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Description:

Activin-B Human Recombinant, Active

Inhibin beta B (activin AB beta polypeptide), Inhibin, beta-2, Activin beta-B chain, MGC157939.

Product # :

CYT-057

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Description

Activin B human Recombinant produced in Nicotiana benthamiana plant is a beta-B single chain (aa 293-406) containing 123 amino acids (molecular formula C615H910N178O177S12). Activin B is fused to a 10-His-tag at the N-terminal having the total molecular mass of 14kDa and purified by standard chromatographic techniques.

Source

Nicotiana benthamiana plant

Formulation

Lyophilized from 1mg/ml solution in 0.05M Tris-HCl buffer pH 7.4.

Purity

Greater than 97.0% as determined by Analysis by SDS-PAGE.

Biological Activity

The biological activity of Activin B is measured by its ability to inhibit mouse plasmacytoma cell line (MPC-11) cells proliferation. EC50 <5ng/ml is required to stimulate a half-maximal response at cytokine saturation. Note: Since applications vary, each investigator should titrate the reagent to obtain optimal results.

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Synonyms
Inhibin beta B (activin AB beta polypeptide), Inhibin, beta-2, Activin beta-B chain, MGC157939.
Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
Stability
Lyophilized Activin B although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution Activin B 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 Activin B in sterile 18M-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.
Amino Acid Sequence
HHHHHHHHHH GLECDGRTNL CCRQQFFIDF RLIGWNDWII APTGYYGNYC EGSCPAYLAG VPGSASSFHT AVVNQYRMRG LNPGTVNSCC IPTKLSTMSM LYFDDEYNIV KRDVPNMIVE ECG.
Background
An Investigation into the Functional Roles and Therapeutic Potential of Activin-B Human Recombinant, Active
1. Abstract
Activin-B Human Recombinant, Active, also referred to as beta-2, Activin beta-B chain, or MGC157939, is a crucial component of the Transforming Growth Factor-beta (TGF-beta) superfamily. The multifaceted nature of this protein implicates it in numerous physiological processes. This paper delves into the bioactivity of Activin-B, exploring its role in cellular proliferation, differentiation, apoptosis, and its potential for therapeutic applications, especially in the realms of regenerative medicine, reproductive health, and cancer therapy.
2. Introduction
The TGF-beta superfamily, of which Activin-B is a member, is renowned for its far-reaching implications in cell and developmental biology. This superfamily boasts members that control cell growth, differentiation, and apoptosis, thus playing vital roles in organogenesis, bone growth, and reproductive functions. This research paper aims to shed light on the characteristics and potential therapeutic applications of Activin-B.
3. Structure and Synthesis of Activin-B
Activin-B is a dimeric protein, composed of two identical beta-B chains. This homodimer undergoes multiple stages of synthesis, starting as a precursor protein, which then experiences proteolytic processing to eventually form the mature peptide. It is this coordinated activity of various enzymes and molecular chaperones that ensure the accurate biosynthesis of Activin-B.
4. Biological Functions of Activin-B
Activin-B's roles extend from embryogenesis and organogenesis to the modulation of reproductive functions. Its influence over cellular proliferation, differentiation, and apoptosis has significant repercussions in physiological and pathological scenarios. Its regulatory functions also encompass immunomodulation and wound healing, underpinning its extensive biological reach.
5. Activin-B in Regenerative Medicine
Regenerative medicine's primary focus is the repair and regeneration of tissues, and it is here that the potential of Activin-B shines. The protein's capacity to regulate cellular processes positions it as a possible agent in tissue repair, making it an intriguing research topic for therapeutic applications in regenerative medicine.
6. Activin-B and Reproductive Health
Activin-B’s role in reproductive health is undeniable, having been implicated in follicular development, ovulation, and pregnancy maintenance. Its potent influence on reproductive functions indicates the possibility of its use in the treatment of reproductive disorders, providing a potential pathway for further therapeutic development.
7. Activin-B in Cancer
Recent research has connected the deregulation of Activin-B to various types of cancer. Deciphering the mechanisms through which Activin-B affects cancer cell proliferation and survival could open up new avenues for targeted cancer therapy. This critical linkage emphasizes the need for comprehensive studies on Activin-B's role in oncogenesis.
8. Conclusion and Future Perspectives
Our understanding of Activin-B's biological functions has grown immensely, but many mysteries remain. The continued exploration of the molecular mechanisms through which Activin-B operates will undoubtedly yield more insights into its potential therapeutic uses, guiding the development of new treatments for a myriad of diseases.
What is the molecular weight / Mw of Activin B Protein?
Activin A Protein has a total Mw of 14 kDa.
What is the source or expression system of Activin B Protein?
Nicotinia

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

What is the Biological Activity of Activin B Protein?
The biological activity of Activin B is measured by its ability to inhibit mouse plasmacytoma cell line (MPC-11) cells proliferation. EC50 <5ng/ml is required to stimulate a half-maximal response at cytokine saturation. Note: Since applications vary, each investigator should titrate the reagent to obtain optimal results.

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

What is the amino acid sequence of ACTIVIN B Protein?
HHHHHHHHHH GLECDGRTNL CCRQQFFIDF RLIGWNDWII APTGYYGNYC EGSCPAYLAG VPGSASSFHT AVVNQYRMRG LNPGTVNSCC IPTKLSTMSM LYFDDEYNIV KRDVPNMIVE ECG

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

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:

IFN-alpha 7 Human Recombinant

IFN alpha-7, IFN-alpha-7, IFN alpha-J, LeIF J, IFN alpha-J1, IFN-alpha-J1, IFNA7, IFNA-J, IFN-alphaJ.

Product # :

CYT-196

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SDS-PAGE

Description

IFNA7 Human Recombinant produced in E.Coli is a single, non-glycosylated polypeptide chain containing 191 amino acids (24-189 a.a) and having a molecular mass of 22.3kDa.IFNA7 is fused to a 25 amino acid His-tag at N-terminus & purified by proprietary chromatographic techniques.

Source

E.coli.

Formulation

IFNA7 protein solution (0.5mg/ml) containing 20mM Tris-HCl buffer (pH 8.0), 0.4M urea and 10% glycerol.

Purity

Greater than 90% as determined by SDS-PAGE.

SDS-PAGE

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Introduction
IFN alpha 7 (IFNA7) is a member of the alpha/beta IFN family. IFNA7 is generated by macrophages. IFN-alpha has antiviral functions. IFN promotes the production of 2 enzymes: a protein kinase and an oligoadenylate synthetase.
Synonyms
IFN alpha-7, IFN-alpha-7, IFN alpha-J, LeIF J, IFN alpha-J1, IFN-alpha-J1, IFNA7, IFNA-J, IFN-alphaJ.
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 MGSHMCDLPQ THSLRNRRAL ILLAQMGRIS PFSCLKDRHE FRFPEEEFDG HQFQKTQAIS VLHEMIQQTF NLFSTEDSSA AWEQSLLEKF STELYQQLND LEACVIQEVG VEETPLMNED FILAVRKYFQ RITLYLMEKK YSPCAWEVVR AEIMRSFSFS TNLKKGLRRK D.
Background
What is the molecular weight/Mw of IFNA7 HUMAN Protein?
IFNA7 HUMAN Protein has a total Mw of 22.3kDa.

What is the source or expression system of IFNA7 HUMAN Protein?
Escherichia Coli.

What is the Purity of IFNA7 HUMAN Protein?
IFNA7 HUMAN Protein is >90% pure as determined by SDS-PAGE.

What is the Biological Activity of IFNA7 HUMAN Protein?
The biological functionality of IFNA7 HUMAN Protein will be determined in the future.

