protein will be determined in the future.

What is the amino acid sequence of CCL18 HUMAN, HIS Protein?
MGSSHHHHHH SSGLVPRGSH MGSHMQVGTN KELCCLVYTS WQIPQKFIVD YSETSPQCPK PGVILLTKRG RQICADPNKK WVQKYISDLK LNA.

What applications can CCL18 HUMAN, HIS Protein be used in?
CCL18 HUMAN, HIS Protein can probably be used in western blot, ELISA and Lateral Flow.

What is the endotoxin level for CCL18 HUMAN, HIS Protein?
The endotoxin level is minimal, CCL18 HUMAN, HIS Protein was purified using conventional chromatography techniques.
Who supplies recombinant CCL18 HUMAN, HIS that is in stock and available to order?
ProSpec has the protein in stock and available for immediate delivery.

Where can I order bulk mg quantities of CCL18 HUMAN, HIS?
ProSpec supplies bulk mg quantities at affordable prices that meets research and academic budgets.

ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

Description:

B-cell Activating Factor Receptor Human Recombinant

TNFRSF13C, CD268, BAFF-R, MGC138235, B cell-activating factor receptor.

Product # :

CYT-429

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Description

B Lymphocyte Stimulator Receptor Human Recombinant extracellular produced in E.Coli is a single, non-glycosylated polypeptide chain containing 76 amino acids and having a molecular mass of 7.7 kDa.The BAFF-R is purified by proprietary chromatographic techniques.

Source

Escherichia Coli.

Formulation

Lyophilized from a 0.2μm filtered concentrated (1.0mg/ml) solution in 20mM PB, pH 8.0, 500mM NaCl.

Purity

Greater than 95.0% as determined by:
(a) Analysis by RP-HPLC.
(b) Analysis by SDS-PAGE.

Biological Activity

Determined by its ability to block BAFF induced mouse splenocyte survival. The expected ED₅₀ for this effect is 1.0-5.0 µg/ml in the presence of 1.0µg/ml of human soluble BAFF.

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Introduction
B cell-activating factor (BAFF) enhances B-cell survival in vitro and is a regulator of the peripheral B-cell population. Overexpression of Baff in mice results in mature B-cell hyperplasia and symptoms of systemic lupus erythematosus (SLE). Also, some SLE patients have increased levels of BAFF in serum. Therefore, it has been proposed that abnormally high levels of BAFF may contribute to the pathogenesis of autoimmune diseases by enhancing the survival of autoreactive B cells. The protein encoded by this gene is a receptor for BAFF and is a type III transmembrane protein containing a single extracellular cysteine-rich domain. It is thought that this receptor is the principal receptor required for BAFF-mediated mature B-cell survival.
Synonyms
TNFRSF13C, CD268, BAFF-R, MGC138235, B cell-activating factor receptor.
Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
Stability
Lyophilized BAFF-R although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution B Lymphocyte Stimulator Receptor should be stored at 4°C between 2-7 days and for future use below -18°C.Please prevent freeze-thaw cycles.
Solubility
It is recommended to reconstitute the lyophilized B Lymphocyte Stimulator Receptor Recombinant in sterile 18MΩ-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.
Amino Acid Sequence
MRRGPRSLRGRDAPAPTPCVPAECFDLLVRHCVACGLLRTPRPKPAG
ASSPAPRTALQPQESVGAGAGEAALPLPG.
Background
B-cell Activating Factor Receptor Human Recombinant: Unlocking the Potential of a Key Immunomodulatory Target
Abstract:
B-cell Activating Factor Receptor (BAFF-R) human recombinant is a critical component of the B-cell immune response, playing a pivotal role in B-cell survival, maturation, and antibody production. This research paper provides a comprehensive analysis of BAFF-R, including its characteristics, signaling pathways, and potential therapeutic applications. Furthermore, innovative methodologies for the production and optimization of BAFF-R human recombinant are proposed, shedding light on its future implications in the field of immunotherapy.
Introduction:
The immune system relies on the precise regulation of B-cell functions, with BAFF-R serving as a key modulator of B-cell development and activation. This paper explores the unique features of BAFF-R and presents novel approaches for its production and optimization, aiming to uncover its therapeutic potential.
Characteristics and Signaling Pathways:
BAFF-R is a type III transmembrane protein expressed primarily on B-cells. It belongs to the tumor necrosis factor receptor superfamily and binds specifically to B-cell activating factor (BAFF). Engagement of BAFF-R by BAFF initiates intracellular signaling cascades, including the activation of nuclear factor-kappa B (NF-κB) and mitogen-activated protein kinase (MAPK) pathways, promoting B-cell survival, proliferation, and differentiation.
Production of BAFF-R Human Recombinant:
Efficient production methodologies are crucial for the therapeutic application of BAFF-R human recombinant. Various expression systems, such as mammalian cell-based platforms, have been explored to ensure proper folding and post-translational modifications of the protein. Optimization strategies, including codon optimization and vector design, have been employed to enhance production efficiency. Purification techniques, such as affinity chromatography and size exclusion chromatography, have been optimized to isolate high-quality BAFF-R recombinant.
Potential Therapeutic Applications:
BAFF-R human recombinant holds great promise in the field of immunotherapy. Dysregulation of the BAFF/BAFF-R signaling axis has been implicated in autoimmune diseases, such as systemic lupus erythematosus and rheumatoid arthritis. Thus, modulating BAFF-R activity using BAFF-R human recombinant may provide a targeted therapeutic approach for these conditions. Additionally, BAFF-R represents a potential target for B-cell malignancies, and BAFF-R human recombinant may serve as an adjuvant therapy in combination with existing treatments.
Conclusion:
BAFF-R human recombinant represents a crucial immunomodulatory target with diverse therapeutic applications in immunotherapy. Optimizing production methodologies and further understanding its signaling pathways will enhance its clinical utility. With its potential implications in autoimmune diseases and B-cell malignancies, BAFF-R human recombinant holds immense promise as an innovative therapeutic tool for immune-related disorders.
What is the molecular weight/Mw of BAFF R Protein?
BAFF R Protein has a total Mw of 7.7kDa.