What is the amino acid sequence of IFNA7 HUMAN Protein?
MGSSHHHHHH SSGLVPRGSH MGSHMCDLPQ THSLRNRRAL ILLAQMGRIS PFSCLKDRHE FRFPEEEFDG HQFQKTQAIS VLHEMIQQTF NLFSTEDSSA AWEQSLLEKF STELYQQLND LEACVIQEVG VEETPLMNED FILAVRKYFQ RITLYLMEKK YSPCAWEVVR AEIMRSFSFS TNLKKGLRRK D.
What applications can IFNA7 HUMAN Protein be used in?
IFNA7 HUMAN Protein can probably be used in western blot, ELISA and Lateral Flow.

What is the endotoxin level for IFNA7 HUMAN Protein?
The endotoxin level is minimal, IFNA7 HUMAN 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:

Stress-Induced Protein SAM22 Recombinant

Stress-induced protein SAM22, Starvation-associated message 22, Gly m 4.

Product # :

PRO-2278

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Description

Recombinant Stress-Induced Protein SAM22 produced in SF9 is a glycosylated, polypeptide chain having a calculated molecular mass of 19,484 Dalton. Gly m 4.0101 is expressed with a 10xHis tag at N-terminus and purified by proprietary chromatographic techniques.

Source

Sf9 insect cells.

Formulation

Gly m 4.0101 is supplied in in 20mM HEPES buffer pH-7.9 and 6M Urea.

Purity

Greater than 80.0% as determined by SDS-PAGE.

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Introduction
Stress-Induced Protein SAM22 (Gly m 4.0101) causes an allergic reaction in humans. Gly m 4 is the main soy allergen for patients allergic to birch pollen with soy allergy.
Synonyms
Stress-induced protein SAM22, Starvation-associated message 22, Gly m 4.
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 IgE type human antibodies. 2. Immunodot test with positive/negative sera panels.

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:

Influenza-B Virus Victoria/504/00

Product # :

IHA-018

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Description

Allantoic fluid of 10 days old embryonated eggs, inoculated with influenza B virus, strain B/Victoria/504/00. The Influenza B Virus was purified by Ultracentrifugation with 10-40 % sucrose gradient.

Formulation

The B/ Victoria /53/99 solution contains STE, 0.1% sodium azide (NaN3) and 0.005% thimerosal.

Purity

Greater than 90.0% as determined by SDS-PAGE.

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Introduction
Influenzavirus B is a genus in the virusfamily Orthomyxoviridae. The only species in this genus is called "Influenza B virus". Influenza B virus only infects humansand seals. This limited host range is apparently in contrast with those caused by the similar Influenza virus Aas both mutate by both genetic drift and reassortment. Influenza-B virus evolves slower than A viruses and faster than C viruses. Influenza-B virus mutates at a rate 2-3 times lower than type A. However, influenza B mutates enough that lasting immunity is not possible. The Influenza B virus capsidis enveloped while its virionconsists of a matrix protein + envelope + nucleoprotein complex + nucleocapsid, and a polymerasecomplex. Influenza B is sometimes spherical and sometimes filamentous. Its 500 or so surface projections are made of hemagglutinin and neuraminidase.
The Influenza B virus is 14648 nucleotideslong and consists of eight segments of linear negative-sense, single-stranded RNA. The multipartite genome is encapsidated, each segment in a separate nucleocapsid, and the nucleocapsids are surrounded by one envelope.
Physical Appearance
Sterile Filtered colorless solution.
Stability
B/Victoria/504/00 although stable 4°C for 4 weeks, should be stored below -18°C. Please prevent freeze-thaw cycles.
Applications
Serological studies of influenza B virus, immunogen for antibody production.
Inactivation
Thimerosal and beta propiolactone treatmentThis product has been treated in a manner consistent with methods of inactivation. Generally accepted good laboratory practices appropriate to microbiological/viral safe handling practices and techniques are required at work.
Immunological Activity
Tested with anti-influenza B monoclonal antibodies in ELISA.
Note
Contains thimerosal (0.005%) and sodium azide (0.1%) as preservative. Although the amounts are very small, appropriate care must be taken when handling this product.

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:

Interleukin-1 beta Mouse Recombinant

Catabolin, Lymphocyte-activating factor (LAF), Endogenous Pyrogen (EP), Leukocyte Endogenous Mediator (LEM), Mononuclear Cell Factor (MCF), IL1F2, IL-1 beta.

Product # :

CYT-273

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Description

Interleukin-1 beta Mouse Recombinant produced in E.Coli is a non-glycosylated, Polypeptide chain containing 153 amino acids and having a molecular mass of 17500 Dalton. The IL-1b is purified by proprietary chromatographic techniques.

Source

Escherichia Coli.

Formulation

Mouse IL-1b was lyophilized from a sterile filtered aqueous solution in 10mM sodium phosphate, pH 7.5.

Purity

Greater than 95.0% as determined by SDS-PAGE.

Biological Activity

The activity as determined by the dose-dependent proliferation of mouse D10S cells is 0.9-1.3pg/ml, corresponding to a Specific Activity of 1.1 x 10⁶ Units/mg.

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Introduction
Interleukin-1b is produced by activated macrophages, IL-1B stimulates thymocyte proliferation by inducing il-2 release, b-cell maturation and proliferation, and fibroblast growth factor activity. IL1B proteins are involved in the inflammatory response, being identified as endogenous pyrogens, and are reported to stimulate the release of prostaglandin from synovial cells.
Synonyms
Catabolin, Lymphocyte-activating factor (LAF), Endogenous Pyrogen (EP), Leukocyte Endogenous Mediator (LEM), Mononuclear Cell Factor (MCF), IL1F2, IL-1 beta.
Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
Stability
Lyophilized Interleukin-1b although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution IL1b 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 Interleukin-1b in sterile 18MΩ-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.
Amino Acid Sequence
MVPIRQLHYR LRDEQQKSLV LSDPYELKAL HLNGQNINQQ VIFSMSFVQGEPSNDKIPVA LGLKGKNLYL SCVMKDGTPT LQLESVDPKQ YPKKKMEKRFVFNKIEVKSK VEFESAEFPN WYISTSQAEH KPVFLGNNSG QDIIDFTMES VSS.

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:

Interleukin 1 Family, Member 10 Human Recombinant, His Tag

Interleukin-1 family member 10, IL-1F10, FIL1 theta, Interleukin-1 HY2, IL-1HY2, Interleukin-1 theta, IL-1 theta, IL1F10, FIL1T, IL1HY2, FKSG75, MGC119831, MGC119832, MGC119833, FIL1-theta.

Product # :

CYT-783

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Description

IL1F10 Human Recombinant produced in E.coli is a single, non-glycosylated polypeptide chain containing 172 amino acids (1-152) and having a molecular mass of 19.1kDa.IL1F10 is fused to a 20 amino acid His-tag at N-terminus & purified by proprietary chromatographic techniques.

Source

Escherichia Coli.

Formulation

The IL1F10 solution contains 20mM Tris-HCl buffer (pH 8.0), 0.15M NaCl, 1mM DTT and 20% glycerol.

Purity

Greater than 85% as determined by SDS-PAGE.

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Introduction
Human interleukin family 1, member 10 (IL1F10) belongs to the interleukin 1 cytokine family. IL1F10 is expressed in the fetal skin, spleen and tonsil, generally in the basal epithelia of skin and in proliferating B-cells of the tonsil. IL1F10 binds soluble IL1 receptor type 1 and may be implicated in the regulation of adapted and innate immune responses.
Synonyms
Interleukin-1 family member 10, IL-1F10, FIL1 theta, Interleukin-1 HY2, IL-1HY2, Interleukin-1 theta, IL-1 theta, IL1F10, FIL1T, IL1HY2, FKSG75, MGC119831, MGC119832, MGC119833, FIL1-theta.
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 MCSLPMARYY IIKYADQKAL YTRDGQLLVG DPVADNCCAE KICTLPNRGL DRTKVPIFLG IQGGSRCLAC VETEEGPSLQ LEDVNIEELY KGGEEATRFT FFQSSSGSAF RLEAAAWPGW FLCGPAEPQQ PVQLTKESEP SARTKFYFEQ SW

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 Quadruple Antagonist Pegylated Human Recombinant

Product # :

CYT-1251

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Description

Leptin Pegylated Quadruple Antagonist Human Recombinant is a single non-glycosilated polypeptide chain containing 146 amino and an additional Ala at N-terminus acids. The Human Leptin antagonist is bound to 20 kDa mono-PEG at N-terminus, resulting in 35.6 kDa. The Human Leptin Pegylated Quadruple Antagonist was mutated, resulting in D23L/L39A/D40A/F41A that was purified by proprietary chromatographic techniques.

Source

Escherichia coli.

Formulation

The Human Leptin Pegylated Quadruple Antagonist was lyophilized from a concentrated (0.65mg/ml) solution with 0.003mM NaHCO3.

Purity

Greater than 98.0% as determined by:

(a) Gel filtration analysis.

(b) Analysis by SDS-PAGE.

Biological Activity

Human Leptin Pegylated Quadruple Antagonist inhibits leptin-induced proliferation of BAF/3 cells stably transfected with the long form of human leptin receptor. Its in vitro activity is 6-8 fold lower than the non-pegylated human leptin antagonist but in vivo it has profound weight gain effect (as compared to the non-pegylated human leptin antagonist), resulting mainly from increased food intake. The in vivo activity of human pegylated super leptin antagonist was compared to that of human pegylated leptin antagonist is 9-27 fold higher.

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Physical Appearance
White lyophilized (freeze-dried) powder.
Stability
Lyophilized Human Leptin Pegylated Quadruple Antagonist although stable at room temperature for several weeks, should be stored desiccated below -18°C. Upon reconstitution at > 0.1 and up to 2mM of Human pegylated leptin antagonist and filter sterilization Human pegylated leptin antagonist can be stored at 4°C or even room temperature for several weeks making it suitable for long term infusion studies using osmotic pumps. At lower concentration addition of a carrier protein (0.1% HSA or BSA) is suggested. Please prevent freeze-thaw cycles.
Solubility
It is recommended to reconstitute the lyophilized Human Leptin Pegylated Quadruple Antagonist in sterile water or sterile 0.4% NaHCO3 adjusted to pH 8-9, not less than 100µg/ml, which can then be further diluted with other aqueous solutions.
Background
Leptin is a~16 kDa protein which is encoded by the obese gene. Leptin is a hormone which participates in regulating body weight, reproductive function and metabolism. leptin is expressed predominantly by adipocytes, which supports the idea that body weight is sensed as the total mass of fat in the body. Smaller amounts of leptin are also secreted by cellsin the epithelium of the stomach and in the placenta. Leptin receptors are highly expressed in areas of the hypothalamus which regulates body weight, as well as in T lymphocytes and vascular endothelial cells.
Protein content
Protein quantization was carried out by UV spectroscopy at 280 nm using the absorbency value of 0.88 as the extinction coefficient for a 0.1% (1mg/ml) solution at pH 8.0. This value is calculated by the PC GENE computer analysis program of protein sequences (IntelliGenetics).

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:

Alpha-1 Antitrypsin, Active Human Recombinant

Alpha-1-antitrypsin, Alpha-1 protease inhibitor, Alpha-1-antiproteinase, SERPINA1, A1AT, PI, A1A, AAT, PI1, MGC9222, PRO2275, MGC23330.

Product # :

PRO-907

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Description

SERPINA1 Human Recombinant produced in rice is a single, non-glycosylated polypeptide chain containing 384 amino acids and having a molecular mass of 43.1 kDa.The SERPINA1 protein is purified by proprietary chromatographic techniques.

Source

Rice Grain (Oryza Sativa).

Formulation

SERPINA1 was lyophilized from a concentrated solution containing recombinant Albumin.

Purity

Greater than 95% as determined by SDS-PAGE.

Biological Activity

3~5 mg SERPINA1 will inhibit 1 mg PPE with an activity of 10.8 units per mg protein

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Introduction
SERPINA1 is secreted and is a serine protease inhibitor which its targets include elastase, plasmin, collagenase, leucocytic proteases, trypsin, chymotrypsin, and plasminogen activator. Defects in SERPINA1 gene can cause emphysema or liver disease. SERPINA1 is an endogenous inhibitor of serine proteases and inhibits the catalytic domain of human recombinant matriptase in vitro. Rise in SERPINA1 occurs as an acute phase response to tissue necrosis and inflammation. mutations in SERPINA1 and SLC11A1 genes change the balance between elastase produced by leukocytes during phagocytosis.
Synonyms
Alpha-1-antitrypsin, Alpha-1 protease inhibitor, Alpha-1-antiproteinase, SERPINA1, A1AT, PI, A1A, AAT, PI1, MGC9222, PRO2275, MGC23330.
Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
Stability
Lyophilized SERPINA1 although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution SERPINA1 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 SERPINA1 in sterile 18M-cm H2O 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:

Interferon-alpha 2c Human Recombinant

Interferon alpha-2, IFN-alpha-2, Interferon alpha-A, LeIF A, IFNA2, IFNA2A, IFNA2B, IFNA2C.

Product # :

CYT-1117

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Description

Interferon-alpha 2c Recombinant Human produced in yeast is a single, glycosylated polypeptide chain containing 165 amino acids and having a molecular mass of 19.3kDa. The IFNA2C is purified by proprietary chromatographic techniques.

Source

Saccharomyces cerevisiae.

Formulation

Lyophilized from a 0.2μm filtered concentrated solution in PBS, pH 7.4 and 0.02 % Tween-20.

Purity

Greater than 97.0% as determined by:
(a) Analysis by RP-HPLC.
(b) Analysis by SDS-PAGE.

Biological Activity

The activity is determined by the cytopathic effect inhibition assay.

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Introduction
IFN-alpha is produced by macrophages and has antiviral activities. IFN stimulates the production of two enzymes: protein kinase and an oligoadenylate synthetase.
Synonyms
Interferon alpha-2, IFN-alpha-2, Interferon alpha-A, LeIF A, IFNA2, IFNA2A, IFNA2B, IFNA2C.
Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
Stability
Lyophilized IFNA2C although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution Interferon-alpha 2c 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 Interferon-alpha 2c in sterile 18MΩ-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.
Amino Acid Sequence
CDLPQTHSLG SRRTLMLLAQ MRRISLFSCL KDRRDFGFPQ EEFGNQFQKA ETIPVLHEMI QQIFNLFSTK DSSAAWDETL LDKFYTELYQ QLNDLEACVI QGVGVTETPL MKEDSILAVR KYFQRITLYL KEKKYSPCAW EVVRAEIMRS FSLSTNLQES LRSKE.
Background
What is the molecular weight/Mw of IFNA2C HUMAN Protein?
IFNA2C HUMAN Protein has a total Mw of 19.3kDa.

What is the source or expression system of IFNA2C HUMAN Protein?
Saccharomyces cerevisiae.

What is the Purity of IFNA2C HUMAN Protein?
IFNA2C HUMAN Protein is >97% pure as determined by SDS-PAGE.

What is the Biological Activity of IFNA2C HUMAN Protein?
The activity is determined by the cytopathic effect inhibition assay.