What is the source or expression system of BAFF R Protein?
Escherichia Coli.

What is the Purity of BAFF R Protein?
BAFF R Protein is >95% pure as determined by SDS-PAGE.

What is the Biological Activity of BAFF R Protein?
Determined by its ability to block BAFF induced mouse splenocyte survival. The expected ED50 for this effect is 1.0-5.0 µg/ml in the presence of 1.0µg/ml of human soluble BAFF.

What is the amino acid sequence of BAFF R Protein?
MRRGPRSLRGRDAPAPTPCVPAECFDLLVRHCVACGLLRTPRPKPAG
ASSPAPRTALQPQESVGAGAGEAALPLPG.

What applications can BAFF R Protein be used in?
BAFF R Protein can probably be used in western blot, ELISA and Lateral Flow.

What is the endotoxin level for BAFF R Protein?
The endotoxin level is minimal, BAFF R Protein was purified using conventional chromatography techniques.

ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

Description:

Resistin Human Recombinant

Cysteine-rich secreted protein FIZZ3, Adipose tissue-specific secretory factor, ADSF, C/EBP-epsilon-regulated myeloid-specific secreted cysteine-rich protein, Cysteine-rich secreted protein A12-alpha-like 2, RSTN, XCP1, RETN1, MGC126603, MGC126609.

Product # :

CYT-456

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Description

Resistin Human Recombinant produced in e.coli is a homodimeric, non-glycosylated, polypeptide chain containing 2 x 93 amino acids and having a total molecular weight of 19.7kDa.The Resistin Human Recombinant protein is purified by standard chromatographic techniques.

Source

Escherichia Coli.

Formulation

Sterile filtered and lyophilized from 0.1% Trifluoroacetic Acis (TFA).

Purity

Greater than 95% as determined by SDS-PAGE.

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Introduction
Resistin, a product of the RSTN gene, is a peptide hormone belonging to the class of cysteine-rich secreted proteins which is termed the RELM family, and is also described as ADSF (Adipose Tissue- Specific Secretory Factor) and FIZZ3 (Found in Inflammatory Zone). Human resistin contains 108 amino acids as a prepeptide, and its hydrofobic signal peptide is cleaved before its secretion. Resistin circulates in human blood as a dimeric protein consisting of two 92 amino acid polypeptides, which are disulfide-linked via Cys26.
Mouse resistin, specifically produced and secreted by adipocyte, acts on skeletal muscle myocytes, hepatocytes and adipocytes themselves so that it reduces their sensitivity. Steppan et al. have suggested that resistin suppresses the ability to stimulate glucose uptake. They have also suggested that resistin is present at elevated levels in blood of obese mice, and is down regulated by fasting and antidiabetic drugs. Way et al., on the other hand, have found that resistin expression is severly suppressed in obesity and is stimulated by several antidiabetic drugs.
Other studies have shown that mouse resistin increases during the differentiation of adipocytes, but it also seems to inhibit adipogenesis. In contrast, the human adipogenic differentiation is likely to be associated with a down regulation of resistin gene expression.
Synonyms
Cysteine-rich secreted protein FIZZ3, Adipose tissue-specific secretory factor, ADSF, C/EBP-epsilon-regulated myeloid-specific secreted cysteine-rich protein, Cysteine-rich secreted protein A12-alpha-like 2, RSTN, XCP1, RETN1, MGC126603, MGC126609.
Physical Appearance
Filtered White lyophilized (freeze-dried) powder.
Stability
Store lyophilized protein at -20°C. Aliquot the product after reconstitution to avoid repeated freezing/thawing cycles. Reconstituted protein can be stored at 4°C for a limited period of time; it does not show any change after two weeks at 4°C.
Solubility
It is recommended to reconstitute the lyophilized Resistin in sterile 18MΩ-cm H2O at a concentration of 100µg/ml, which can then be further diluted to other aqueous solutions.
Amino Acid Sequence
MSSKTLCSME EAINERIQEV AGSLIFRAIS SIGLECQSVT SRGDLATCPR GFAVTGCTCG SACGSWDVRA ETTCHCQCAG MDWTGARCCR VQP

ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

Description:

Bovine Histone

Product # :

PRO-2558

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Description

Histone Bovine is purified from bovine tissues by proprietary protein-chemical techniques.

Source

Bovine tissues.

Formulation

Histone Bovine is supplied in 20mM HEPES buffer pH-7.6, 250mM NaCl and 20% glycerol.

Purity

Greater than 80.0% as determined by SDS-PAGE.

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Introduction
Histone is vastly alkaline protein exists in eukaryotic cell nuclei which set and direct the DNA into structural units named nucleosomes. 5 key families of histones are: H1/H5, H2A, H2B, H3, including H4. The core histones are H2A, H2B, H3 and H4, whereas histones H1/H5 are identified as the linker histones. Moreover the dynamics of chromatin structure depend on posttranslational modification of histones in addition to the appearance of different histone variants. Histone H3 as well as H4 are modified covalently at several residues. The histone code is constitute by these and the H2A/H2B modifications.
Physical Appearance
Sterile Filtered clear solution.
Stability
Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time. Avoid multiple freeze-thaw cycles.
Immunological Functions
1. Binds IgG type human auto antibodies.2. Checkerboard/immunodot analysis of positive/negative samples.
coating concentration
0.2-0.5 μg/ml (depending on the type of ELISA plate and coating buffer). Suitable for labeling of functional groups.

ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

Description:

Complement C3 Rat

Complement C3, C3 and PZP-like alpha-2-macroglobulin domain-containing protein 1, C3, CPAMD1.

Product # :

PRO-2706

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Description

Rat Complement C3 produced in Rat plasma having a molecular weight of 187kDa.

Source

Rat Plasma.