What is the amino acid sequence of IFNA2C HUMAN Protein?
CDLPQTHSLG SRRTLMLLAQ MRRISLFSCL KDRRDFGFPQ EEFGNQFQKA ETIPVLHEMI QQIFNLFSTK DSSAAWDETL LDKFYTELYQ QLNDLEACVI QGVGVTETPL MKEDSILAVR KYFQRITLYL KEKKYSPCAW EVVRAEIMRS FSLSTNLQES LRSKE.

What applications can IFNA2C HUMAN Protein be used in?
IFNA2C HUMAN Protein can probably be used in western blot, ELISA and Lateral Flow.

What is the endotoxin level for IFNA2C HUMAN Protein?
The endotoxin level is minimal, IFNA2C HUMAN 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:

Leptin Human Recombinant, PEG

OB Protein, Obesity Protein, OBS, Obesity factor.

Product # :

CYT-1108

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Quantity :

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Description

Pegylated Leptin Human Recombinant produced in E.Coli is a single non-glycosilated polypeptide chain containing 146 amino acids, an additional Ala at N-terminus and one molecule of PEG 20 kDa at its N-terminus acids and having a molecular weight of 35.6kDa. However due to enlarged hydrodymanic volume it runs on the SDS-PAGE as 48 kDa protein and in gel-filtration on Superdex 200 as over 100 kDa protein. Pegylated Leptin Human Recombinant was purified by proprietary chromatographic techniques.

Source

Escherichia Coli.

Formulation

Lyophilized from a concentrated (1mg/ml) solution with 0.0045mM NaHCO3.

Purity

Greater than 98.0% as determined by:
(a) Gel filtration analysis.
(b) Analysis by SDS-PAGE.

Biological Activity

Biological Activity is < than 0.1% as determined by inducing proliferation of BAF/3 cells stably transfected with the long form of human leptin receptor. It’s in vitro activity is 5-7 fold lower than the non-pegylated recombinant human leptin but in vivo it has profound weight reducing effect, resulting mainly from reduced food intake.

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Introduction
Leptin takes an important part in the regulation of energy balance and body weight control.After entering the circulation, Leptin binds LEPRwhich results in the activation of several major signalling pathways. In the hypothalamus Leptin acts as an appetite-regulating factor that induces a decrease in food intake and an increase in energy consumption and also regulates bone mass and secretion of hypothalamo-pituitary-adrenal hormones. In the periphery, increases basal metabolism, regulates pancreatic beta-cell function and insulin secretion and affects innate and adaptive immunity.
Synonyms
OB Protein, Obesity Protein, OBS, Obesity factor.
Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
Stability
Lyophilized Pegylated leptin although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution leptin N82K 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 Pegylated leptin in sterile water or 0.4% NaHCO3 adjusted to pH 8-9, not less than 100µg/ml, which can then be further diluted to other aqueous solutions.
Protein content
Protein quantitation was carried out by UV spectroscopy at 280 nm using the absorbency value of 0.87 as the extinction coefficient for a 0.1% (1mg/ml) solution at pH 8.0. This value is calculated by the PC GENE computer analysis program of protein sequences (IntelliGenetics).

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:

H3N2 Influenza A- Virus Switzerland 2013 Recombinant

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Description

Recombinant Full-Length H3N2 Switzerland 2013 is glycosylated with N-linked sugars, produced using baculovirus vectors in insect cells.

Source

Baculovirus Insect Cells.

Formulation

The Recombinant H3N2 A/ Switzerland 2013 solution contains 10mM Sodium phosphate, pH 7.1,150mM NaCl and 0.005% Tween-20.

Purity

Greater than 90.0% as determined by SDS-PAGE.

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Introduction
H3N2 is a subtype of the influenza A virus. Its name derives from the forms of the two kinds of proteinson the surface of its coat, hemagglutinin(H) and neuraminidase(N). H3N2 exchanges genes for internal proteins with other influenza subtypes. H3N2 has tended to dominate in prevalence over H1N1, H1N2, and influenza B. H3N2 strain descended from H2N2 by antigenic shift, in which genes from multiple subtypes re-assorted to form a new virus. Both the H2N2and H3N2 strains contained genesfrom avian influenzaviruses.
Physical Appearance
Sterile Filtered colorless solution.
Stability
H3N2 A/ Switzerland 2013 recombinant should be stored at 4°C. Do not freeze!

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:

Hexokinase-4 Human Recombinant, Active

Glucokinase, Glucokinase (Hexokinase 4), Hexokinase Type IV, HK IV, HK4, Maturity Onset Diabetes of The Young 2, ATP:D-Hexose 6-Phosphotransferase, Hexokinase D, Pancreatic Isozyme, Hexokinase-4, Hexokinase-D, Hexokinase 4.

Product # :

PKA-116

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Description

GCK Human Recombinant produced in E.Coli is a single, non-glycosylated polypeptide chain containing 485 amino acids (1-465 a.a) and having a molecular mass of 54.3kDa. GCK is fused to a 20 amino acid His-tag at N-terminus & purified by proprietary chromatographic techniques.

Source

Escherichia Coli.

Formulation

GCK protein solution (1mg/ml) contains 20 mM Tris-HCl buffer (pH 8.0) and 10% glycerol.

Purity

Greater than 95% as determined by SDS-PAGE.

Biological Activity

Specific activity is > 2,000 pmol/min/ug. One unit will convert 1 pmoles of D-Glucose to D-Glucose-6-phosphate per minute at pH8.0 at 37C.

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Introduction
GCK is an enzyme that expedite the formation of glucose-6-phosphate for glucose by phosphorylation. Humans and other vertebrates have GCK in the cells of the pancreas and liver. In both organs, the enzyme has an important role in carbohydrate metabolism regulation by sensing sugar levels and acting according to the change in glucose levels, that can rise after a meal or fall during fasting. Mutations in the gene that codes for this enzyme can cause hypoglycemia or diabetes.
.
Synonyms
Glucokinase, Glucokinase (Hexokinase 4), Hexokinase Type IV, HK IV, HK4, Maturity Onset Diabetes of The Young 2, ATP:D-Hexose 6-Phosphotransferase, Hexokinase D, Pancreatic Isozyme, Hexokinase-4, Hexokinase-D, Hexokinase 4.
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 MLDDRARMEA AKKEKVEQIL AEFQLQEEDL KKVMRRMQKE MDRGLRLETH EEASVKMLPT YVRSTPEGSE VGDFLSLDLG GTNFRVMLVK VGEGEEGQWS VKTKHQMYSI PEDAMTGTAE MLFDYISECI SDFLDKHQMK HKKLPLGFTF SFPVRHEDID KGILLNWTKG FKASGAEGNN VVGLLRDAIK RRGDFEMDVV AMVNDTVATM ISCYYEDHQC EVGMIVGTGC NACYMEEMQN VELVEGDEGR MCVNTEWGAF GDSGELDEFL LEYDRLVDES SANPGQQLYE KLIGGKYMGE LVRLVLLRLV DENLLFHGEA SEQLRTRGAF ETRFVSQVES DTGDRKQIYN ILSTLGLRPS TTDCDIVRRA CESVSTRAAH MCSAGLAGVI NRMRESRSED VMRITVGVDG SVYKLHPSFK ERFHASVRRL TPSCEITFIE SEEGSGRGAA LVSAVACKKA CMLGQ.

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:

Der F1 Mosaic Protein Recombinant

Product # :

ALR-004

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Description

The E.Coli derived recombinant protein contains the Dermatophagoides farina Der F1 full length protein (a.a. 1-320) and fused to a 6 His Tag at C-terminus, having a total Mw of 36kDa, pI 5.88.

Source

E.Coli.

Formulation

60mM NaCl, 50mM Tris-HCl pH 8.0 and 1.2M Urea.

Purity

Protein is >95% pure as determined by 10% PAGE (coomassie staining) and RP-HPLC.

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Introduction
DERF1 is a thiol protease that hydrolyzes proteins, with a preference for Phe or basic residues. DERF1 is a C1 peptidase family member. DERF1 has extensive endopeptidase specificity. DERF1 causes an allergic reaction in humans. Common symptoms of mite allergy are bronchial asthma, allergic rhinitis and conjunctivitis.
Physical Appearance
Sterile filtered colorless solution.
Stability
Der F1 although stable at 4°C for 1 week, should be stored below -18°C. Please prevent freeze thaw cycles.
Purification Method
Purified by proprietary chromatographic technique.

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 (64-110) Human Recombinant

Cysteine-rich secreted protein FIZZ3, Adipose tissue-specific secretory factor, ADSF.

Product # :

CYT-1232

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Description

The Resistin Human is created as a recombinant protein with a 4kda N-terminal fusion of His Tag. The Resistin His-Tagged Fusion Protein, produced in E. coli, is a 12kDa protein containing 47 amino acid residues of the Resistin Human, 64-110 amino acids.

Source

Escherichia Coli.

Formulation

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

Purity

Greater than 80% as determined by SDS-PAGE.

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Synonyms
Cysteine-rich secreted protein FIZZ3, Adipose tissue-specific secretory factor, ADSF.
Physical Appearance
Filtered White lyophilized (freeze-dried) powder.
Stability
Store lyophilized Resistin 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
Human resistin is an adipokine primarily secreted by adipose tissue, mainly in response to obesity and inflammatory conditions.
Resistin Function
Resistin takes part in insulin resistance, which can be the cause of the development of type 2 diabetes. Resistin can also affect glucose metabolism and insulin signalling.
Regulation
Levels of resistin are influenced by factors such as inflammation, obesity and certain hormones. It tends to increase in conditions associated with obesity and metabolic syndrome.
Clinical Relevance
Elevated levels of resistin have been associated with obesity-related conditions, cardiovascular diseases, and metabolic disorders. Resisting is considered as a potential biomarker for these conditions.
Resistin Mechanism
Resistin promotes insulin resistance through different pathways such as the modulation of inflammatory processes and the inhibition of insulin signaling in target tissues like liver and muscle.
Research
Ongoing studies are exploring resistin’s role in metabolic regulation, the exact mechanisms of action of resistin and its potential as a therapeutic target for treating metabolic diseases.
Overall, resistin is a critical factor in metabolic health, mainly in the context of diabetes and obesity.

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:

Interleukin-6 Signal Transducer Human Recombinant

Interleukin 6 signal transducer, oncostatin M receptor, IL6ST, CD130, CDw130, GP130, GP130-RAPS, IL6R-beta

Product # :

CYT-1156

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Description

IL6ST Human produced in Sf9 Baculovirus cells is a single, glycosylated polypeptide chain containing 605 amino acids (23-619 a.a) and having a molecular mass of 68.9kDa.IL6ST is fused to an 8 amino acid His tag at C-terminus and purified by proprietary chromatographic techniques.

Source

Sf9, Baculovirus cells.

Formulation

The IL6ST solution (0.25mg/ml) contains 10% Glycerol and Phosphate-Buffered Saline (pH 7.4).

Purity

Greater than 95% as determined by SDS-PAGE.

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Introduction
Interleukin-6 Signal Transducer or IL6ST is a receptor, part of the family of class 1 cytokine receptor. IL6ST binds to IL-6 through membrane-anchored or soluble IL-6R starts a connection between another complex of IL6ST and IL-6 , thus forming a homo-dimer and a signal transduction occurs.
Synonyms
Interleukin 6 signal transducer, oncostatin M receptor, IL6ST, CD130, CDw130, GP130, GP130-RAPS, IL6R-beta
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
ELLDPCGYIS PESPVVQLHS NFTAVCVLKE KCMDYFHVNA NYIVWKTNHF TIPKEQYTII NRTASSVTFT DIASLNIQLT CNILTFGQLE QNVYGITIIS GLPPEKPKNL SCIVNEGKKM RCEWDRGRET HLETNFTLKS EWATHKFADC KAKRDTPTSC TVDYSTVYFV NIEVWVEAEN ALGKVTSDHI NFDPVYKVKP NPPHNLSVIN SEELSSILKL TWTNPSIKSV IILKYNIQYR TKDASTWSQI PPEDTASTRS SFTVQDLKPF TEYVFRIRCM KEDGKGYWSD WSEEASGITY EDRPSKAPSF WYKIDPSHTQ GYRTVQLVWK TLPPFEANGK ILDYEVTLTR WKSHLQNYTV NATKLTVNLT NDRYVATLTV RNLVGKSDAA VLTIPACDFQ ATHPVMDLKA FPKDNMLWVE WTTPRESVKK YILEWCVLSD KAPCITDWQQ EDGTVHRTYL RGNLAESKCY LITVTPVYAD GPGSPESIKA YLKQAPPSKG PTVRTKKVGK NEAVLEWDQL PVDVQNGFIR NYTIFYRTII GNETAVNVDS SHTEYTLSSL TSDTLYMVRM AAYTDEGGKD GPEFTFTTPK FAQGEIELEH HHHHH
Background
Significance of Human Recombinant Interleukin-6 Signal Transducer: Insights and Implications
Abstract:
The Interleukin-6 (IL-6) signal transducer holds a pivotal role in the complex IL-6 signaling pathway, orchestrating crucial cellular responses. This paper delves into the significance of Human Recombinant IL-6 Signal Transducer in unraveling IL-6-mediated cellular communication and highlights its potential applications in research and therapeutic development. The review sheds light on the methodology of producing this transducer and its relevance in advancing our understanding of cytokine signaling.
Introduction:
IL-6, a pleiotropic cytokine, is known to exert its diverse effects through a complex signaling cascade, wherein the signal transducer plays a crucial role. The availability of Human Recombinant IL-6 Signal Transducer enables the investigation of its role in health and disease. This transducer is vital for transmitting IL-6 signals, influencing processes like immune response, inflammation, and cell differentiation.
IL-6 Signal Transduction Pathway:
The IL-6 signal transduction pathway involves binding of IL-6 to its receptor, leading to the recruitment of the signal transducer and subsequent activation of downstream signaling molecules such as JAK/STAT pathway. This orchestrated response modulates gene expression, thereby impacting cellular behavior.
Methods of Production:
Human Recombinant IL-6 Signal Transducer is produced by expressing the corresponding gene in a suitable expression system, often utilizing bacterial or mammalian cells. Proper post-translational modifications are necessary to ensure its biological activity and appropriate functioning within the signaling cascade.
Applications in Research:
Human Recombinant IL-6 Signal Transducer serves as a fundamental tool in elucidating IL-6-mediated signaling mechanisms. Its availability facilitates the exploration of how aberrant signaling contributes to diseases such as autoimmune disorders, inflammatory conditions, and certain cancers. The transducer's interaction with other signaling pathways is also of interest for comprehensive pathway analysis.
Therapeutic Implications:
Understanding the IL-6 signal transduction pathway has led to the development of targeted therapies for IL-6-related diseases. Modulation of this pathway presents potential opportunities for novel therapeutic interventions, thereby offering a new dimension in precision medicine.
Challenges and Future Directions:
While the availability of Human Recombinant IL-6 Signal Transducer has significantly advanced our knowledge, challenges remain in deciphering the intricate nuances of IL-6 signaling. Developing strategies to selectively intervene in this pathway without disturbing physiological homeostasis presents an ongoing challenge.
Conclusion:
The Human Recombinant IL-6 Signal Transducer serves as a cornerstone in unraveling the complexities of IL-6 signaling, shedding light on its roles in health and disease. Its applications span from fundamental research to therapeutic development, showcasing its potential to shape the future of precision medicine.