Formulation

C3 solution contains phosphate buffer saline.

Purity

Greater than 95.0% as determined by SDS-PAGE.

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Introduction
C3 is central to the activation of all 3 pathways of complement activation. Initiation of each pathway generates proteolytic enzyme complexes which binds the target surface. These enzymes cleave a peptide bond in C3 releasing the anaphylatoxin C3a and activating C3b. Most of the C3 activated during complement activation never attaches to the surface due to its thioester reaction with water forming fluid phase C3b which is rapidly inactivated by factors H and I forming iC3b. Surface-bound C3b is necessary in all 3 pathways for efficient activation of C5 and formation of C5b-9 complexes that lyse the target cell membrane.
Synonyms
Complement C3, C3 and PZP-like alpha-2-macroglobulin domain-containing protein 1, C3, CPAMD1.
Physical Appearance
Sterile filtered solution.
Stability
C3 Mouse is stable at 4°C if entire vial will be used within 2-4 weeks.Store, frozen below -20°C for longer periods of time.For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Avoid multiple freeze-thaw cycles.

ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

Description:

Calmodulin Human

Calmodulin, CaM, CALM.

Product # :

PRO-2799

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Source

Human brain tissue.

Formulation

CALM was lyophilized with 2mM EDTA.

Purity

Greater than 95.0%.

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Synonyms
Calmodulin, CaM, CALM.
Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
Stability
Lyophilized CALM although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution Calmodulin should be stored at 4°C between 2-7 days and for future use below -18°C. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA). Please prevent freeze-thaw cycles.
Solubility
It is recommended to reconstitute the lyophilized CALM in sterile 18MΩ-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.
Applications
Blood samples from tissue donors were tested and found to be negative for syphilis, HBsAg, HIV-1 and HIV-2 antibodies and HCV.
Background
Calmodulin, a small, ubiquitous calcium-binding protein, stands as a linchpin in cellular signalling cascades. Its ability to modulate diverse cellular processes by transducing calcium signals has made it a focal point of scientific inquiry. With its role extending from muscle contraction to neurotransmitter release and gene expression, calmodulin orchestrates intricate physiological responses. This research delves into the multifaceted world of calmodulin, exploring its structural characteristics, calcium-binding properties, and its pivotal involvement in various biological pathways.
Structural Marvel of Calmodulin:
Calmodulin boasts a unique dumbbell-shaped structure, composed of four EF-hand motifs that enable it to bind calcium ions. When calcium binds to calmodulin, it undergoes a conformational change, allowing it to interact with a myriad of target proteins. This structural adaptability is fundamental to its ability to regulate a wide array of cellular activities.
Calcium Signalling and Transduction:
Intracellular calcium serves as a ubiquitous second messenger, and calmodulin is the key mediator of calcium signalling. When calcium levels rise, calmodulin binds calcium ions, triggering its activation. This activated form of calmodulin modulates the activity of various proteins, including enzymes, ion channels, and transcription factors. By doing so, calmodulin influences processes such as muscle contraction, neurotransmitter release, and cell proliferation.

ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

Description:

C-Reactive Protein Human

C-reactive protein, CRP, PTX1, MGC88244, MGC149895.

Product # :

PRO-557

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Description

Human CRP produced in Human plasma having a molecular mass of 114 kDa. It can be used as a marker for inflammation and also used for monitoring and prediction of future events in coronary artery disease.

Source

Human Plasma.

Formulation

The protein solution is in 20mM TRIS buffer pH 8.0 containing 0.28M NaCl, 0.09% NaN3 and 5mM CaCl2.

Purity

Greater than 96.0%.

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Introduction
CRP is an acute phase protein that correlates with inflammatory disease and is synthesized by hepatocytes during the acute phase response by certain cytokines (IL-1 and TNF Alpha and Beta). CRP levels increase dramatically ( up to 1,000 fold) and serve as a useful marker of inflammation in such conditions as bacterial infection, rheumatoid arthritis, viral infections, transplantation rejection, meningitis, myocardial infarction, septicemia, osteomyelitis and others. CRP is also highly correlated to Serum Amyloid A levels.
Synonyms
C-reactive protein, CRP, PTX1, MGC88244, MGC149895.
Physical Appearance
Sterile Filtered clear solution.
Stability
Human CRP should be stored at 2-8°C. Do not freeze!
Human Virus Test
Starting material donor has been tested and certified negative for antibodies to HIV-1, HIV-2, HCV, HBSAG and HIV/HBV/HCV (PCR).

ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

Description:

Follistatin Human Recombinant, Sf9

Follistatin, FS, Activin-Binding Protein, Follistatin Isoform FST317, FST.

Product # :

CYT-865

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Description

FST produced in Sf9 Baculovirus cells is a single, glycosylated polypeptide chain containing 295 amino acids (30-317a.a.) and having a molecular mass of 32.5kDa.FST is expressed with a 7 amino acid His tag at C-Terminus and purified by proprietary chromatographic techniques.

Source

Sf9, Baculovirus cells.

Formulation

FST protein solution (0.25mg/ml) contains Phosphate buffered saline (pH7.4) and 10% glycerol.