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Description:

HIV-1 Envelope Recombinant

Product # :

HIV-101

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Description

HIV-1 envelope is an E.coli-derived recombinant protein that composes all of the reported immunogenic determinants found in gp41 and a small portion of gp120. The gene encoding this fusion protein was synthesized using codons optimized for E.coli expression and doesn’t represent a linear HIV-1 envelope sequence. HIV-1 is a non-glycosylated, 233 amino acid polypeptide chain, having a molecular mass of 27275.88 dalton and pI=9.68. HIV-1 envelope protein spans the C-Terminus of gp120 and most of gp41. Superior diagnostic reagent for HIV-1 and HIV type-O detection. Detects all HIV-1 and HIV-type O infected individuals responding to envelope proteins.

Source

Escherichia Coli.

Formulation

The HIV-1 contains 0.5X PBS & 6M urea.

Purity

Greater than 95.0% as determined by HPLC analysis and SDS-PAGE.

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Introduction
Human immunodeficiency virus (HIV) is a retrovirusthat can lead to a condition in which the immune systembegins to fail, leading to opportunistic infections. HIV primarily infects vital cells in the humanimmune systemsuch as helper T cells(specifically CD4+ T cells), macrophagesand dendritic cells. HIV infection leads to low levels of CD4+ T cells through three main mechanisms: firstly, direct viral killing of infected cells; secondly, increased rates of apoptosisin infected cells; and thirdly, killing of infected CD4+ T cells by CD8 cytotoxic lymphocytesthat recognize infected cells. When CD4+ T cell numbers decline below a critical level, cell-mediated immunityis lost, and the body becomes progressively more susceptible to opportunistic infections. HIV was classified as a member of the genus Lentivirus, part of the family of Retroviridae. Lentiviruses have many common morphologies and biological properties. Many species are infected by lentiviruses, which are characteristically responsible for long-duration illnesses with a long incubation period. Lentiviruses are transmitted as single-stranded, positive-sense, enveloped RNA viruses. Upon entry of the target cell, the viral RNA genomeis converted to double-stranded DNAby a virally encoded reverse transcriptasethat is present in the virus particle. This viral DNA is then integrated into the cellular DNA by a virally encoded integraseso that the genome can be transcribed. Once the virus has infected the cell, two pathways are possible: either the virus becomes latentand the infected cell continues to function, or the virus becomes active and replicates, and a large number of virus particles are liberated that can then infect other cells.
Physical Appearance
Sterile filtered colorless clear solution.
Stability
HIV-1 Envelope although stable at 4°C for 1 week, should be stored below -18°C. Please prevent freeze thaw cycles.
Applications
HIV-1 Envelope antigen is suitable for ELISA and Western blots, excellent antigen for early detection of HIV seroconvertors with minimal specificity problems.
Specificity
Immunoreactive with all sera of HIV-1 and HIV-type O infected individuals and with 60-80% of HIV-2 infected individuals.

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:

Chromogranin-A, Mouse Anti Human

CGA, CHGA, Vasostatin-2, Pituitary secretory protein I, SP-I.

Product # :

ANT-351

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Formulation

1mg/ml containing PBS, pH-7.4, & 0.1% Sodium Azide.

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Introduction
Chromgranin-A is part of the neuroendocrine secretory protein family. CHGA is located in secretory vesicles of neurons and endocrine cells. Chromgranin-A is a precursor to three biologically active peptides; vasostatin, pancreastatin, and parastatin. These peptides act as autocrine or paracrine negative modulators of the neuroendocrine system. Other peptides, including chromostatin, beta-granin, WE-14 and GE-25, are also derived from the full-length protein. Chromgranin-A has numerous biological activities on some tissues and organs and exerts a large spectrum of homeostatic actions, including antifungal and antimicrobial effect, modulation of cell adhesion, and inhibition of parathyroid hormone secretion.
Synonyms
CGA, CHGA, Vasostatin-2, Pituitary secretory protein I, SP-I.
Physical Appearance
Sterile Filtered colorless solution.
Immunogen
Anti-human CHGA mAb is derived from hybridization of mouse F0 myeloma cells with spleen cells from BALB/c mice immunized with recombinant human CHGA amino acids 19-131 purified from E. coli.
Ig Subclass
Mouse IgG1 heavy chain and κ light chain.
Clone
P3A5AT.
Applications
CHGA antibody has been tested by ELISA, Western blot and immunohistochemistry analysis to assure specificity and reactivity. Since application varies, however, each investigation should be titrated by the reagent to obtain optimal results. Recommended dilution range for Western blot is 1:500 ~ 1:1,000 and immunohistochemistry analysis is 1:100~200. Recommended starting dilution for Western blot is 1:500 and Immunohistochemistry is 1:100.
Type
Mouse Anti Human Monoclonal.
Storage Procedures
For periods up to 1 month store at 4°C, for longer periods of time, store at -20°C. Prevent freeze thaw cycles.
Purification Method
CHGA antibody was purified from mouse ascitic fluids by protein-G affinity chromatography.

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:

Somatostatin

Growth hormone release-inhibiting factor, SST, SMS, SMST, GHIH.

Product # :

HOR-299

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Description

Somatostatin Synthetic is a single, non-glycosylated polypeptide chain containing 14 amino acids, having a molecular mass of 1637.9 Dalton and a Molecular formula of C76H104N18O19S2. The CAS# is 38916-34-6.

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
Somatostatin (also known as growth hormone inhibiting hormone (GHIH) or somatotropin release-inhibiting hormone (SRIF) is a peptide hormone that regulates the endocrine systemand affects neurotransmission and cell proliferation via interaction with G-protein-coupled somatostatin receptors and inhibition of the release of numerous secondary hormones. Somatostatin has two active forms produced by alternative cleavage of a single preproprotein: one of 14 amino acids, the other of 28 amino acids.
Synonyms
Growth hormone release-inhibiting factor, SST, SMS, SMST, GHIH.
Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
Stability
Lyophilized SST although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution Somatostatin 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 Somatostatin in sterile 18MΩ-cm H2O not less than 100 µg/ml, which can then be further diluted to other aqueous solutions.
Amino Acid Sequence
Ala-Gly-Cys-Lys-Asn-Phe- Phe-Trp-Lys-Thr-Phe-Thr-Ser-Cys-OH.

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:

Interleukin-2 Human Recombinant, Yeast

Interleukin-2, T-cell growth factor (TCGF), Interleukin-2, Lymphokine, IL-2.

Product # :

CYT-797

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Description

Interleukin-2 Human Recombinant produced in yeast is a single, glycosylated polypeptide chain containing 134 amino acids and having a molecular mass of 14 kDa. The IL-2 is purified by proprietary chromatographic techniques.

Source

Pichia pastoris.

Formulation

The protein was lyophilized from a 0.2µm filtered solution in 20mM sodium phosphate buffer pH 7.0 in absence of any carrier protein.

Purity

Greater than 98% as determined by SDS-PAGE.