Purity

Greater than 90.0% as determined by SDS-PAGE.

sds-page

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Introduction
Follistatin is a single-chain gonadal protein that specifically inhibits follicle-stimulating hormone release. The single FST gene encodes two isoforms, FST317 and FST344 containing 317 and 344 amino acids respectively, resulting from alternative splicing of the precursor mRNA. In a study in which 37 candidate genes were tested for linkage and association with polycystic ovary syndrome (PCOS) or hyperandrogenemia in 150 families, evidence was found for linkage between PCOS and follistatin. Follistatin binds directly to activin and functions as an activin antagonist. specific inhibitor of the biosynthesis and secretion of pituitary follicle stimulating hormone (fsh).
Synonyms
Follistatin, FS, Activin-Binding Protein, Follistatin Isoform FST317, FST.
Physical Appearance
Sterile filtered colorless solution.
Stability
Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Avoid multiple freeze-thaw cycles.
Amino Acid Sequence
MGNCWLRQAK NGRCQVLYKT ELSKEECCST GRLSTSWTEE DVNDNTLFKW MIFNGGAPNC IPCKETCENV DCGPGKKCRM NKKNKPRCVC APDCSNITWK GPVCGLDGKT YRNECALLKA RCKEQPELEV QYQGRCKKTC RDVFCPGSST CVVDQTNNAY CVTCNRICPE PASSEQYLCG NDGVTYSSAC HLRKATCLLG RSIGLAYEGK CIKAKSCEDI QCTGGKKCLW DFKVGRGRCS LCDELCPDSK SDEPVCASDN ATYASECAMK EAACSSGVLL EVKHSGSCNH HHHHH
Background
What is the molecular weight/Mw of FOLLISTATIN HUMAN, SF9 Protein?
FOLLISTATIN HUMAN, SF9 Protein has a total Mw of 32.5kDa.

What is the source or expression system of FOLLISTATIN HUMAN, SF9 Protein?
Sf9, Baculovirus cells.
What is the Purity of FOLLISTATIN HUMAN, SF9 Protein?
FOLLISTATIN HUMAN, SF9 Protein is >90% pure as determined by SDS-PAGE.

What is the Biological Activity of FOLLISTATIN HUMAN, SF9 Protein?
The biological functionality of FOLLISTATIN HUMAN, SF9 Protein will be determined in the future.

What is the amino acid sequence of FOLLISTATIN HUMAN, SF9 Protein?
MGNCWLRQAK NGRCQVLYKT ELSKEECCST GRLSTSWTEE DVNDNTLFKW MIFNGGAPNC IPCKETCENV DCGPGKKCRM NKKNKPRCVC APDCSNITWK GPVCGLDGKT YRNECALLKA RCKEQPELEV QYQGRCKKTC RDVFCPGSST CVVDQTNNAY CVTCNRICPE PASSEQYLCG NDGVTYSSAC HLRKATCLLG RSIGLAYEGK CIKAKSCEDI QCTGGKKCLW DFKVGRGRCS LCDELCPDSK SDEPVCASDN ATYASECAMK EAACSSGVLL EVKHSGSCNH HHHHH.

What applications can FOLLISTATIN HUMAN, SF9 Protein be used in?
FOLLISTATIN HUMAN, SF9 Protein can probably be used in western blot, ELISA and Lateral Flow.

What is the endotoxin level for FOLLISTATIN HUMAN, SF9 Protein?
The endotoxin level is minimal, FOLLISTATIN HUMAN, SF9 Protein was purified using conventional chromatography techniques.

ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

Description:

Tyrosine Kinase ErbB-2 (146-192) Human Recombinant

erbB-2, EC 2.7.10.1, p185erbB2, C-erbB-2.

Product # :

PKA-136

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Description

The ErbB2 Human is created as a recombinant protein with a 4kda N-terminal fusion of His Tag. The ErbB2 His-Tagged Fusion Protein, produced in E. coli, is a 14kDa protein containing 47 amino acid residues of the ErbB2 Human, 146-192amino acids.

Source

Escherichia Coli.

Formulation

Each mg was lyophilized with 1xPBS, 0.4% SDS and 4mM DTT.

Purity

Greater than 90% as determined by SDS-PAGE.

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Synonyms
erbB-2, EC 2.7.10.1, p185erbB2, C-erbB-2.
Physical Appearance
Filtered White lyophilized (freeze-dried) powder.
Stability
Store lyophilized ErbB2 at -20°C. Aliquot the product after reconstitution to avoid repeated freezing/thawing cycles. Reconstituted protein can be stored at 4°C for a limited period of time; it does not show any change after two weeks at 4°C.
Solubility
It is recommended to add deionized water to prepare a working stock solution of approximately 0.5mg/ml and let the lyophilized pellet dissolve completely. Product is not sterile! Please filter the product by an appropriate sterile filter before using it on cell culture.
Background
HER2 / ErbB2 (human epidermal growth factor receptor 2) is a member of the ErbB family of receptor tyrosine kinases. It plays a role in cell signalling related to growth, differentiation and proliferation.
erbB-2 encodes a 185-kDa orphan receptor tyrosine kinase that is constitutively active as a dimer and displays potent oncogenic activity when overexpressed.
ErbB2 works as a receptor that, upon ligand binding activates downstream signalling pathways such as the MAPK and PI3K/AKT pathways, promoting cell proliferation and survival.
The activation of ErbB2 leads to enhanced cell growth and survival, making it critical in normal cellular functions and in the pathogenesis of cancer.
Herstatin, as the product of alternative HER-2 transcript, retains intron 8.
The herstatin mRNA is expressed in normal human fetal kidney and liver, but is at reduced levels relative to p185HER-2 mRNA in carcinoma cells that contain an amplified HER-2 gene. Herstatin appears to be an inhibitor of p185HER-2, because it disrupts dimers, reduces tyrosine phosphorylation of p185, and inhibits the anchorage-independent growth of transformed cells that overexpress HER-2.

ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

Description:

Mouse Collagen-I

Product # :

PRO-2681

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Description

Mouse Collagen-I is a natural protein purified from Mouse tail tendon. Collagen-I is purified by proprietary chromatographic techniques.

Source

Mouse tail tendon.

Formulation

Collagen-I was lyophilized without additives.

Purity

> 90.0%.

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Introduction
Collagen, a major component of the extracellular matrix, is a fibrous protein that provides tensile strength to tissues giving them structural integrity. Collagen and its derivative, gelatin, have been widely used in medical, pharmaceutical and consumer products for more than 100 years. The supply of these materials, created from animal remains, is both abundant and inexpensive. However, most formulations are not highly purified and have the potential to cause an inflammatory reaction in some product users. In addition, concerns have been raised over the last several years about the potential for contamination of bovine products with the agent that causes mad cow disease and its human variant, Creutzfeldt-Jakob Disease. Animal collagens are subject to extensive modifications that continue over the life of the molecule in the extracellular space. These differences influence both the extractability of collagens from tissue and the biophysical characteristics of these collagens. As a result, collagens isolated from tissues exhibit significant lot-to-lot variability and, as bulk materials, are often analytically intractable. Products that contain animal-derived collagen can induce potentially harmful inflammatory or immune responses in humans and pose risk of contamination with viruses or prions, potentially life-threatening pathogens. Recombinant collagens are essentially identical to the native collagen protein thereby reducing the risk of inflammation, immune response, and disease as compared to animal-sourced collagen.
Physical Appearance
Filtered White lyophilized (freeze-dried) powder.
Stability
Lyophilized Collagen-I although stable at room temperature for 3 weeks, should be stored desiccated below -18C. Upon reconstitution Collagen-I should be stored at 4C between 2-7 days and for future use below -18C.For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Please prevent freeze-thaw cycles.
Solubility
It is recommended to Add 0.5 M acetic acid, pH 3 at 4°C to prepare a working stock solution not less than 100µg/ml, which can then be further diluted to other aqueous solutions.

ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

Description:

Cardiac Troponin C-I-T Complex Human

Troponin I cardiac muscle, Cardiac troponin I, TNNI3, TNNC1, CMH7, RCM1, cTnI, CMD2A, MGC116817, Troponin C slow skeletal and cardiac muscles, TN-C, TNNC1, TNNC, TNC, CMD1Z

Product # :

PRO-2741

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Description

Human Cardiac Troponin C-I-T Complex Protein produced in Human heart tissue having a molecular mass of approximately 75kDa.

Source

Human cardiac tissue.

Formulation

Troponin C-I-T Complex solution (0.2µm filtered) contains 25mM TRIS buffer, 0.15M NaCl, 0.09% sodium azide, pH 7.5.

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Introduction
Troponin Complex is a heteromeric protein playing an important role in the regulation of skeletal and cardiac muscle contraction. It consists of three subunits, Troponin I , Troponin T and Troponin C. Each subunit is responsible for part of Troponin Complex function. E.g. Troponin I inhibits ATP-ase activity of acto-myosin. Troponin T and Troponin I are presented in cardiac muscles in different forms than in skeletal muscles. Purified subunits of rcTnI, rcTnC and rcTnT are recomplexed in vitro under appropriate conditions.
Synonyms
Troponin I cardiac muscle, Cardiac troponin I, TNNI3, TNNC1, CMH7, RCM1, cTnI, CMD2A, MGC116817, Troponin C slow skeletal and cardiac muscles, TN-C, TNNC1, TNNC, TNC, CMD1Z
Physical Appearance
Sterile Filtered brown solution.
Stability
Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA). Avoid multiple freeze-thaw cycles.
Human Virus Test
Starting material donor has been tested and certified negative for antibodies to HIV-1, HIV-2, HCV, HBSAG, Syphilis and HIV/HBV/HCV.

ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

Description:

Human Serum Albumin Recombinant, Plant

Serum albumin, ALB, PRO0883, PRO0903, PRO1341, DKFZp779N1935, GIG20, GIG42, PRO1708, PRO2044, PRO2619, PRO2675, UNQ696, SA, HSA.

Product # :

PRO-595

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Description

HSA Human Recombinant produced in Plant is a non-glycosylated, polypeptide chain containing 585 amino acids and having a molecular mass of 67 kDa. The optimum concentration for recombinant Albumin to be used in cell culture ranges between 0.5gr to 2gr per liter. The recombinant Albumin is purified by proprietary chromatographic techniques.

Source

Rice Grain.

Formulation

The Recombinant Albumin was lyophilized with sodium chloride. A 10% w/v solution when dissolved in water will contain 50mM NaCl.

Purity

Greater than 98% as determined by SDS-PAGE.

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Introduction
Albumin is synthesized in the liver as preproalbumin which has an N-terminal peptide that is removed before the nascent protein is released from the rough endoplasmic reticulum. The product, proalbumin, is in turn cleaved in the Golgi vesicles to produce the secreted albumin. Albumin is a soluble, monomeric protein which comprises about one-half of the blood serum protein. Albumin functions primarily as a carrier protein for steroids, fatty acids, and thyroid hormones and plays a role in stabilizing extracellular fluid volume. Mutations in this gene on chromosome 4 result in various anomalous proteins. Albumin is a globular unglycosylated serum protein of molecular weight 65,000. The human albumin gene is 16,961 nucleotides long from the putative 'cap' site to the first poly (A) addition site. It is split into 15 exons which are symmetrically placed within the 3 domains that are thought to have arisen by triplication of a single primordial domain.
HSA is widely used to stabilize blood volume generally from donors but the fear of contamination such as HIV & Hepatitis has enticed great interest in the recombinant form which is identical to the natural blood.
Synonyms
Serum albumin, ALB, PRO0883, PRO0903, PRO1341, DKFZp779N1935, GIG20, GIG42, PRO1708, PRO2044, PRO2619, PRO2675, UNQ696, SA, HSA.
Physical Appearance
Sterile Filtered white lyophilized powder.
Stability
Recombinant Albumin although stable at 4°C for 3 weeks, should be stored at -18°C.Please prevent freeze-thaw cycles.
Applications
Recombinant Albumin can be used as a media culture supplement at concentrations up to 5 grams per liter. Gradual adaptation of cell lines over several passages to a concentration of 0.5gr to 2gr per liter.

ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

Description:

Pramlintide

Product # :

HOR-300

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Description

Pramlintide Synthetic is a single, non-glycosylated polypeptide chain containing 37 amino acids, having a molecular mass of 3949.4 Dalton and a Molecular formula of C171H267N51O53S2.

Formulation

The protein was lyophilized with no additives.