Biological Activity

The biological activity is determined by the dose dependent proliferation of mouse CTLL–2 cells. Optimal concentration for individual application should be determined by a dose response assay. ED50 range = 0.08–0.5ng/ml

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Introduction
IL2 is a secreted cytokine that is important for the proliferation of T and B lymphocytes. The receptor of this cytokine is a heterotrimeric protein complex whose gamma chain is also shared by interleukin 4 (IL4) and interleukin 7 (IL7). The expression of this gene in mature thymocytes is monoallelic, which represents an unusual regulatory mode for controlling the precise expression of a single gene. The targeted disruption of a similar gene in mice leads to ulcerative colitis-like disease, which suggests an essential role of this gene in the immune response to antigenic stimuli.
Synonyms
Interleukin-2, T-cell growth factor (TCGF), Interleukin-2, Lymphokine, IL-2.
Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
Stability
Lyophilized Interleukin-2 although stable at room temperature for 3 weeks, should be stored desiccated below -18C. Upon reconstitution Interleukin-2 should be stored at 4C between 2-7 days and for future use below -18C. Please prevent freeze-thaw cycles.
Solubility
It is recommended to reconstitute the lyophilized Interleukin-2 in sterile 18M-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.
Amino Acid Sequence
A P T S S S T K K T Q L Q L E H L L L D L Q M I L N G I N N Y K N P K L T R M L T F K F Y M P K K A T E L K H L Q C L E E E L K P L E E V L N L A Q S K N F H L R P R D L I S N I N V I V L E L K G S E T T F M C E Y A D E T A T I V E F L N R W I T F C Q S I I S T L T.

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Description:

IFN Regulatory Factor-2 Human Recombinant

IRF-2, IRF2, MAR, DKFZp686F0244, IFN regulatory factor 2.

Product # :

CYT-534

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SDS-PAGE

Description

IFN Regulatory Factor-2 Human Recombinant produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 133 amino acids (1-113) with a His Tag of 20 aa, and having a molecular mass of 15 kDa.The IRF2 is purified by proprietary chromatographic techniques.

Source

Escherichia Coli.

Formulation

1 mg/ml in 20mM Tris pH-8, 1mM DTT and 10% Glycerol.

Purity

Greater than 95.0% as determined by SDS-PAGE.

SDS-PAGE

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Introduction
IFN regulatory factor 2 is a member of the IFN regulatory transcription factor (IRF) family. IRF2 competitively inhibits the IRF1-mediated transcriptional activation of IFNs alpha and beta, and presumably other genes that employ IRF1 for transcription activation. However, IRF2 also functions as a transcriptional activator of histone H4. IRF2 binds to the upstream regulatory region of type-1 IFN and IFN-inducible MHC class-1 genes (the IFN consensus sequence (ics) and represses those genes.
Synonyms
IRF-2, IRF2, MAR, DKFZp686F0244, IFN regulatory factor 2.
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 MPVERMRMRP WLEEQINSNT IPGLKWLNKE KKIFQIPWMHAARHGWDVEK DAPLFRNWAI HTGKHQPGVD KPDPKTWKAN FRCAMNSLPD IEEVKDKSIKKGNNAFRVYR MLP.
Background
What is the molecular weight/Mw of IRF2 HUMAN Protein?
IRF2 HUMAN Protein has a total Mw of 15kDa.

What is the source or expression system of IRF2 HUMAN Protein?
Escherichia Coli.

What is the Purity of IRF2 HUMAN Protein?
IRF2 HUMAN Protein is >95% pure as determined by SDS-PAGE.

What is the Biological Activity of IRF2 HUMAN Protein?
The biological functionality of IRF2 HUMAN Protein will be determined in the future.

What is the amino acid sequence of IRF2 HUMAN Protein?
MGSSHHHHHH SSGLVPRGSH MPVERMRMRP WLEEQINSNT IPGLKWLNKE KKIFQIPWMHAARHGWDVEK DAPLFRNWAI HTGKHQPGVD KPDPKTWKAN FRCAMNSLPD IEEVKDKSIKKGNNAFRVYR MLP.

What applications can IRF2 HUMAN Protein be used in?
IRF2 HUMAN Protein can probably be used in western blot, ELISA and Lateral Flow.

What is the endotoxin level for IRF2 HUMAN Protein?
The endotoxin level is minimal, IRF2 HUMAN 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:

Protein A/G/L Recombinant

Product # :

PRO-1936

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Quantity :

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Shipped at Room temp

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Description

Recombinant Protein-A/G/L produced in E.Coli is a single non-glycosylated polypeptide chain. Protein- A/G/L is comprised of 5 IgG-binding regions of Protein A (E-D-A-B-C), 2 of protein G (C1-C3) and 5 of Protein L (B1-B2-B3-B4-B5) containing 805 amino acids in total and having a molecular mass of 89.2kDa. Cell wall binding region, cell membrane binding region and albumin binding region have been eliminated from the recombinant Protein- A/G/L to guarantee the maximum specific IgG binding.

Source

Escherichia Coli.

Formulation

Protein- A/G/L was lyophilized without any additives.

Purity

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

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Introduction
The recombinant Protein A/G/L is a genetically engineered protein which combines the IgG binding profiles of all Protein A, Protein G and Protein L. Protein A/G/L is a gene fusion product. Recombinant fusion protein A/G/L is comprised of 5 Ig-binding regions of protein L (B1-B2-B3-B4-B5), 5 IgG binding domains from Protein A (E-D-A-B-C) and 2 Ig-binding region of protein G (C1-C3). The recombinant Protein A/G/L is ideal for purification of monoclonal or polyclonal IgG antibodies. Protein A/G/L binds to IgG from humans, mice, rats, cows, goats, sheep, rabbits, guinea pigs, pigs, dogs and cats.
Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
Stability
Lyophilized Protein-A/G/L although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution Protein-A/G/L 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 Protein-A/G/L in sterile 18M-cm H2O not less than 0.1mg/ml, which can then be further diluted to other aqueous solutions.
Amino Acid Sequence
NAAQHDEAQQ NAFYQVLNMP NLNADQRNGF IQSLKDDPSQ SANVLGEAQK LNDSQAPKAD AQQNNFNKDQ QSAFYEILNM PNLNEAQRNG FIQSLKDDPS QSTNVLGEAK KLNESQAPKA DNNFNKEQQN AFYEILNMPN LNEEQRNGFI QSLKDDPSQS ANLLSEAKKL NESQAPKADN KFNKEQQNAF YEILHLPNLN EEQRNGFIQS LKDDPSQSAN LLAEAKKLND AQAPKADNKF NKEQQNAFYE ILHLPNLTEE QRNGFIQSLK DDPSVSKEIL AEAKKLNDAQ APKEEDSLEG SGSGTYKLIL NGKTLKGETT TEAVDAATAE KVFKQYANDN GVDGEWTYDD ATKTFTVTEK PEVIDASELT PAVTTYKLVI NGKTLKGETT TKAVDAETAE KAFKQYANDN GVDGVWTYDD ATKTFTVTEE PRARPGSGSG KEETPETPET DSEEEVTIKA NLIFANGSTQ TAEFKGTFEK ATSEAYAYAD TLKKDNGEYT VDVADKGYTL NIKFAGKEKT PEEPKEEVTI KANLIYADGK TQTAEFKGTF EEATAEAYRY ADALKKDNGE YTVDVADKGY TLNIKFAGKE KTPEEPKEEV TIKANLIYAD GKTQTAEFKG TFEEATAEAY RYADLLAKEN GKYTVDVADK GYTLNIKFAG KEKTPEEPKE EVTIKANLIY ADGKTQTAEF KGTFAEATAE AYRYADLLAK ENGKYTADLE DGGYTINIRF AGKKVDEKPE EKEQVTIKEN IYFEDGTVQT ATFKGTFAEA TAEAYRYADL LSKEHGKYTA DLEDGGYTIN IRFAG.