Purity

Greater than 98.0% as determined by:
(a) Analysis by RP-HPLC.
(b) Analysis by SDS-PAGE.

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Introduction
Pramlintide acetate is a hormone that is released into the bloodstream, in a similar pattern as insulin. Pramlintide aids in the absorption of glucose by slowing gastric emptying, promoting satiety, and inhibiting inappropriate secretion of glucagon, a catabolic hormone that opposes the effects of insulin.
Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
Stability
Lyophilized Pramlintide although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution Pramlintide should be stored at 4°C between 2-7 days and for future use below -18°C.For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Please prevent freeze-thaw cycles.
Solubility
It is recommended to reconstitute the lyophilized Pramlintide in sterile 18MΩ-cm H2O not less than 100 µg/ml, which can then be further diluted to other aqueous solutions. The Pramlintide is also soluble in 1% Acetic Acid.
Amino Acid Sequence
KCNTATCATNRLANFLVHSSNNFGPILPPTNVGSNTY-NH2.
Background
What is the molecular weight/Mw of PRAMLINTIDE Protein?
PRAMLINTIDE Protein has a total Mw of 3.949kDa.

What is the Purity of PRAMLINTIDE Protein?
PRAMLINTIDE Protein is >98% pure as determined by SDS-PAGE.

What is the Biological Activity of PRAMLINTIDE Protein?
The biological functionality of PRAMLINTIDE Protein will be determined in the future.

What is the amino acid sequence of PRAMLINTIDE Protein?
KCNTATCATNRLANFLVHSSNNFGPILPPTNVGSNTY-NH2.

What applications can PRAMLINTIDE Protein be used in?
PRAMLINTIDE Protein can probably be used in western blot, ELISA and Lateral Flow.

What is the endotoxin level for PRAMLINTIDE Protein?
The endotoxin level is minimal, PRAMLINTIDE Protein was purified using conventional chromatography techniques.

Who supplies PRAMLINTIDE that is in stock and available to order?
ProSpec has the protein in stock and available for immediate delivery.

Where can I order bulk mg quantities of PRAMLINTIDE?
ProSpec supplies bulk mg quantities at affordable prices that meets research and academic budgets.

ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

Description:

Leptin Ovine Recombinant

OB Protein, Obesity Protein, OBS, Obesity factor.

Product # :

CYT-239

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Quantity :

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Description

Leptin Ovine Recombinant produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 146 amino acids and having a molecular mass of 16 kDa.The Leptin is purified by proprietary chromatographic techniques.

Source

Escherichia Coli.

Formulation

The protein was lyophilized from a concentrated (1mg/ml) solution with 0.0045mM NaHCO3.

Purity

Greater than 95.0% as determined by:
(a) Analysis by SEC-HPLC.
(b) Analysis by SDS-PAGE.

Biological Activity

Biological active as evidenced by inducing proliferation of BAF/3 cells stably transfected with the long form of human leptin receptor.

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Introduction
A 16-kDa peptide hormone secreted from white adipocytes and implicated in the regulation of food intake and energy balance. Leptin provides the key afferent signal from fat cells in the feedback system that controls body fat stores.
Synonyms
OB Protein, Obesity Protein, OBS, Obesity factor.
Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
Stability
Lyophilized Leptin although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution Leptin should be stored at 4°C between 2-7 days and for future use below -18°C.For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Please prevent freeze-thaw cycles.
Solubility
It is recommended to reconstitute the lyophilized Leptin in sterile 18MΩ-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.
Amino Acid Sequence
The sequence of the first five N-terminal amino acids was determined and was found to be Ala-Val-Pro-Ile-Arg.
Protein content
Protein quantitation was carried out by two independent methods1. UV spectroscopy at 280 nm using the absorbency value of 0.2 as the extinction coefficient for a 0.1% (1mg/ml) solution. This value is calculated by the PC GENE computer analysis program of protein sequences (IntelliGenetics). 2. Analysis by RP-HPLC,using calibrated solution of Leptin Ovine as a Reference Standard.

ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

Description:

Nectin Cell Adhesion Molecule 3 Human Recombinant

Nectin-3, CDw113, Nectin cell adhesion molecule 3, Poliovirus receptor-related protein 3, CD113, PVRL3, PRR3, NECTIN-3, PVRR3, PPR3.

Product # :

PRO-2504

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Description

NECTIN3 produced in Sf9 Insect cells is a single, glycosylated polypeptide chain containing 355 amino acids (58-404 a.a.) and having a molecular mass of 39.1kDa (Molecular size on SDS-PAGE will appear at approximately 40-57kDa).NECTIN3 is expressed with an 8 amino acid His tag at C-Terminus and purified by proprietary chromatographic techniques.

Source

Sf9, Insect cells.

Formulation

NECTIN3 protein solution (0.25mg/ml) contains Phosphate Buffered Saline (pH 7.4), 20% glycerol and 1mM DTT.

Purity

Greater than 90.0% as determined by SDS-PAGE.

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Introduction
NECTIN3, also known as Nectin Cell Adhesion Molecule 3, is part of the nectin family. NECTIN3 is intended to initiate cell-cell adhesion to stimulate cell attachment and to allow subsequent formation of JAM-and cadherin-based intercellular junctions. NECTIN3 induces endocytosis-mediated down-regulation of PVR from the cell surface, which results in reduction of cell movement & proliferation. Following Nectin-3 activity adds strength to the junction through trans-interaction with various molecules.
Synonyms
Nectin-3, CDw113, Nectin cell adhesion molecule 3, Poliovirus receptor-related protein 3, CD113, PVRL3, PRR3, NECTIN-3, PVRR3, PPR3.
Physical Appearance
Sterile filtered colorless solution.
Stability
Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Avoid multiple freeze-thaw cycles.
Amino Acid Sequence
GPIIVEPHVT AVWGKNVSLK CLIEVNETIT QISWEKIHGK SSQTVAVHHP QYGFSVQGEY QGRVLFKNYS LNDATITLHN IGFSDSGKYI CKAVTFPLGN AQSSTTVTVL VEPTVSLIKG PDSLIDGGNE TVAAICIAAT GKPVAHIDWE GDLGEMESTT TSFPNETATI ISQYKLFPTR FARGRRITCV VKHPALEKDI RYSFILDIQY APEVSVTGYD GNWFVGRKGV NLKCNADANP PPFKSVWSRL DGQWPDGLLA SDNTLHFVHP LTFNYSGVYI CKVTNSLGQR SDQKVIYISD PPTTTTLQPT IQWHPSTADI EDLATEPKKL PFPLSTLATI KDDTIATLEH HHHHH.

ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

Description:

Pregnancy-Associated Plasma Protein-1 Human

Pappalysin-1, Pregnancy-associated plasma protein A, PAPP-A, IGF-dependent IGFBP-4 protease, IGFBP-4ase, PAPPA, PAPA, DIPLA1, PAPPA1, ASBABP2.

Product # :

ENZ-1204

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Quantity :

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Shipped at Room temp

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Description

PAPP-A Human native purified from human placenta having a total molecular mass of ~200 kDa. The PAPP-A is purified by proprietary chromatographic techniques.

Source

Human Placenta

Formulation

PAPP-A protein was lyophilized from 10mM Tris-HCl pH-7, 0.15M NaCl, 0.1% NGME & 0.09% NaN3.

Purity

Greater than 95.0% as determined by SDS-PAGE.

More Info

Introduction
PAPPA is a large zinc binding protein, which plays a role as a metalloprotease and specifically cleaves IGFBP-4 and IGFBP-5, resulting in release of bound IGF. PAPP-A regulates IGF bioactivity in various biological systems, including the human ovary and cardiovascular systems. PAPP A levels were higher in patients with unstable angina or acute myocardial infarction. PAPPA is also involved in local proliferative processes such as wound healing and bone remodeling. Moreover, PAPP-A is produced in high concentrations during pregnancy and is released into the maternal circulation. In placenta, PAPP A is expressed in X cells in septa and anchoring villi, and in syncytiotrophoblasts in the chorionic villi.
Synonyms
Pappalysin-1, Pregnancy-associated plasma protein A, PAPP-A, IGF-dependent IGFBP-4 protease, IGFBP-4ase, PAPPA, PAPA, DIPLA1, PAPPA1, ASBABP2.
Physical Appearance
Brownish lyophilized (freeze-dried) powder.
Stability
Lyophilized PAPP-A although stable at room temperature for 3 weeks, should be stored desiccated below -18C. Upon reconstitution PAPP-A should be stored at 4C between 2-7 days and for future use below -18C. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA). Please prevent freeze-thaw cycles.
Solubility
It is recommended to add deionized water to a working concentration of 0.1mg/ml and let the lyophilized pellet dissolve completely.
Human Virus Test
Starting material tested and found negative for HIV-I, HIV-II, HCV antibodies and HBsAg antigen.

ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

Description:

Alarelin

Alarelin, Alarelin Acetate.

Product # :

HOR-291

Price :

Quantity :

Shipping Method :

Shipped at Room temp

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Description

Alarelin acetate peptide is a single, non-glycosylated polypeptide chain containing 9 amino acids, having a molecular mass of 1167.3 Dalton and a Molecular formula of C56H78N16O12 x C2H4O2. The CAS No. is 79561-22-1.

Source

Synthetic.

Formulation

The Alarelin was lyophilized with no additives.

Purity

Greater than 99.0% as determined by Analysis by RP-HPLC.

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Introduction
Alarelin (Gonadotrophin-releasing hormone) is a synthetic LH-RH agonist that is found in higher amounts than that of LH-RH in rat hypophyseal stimulation of gonadotropin secretion in vivo and in vitro and in ovulation inductions. Alarelin is known for its induction of ovulation. Alarelin acetate is the acetate form of a hypothalamic peptide that stimulates the release of FSH and LH from the pituitary gland.
Synonyms
Alarelin, Alarelin Acetate.
Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
Stability
Lyophilized Alarelin e although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution Alarelin should be stored at 4°C between 2-7 days and for future use below -18°C. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Please prevent freeze-thaw cycles.
Solubility
It is recommended to reconstitute the lyophilized Argipressin in sterile 18MΩ-cm H2O not less than 100 µg/ml, which can then be further diluted to other aqueous solutions.
Amino Acid Sequence
5-oxo-pro-His-Trp-Ser-Tyr-D-Ala-Leu-Arg-Pro-Nhet x CH3COOH.
Background
What is the molecular weight/Mw of ALARELIN Protein?
ALARELIN Protein has a total Mw of 1.16kDa.

What is the source or expression system of ALARELIN Protein?
Synthetic.

What is the Purity of ALARELIN Protein?
ALARELIN Protein is >99% pure as determined by SDS-PAGE.

What is the Biological Activity of ALARELIN Protein?
The biological functionality of ALARELIN Protein will be determined in the future.

What is the amino acid sequence of ALARELIN Protein?
5-oxo-pro-His-Trp-Ser-Tyr-D-Ala-Leu-Arg-Pro-Nhet x CH3COOH.

What applications can ALARELIN Protein be used in?
ALARELIN Protein can probably be used in western blot, ELISA and Lateral Flow.

What is the endotoxin level for ALARELIN Protein?
The endotoxin level is minimal, ALARELIN Protein was purified using conventional chromatography techniques.

Who supplies ALARELIN that is in stock and available to order?
ProSpec has the protein in stock and available for immediate delivery.

Where can I order bulk mg quantities of ALARELIN?
ProSpec supplies bulk mg quantities at affordable prices that meets research and academic budgets.

ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

Description:

Procalcitonin Human Recombinant, His Tag

Procalcitonin, PCT.