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:

Interleukin-8, Mouse Anti-Human

IL-8, CXCL8, Monocyte-derived neutrophil chemotactic factor, MDNCF, T-cell chemotactic factor, Neutrophil-activating protein 1, NAP-1, Protein 3-10C, Granulocyte chemotactic protein 1, GCP-1, Monocyte-derived neutrophil-activating peptide, MONAP, Emoctakin, K60, NAF, LECT, LUCT, 3-10C, LYNAP, SCYB8, TSG-1, AMCF-I, b-ENAP.

Product # :

ANT-111

Price :

Quantity :

Shipping Method :

Shipped at Room temp

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formulation
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Formulation

1mg/ml in PBS (after reconstitution).

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Introduction
Interleukin-8 (IL-8) is a chemokine produced by macrophages and other cell types such as epithelial cells. It is also synthesized by endothelial cells, which store IL-8 in their storage vesicles, the Weibel-Palade bodies.
When first encountering an antigen, the primary cells to encounter it are the macrophages who phagocytosethe particle. Upon processing, they release chemokinesto signal other immune cells to come in to the site of inflammation. IL-8 is one such chemokine. It serves as a chemical signal that attracts neutrophilsat the site of inflammation, and therefore is also known as Neutrophil Chemotactic Factor.
Synonyms
IL-8, CXCL8, Monocyte-derived neutrophil chemotactic factor, MDNCF, T-cell chemotactic factor, Neutrophil-activating protein 1, NAP-1, Protein 3-10C, Granulocyte chemotactic protein 1, GCP-1, Monocyte-derived neutrophil-activating peptide, MONAP, Emoctakin, K60, NAF, LECT, LUCT, 3-10C, LYNAP, SCYB8, TSG-1, AMCF-I, b-ENAP.
Solubility
Reconstitute with sterile H20. Mix gently, wash the sides of the vial and wait 30-60 seconds before use.
Immunogen
r.Human IL-8.
Ig Subclass
Mouse IgG1.
Clone
NYR-HIL8.
Applications
Direct ELISA, Western Blot, Immuneprecipitation, Immunohistochemistry.
Cross reactivity
No cross reactivity with murine IL-8 was detected.
Note
This antibody was produced in BALB/c mice.
Titer
By direct ELISA, 1:20,000 dilution will yield >1.0 O.D using alkaline phosphatase conjugated rabbit anti-mouse Ig (Jackson Laboratories).
Shipping Conditions
Antibody is shipped lyophilized at ambient temperature.
Type
Mouse Anti Human Monoclonal.
Storage Procedures
In lyophilized form, for long periods, store at 4C in a dry environment. After reconstitution, if not intended for use within a month, aliquot and store at -20C.
Purification Method
Ion exchange.

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:

IFN Regulatory Factor-5 Human Recombinant

IFN Regulatory Factor 5, IRF-5, SLEB10, IBD14.

Product # :

CYT-816

Price :

Quantity :

Shipping Method :

Shipped with Ice Packs

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SDS-PAGE

Description

IRF5 Human Recombinant produced in E.Coli is a single, non-glycosylated polypeptide chain containing 101 amino acids (176-240a.a) and having a molecular mass of 10.7kDa.IRF5 is fused to a 36 amino acid His-tag at N-terminus & purified by proprietary chromatographic techniques.

Source

Escherichia Coli.

Formulation

IRF5 protein solution (0.25mg/ml) containing 20mM Tris-HCl buffer (pH 8.0), 0.15M NaCl, 30% glycerol and 1mM DTT.

Purity

Greater than 85% as determined by SDS-PAGE.

SDS-PAGE

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Introduction
IFN Regulatory Factor-5, also known as IRF5 belongs to the IFN regulatory factor (IRF) family, a group of transcription factors with various functions, including virus-mediated activation of IFN, and modulation of cell growth, differentiation, apoptosis, and immune system activity. Members of the IRF family are characterized by a conserved N-terminal DNA-binding domain containing tryptophan (W) repeats. Multiple transcript variants encoding different isoforms have been found for this gene. In addition, IRF5 is implicated in the induction of IFNs IFNA and INFB and inflammatory cytokines upon virus infection. IRF5 is activated by TLR7 or TLR8 signaling.
Synonyms
IFN Regulatory Factor 5, IRF-5, SLEB10, IBD14.
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).Please avoid freeze thaw cycles.
Amino Acid Sequence
MRGSHHHHHH GMASMTGGQQ MGRDLYDDDD KDRWGSPPTL QPPTLQPPVV LGPPAPDPSP LAPPPGNPAG FRELLSEVLE PGPLPASLPP AGEQLLPDLL I
Background
What is the molecular weight/Mw of IRF5 HUMAN Protein?
IRF5 HUMAN Protein has a total Mw of 10.7kDa.

What is the source or expression system of IRF5 HUMAN Protein?
Escherichia Coli.

What is the Purity of IRF5 HUMAN Protein?
IRF5 HUMAN Protein is >85% pure as determined by SDS-PAGE.

What is the Biological Activity of IRF5 HUMAN Protein?
The biological functionality of IRF5 HUMAN Protein will be determined in the future.

What is the amino acid sequence of IRF5 HUMAN Protein?
MRGSHHHHHH GMASMTGGQQ MGRDLYDDDD KDRWGSPPTL QPPTLQPPVV LGPPAPDPSP LAPPPGNPAG FRELLSEVLE PGPLPASLPP AGEQLLPDLL I

What applications can IRF5 HUMAN Protein be used in?
IRF5 HUMAN Protein can probably be used in western blot, ELISA and Lateral Flow.

What is the endotoxin level for IRF5 HUMAN Protein?
The endotoxin level is minimal, IRF5 HUMAN 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:

Serine Peptidase Inhibitor, Kunitz Type 2 Human Recombinant

DIAR3, FLJ45571, HAI-2, HAI2, Kop, PB, Kunitz-type protease inhibitor 2, Hepatocyte growth factor activator inhibitor type 2, Placental bikunin, SPINT2.

Product # :

PRO-1296

Price :

Quantity :

Shipping Method :

Shipped with Ice Packs

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source
formulation
purity
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Description

SPINT2 Human Recombinant produced in E.Coli is a single, non-glycosylated polypeptide chain containing 195 amino acids (28-197 a.a.) and having a molecular mass of 21.8kDa.SPINT2 is fused to a 25 amino acid His-tag at N-terminus & purified by proprietary chromatographic techniques.

Source

Escherichia Coli.

Formulation

SPINT2 protein solution (0.5mg/ml) contains 20mM Tris-HCl buffer (pH 8.0), 0.4M Urea and 10% glycerol.

Purity

Greater than 85.0% as determined by SDS-PAGE.

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Introduction
SPINT2 is a transmembrane protein acts as an inhibitor of HGF activator. SPINT2 inhibits plasmin, plasma and tissue kallikrein, and factor XIa. SPINT2 has two extracellular Kunitz domains that inhibit few serine proteases. SPINT2 is assumed tumor suppressor, mutations in SPINT2 leads to a congenital sodium diarrhea.
Synonyms
DIAR3, FLJ45571, HAI-2, HAI2, Kop, PB, Kunitz-type protease inhibitor 2, Hepatocyte growth factor activator inhibitor type 2, Placental bikunin, SPINT2.
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 MGSHMADRER SIHDFCLVSK VVGRCRASMP RWWYNVTDGS CQLFVYGGCD GNSNNYLTKE ECLKKCATVT ENATGDLATS RNAADSSVPS APRRQDSEDH SSDMFNYEEY CTANAVTGPC RASFPRWYFD VERNSCNNFI YGGCRGNKNS YRSEEACMLR CFRQQENPPL PLGSK.

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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