Product # :

HOR-295

Price :

Quantity :

Shipping Method :

Shipped with Ice Packs

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Description

Procalcitonin Human Recombinant produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 114 amino acids fragment (3-116) having a molecular mass of 17.13 kDa and an amino-terminal hexahistidine tag. The PCT is purified by standard chromatographic techniques.

Source

Escherichia Coli.

Formulation

PCT is supplied in 20mM Tris-HCl pH 8.0 and 50% glycerol.

Purity

Greater than 95.0% as determined by SDS-PAGE.

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Introduction
Procalcitonin is a peptide hormone mainly produced by the C cells of the thyroid and certain endocrine cells of the lung. Under normal expression conditions, procalcitonin is immediately cleaved into three specific fragments, an N terminal residue, calcitonin and katacalcin. Levels of unprocessed procalcitonin rise significantly after bacterial infection, trauma or shock.
Synonyms
Procalcitonin, PCT.
Physical Appearance
Sterile Filtered clear solution.
Stability
Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time.Please prevent freeze-thaw cycles.
Background
What is the molecular weight/Mw of PROCALCITONIN HUMAN, HIS Protein?
PROCALCITONIN HUMAN, HIS Protein has a total Mw of 17.13kDa.

What is the source or expression system of PROCALCITONIN HUMAN, HIS Protein?
Escherichia Coli.

What is the Purity of PROCALCITONIN HUMAN, HIS Protein?
PROCALCITONIN HUMAN, HIS Protein is >95% pure as determined by SDS-PAGE.

What is the Biological Activity of PROCALCITONIN HUMAN, HIS Protein?
The biological functionality of PROCALCITONIN HUMAN, HIS Protein will be determined in the future.

What is the amino acid sequence of PROCALCITONIN HUMAN, HIS Protein?
PROCALCITONIN HUMAN, HIS Protein is composed from 114 amino acids.

What applications can PROCALCITONIN HUMAN, HIS Protein be used in?
PROCALCITONIN HUMAN, HIS Protein can probably be used in western blot, ELISA and Lateral Flow.

What is the endotoxin level for PROCALCITONIN HUMAN, HIS Protein?
The endotoxin level is minimal, PROCALCITONIN HUMAN, HIS Protein was purified using conventional chromatography techniques.

Who supplies recombinant PROCALCITONIN HUMAN, HIS that is in stock and available to order?
ProSpec has the protein in stock and available for immediate delivery.

Where can I order bulk mg quantities of PROCALCITONIN HUMAN, HIS?
ProSpec supplies bulk mg quantities at affordable prices that meets research and academic budgets.

ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

Description:

Small EDRK-Rich Factor 2 Human Recombinant

Small EDRK-rich factor 2, Gastric cancer-related protein VRG107, Protein 4F5-related, 4F5re, h4F5rel, FAM2C, HsT17089.

Product # :

PRO-1730

Price :

Quantity :

Shipping Method :

Shipped with Ice Packs

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Description

SERF2 Human Recombinant produced in E.Coli is a single, non-glycosylated polypeptide chain containing 82 amino acids (1-59 a.a) and having a molecular mass of 9.3kDa.SERF2 is fused to a 23 amino acid His-tag at N-terminus & purified by proprietary chromatographic techniques.

Source

Escherichia Coli.

Formulation

SERF2 protein solution (0.25mg/ml) containing 20mM Tris-HCl buffer (pH 8.0), 0.15M NaCl and 30% glycerol.

Purity

Greater than 85.0% as determined by SDS-PAGE.

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Introduction
SERF2 (small EDRK-rich factor 2) is a member of the SERF family. SERF2 is a protein-coding gene. Among the diseases associated with SERF2 are spinal muscular atrophy, and muscular atrophy.
Synonyms
Small EDRK-rich factor 2, Gastric cancer-related protein VRG107, Protein 4F5-related, 4F5re, h4F5rel, FAM2C, HsT17089.
Physical Appearance
Sterile Filtered clear solution.
Stability
Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Avoid multiple freeze-thaw cycles.
Amino Acid Sequence
MGSSHHHHHH SSGLVPRGSH MGSMTRGNQR ELARQKNMKK QSDSVKGKRR DDGLSAAARK QRDSEIMQQK QKKANEKKEE PK

ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

Description:

Borrelia Afzelii Outer Surface Protein p100 Recombinant

Product # :

BOR-017

Price :

Quantity :

Shipping Method :

Shipped with Ice Packs

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Description

Recombinant Borrelia Afzelii Outer Surface Protein p100 produced in SF9 is a glycosylated, polypeptide chain having a calculated molecular mass of 74,782 Dalton. Borrelia Afzelii p100 is expressed with a 10xHis tag at N-terminus and purified by proprietary chromatographic techniques.

Source

Sf9 insect cells.

Formulation

Borrelia Afzelii p100 is supplied in 20mM HEPES buffer pH-7.6, 250mM NaCl and 20% glycerol.

Purity

Greater than 80.0% as determined by SDS-PAGE.

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Introduction
Borrelia belongs to a genus of bacteria of the spirochete phylum. Borrelia causes borreliosis, which is a zoonotic, vector-borne disease transmitted mainly by ticks and some by lice, depending on the species. Of the 36 known species of Borrelia, 12 are distinguished to cause Lyme disease or borreliosis and are transmitted by ticks. The main Borrelia species causing Lyme disease are Borrelia burgdorferi, Borrelia afzelii, and Borrelia garinii. The Borrelia genus members have a linear chromosome which is about 900 kbp in length as well as an excess of both linear and circular plasmids in the 5-220 kbp size range. The plasmids are atypical, as compared to most bacterial plasmids, since they contain many paralogous sequences, a large number of pseudogenes and, in some cases, essential genes. Moreover, a number of the plasmids have features suggesting that they are prophages.
Physical Appearance
Sterile Filtered clear solution.
Stability
Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time. Avoid multiple freeze-thaw cycles.
Immunological Functions
1. Binds IgG- and IgM-type human antibodies.2. Immunodot test with Lyme disease positive/negative plasma.

ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.

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