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Search results

399 results found for “relaxin”

Name

Description

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  • View Data Sheet

    Name :

    RLN3 Human

    Description:

    Relaxin-3 Human Recombinant

    Relaxin 3, Prorelaxin H3, RXN3, Insl7, ZINS4, H3, Relaxin 3 (H3), Relaxin-3, RLN3.

    Product # :

    PRO-2176

    Price :

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    • source
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    Description

    Relaxin-3 Human Recombinant produced in E.Coli is a disulfide-linked heterodimeric, non-glycosylated, polypeptide chain containing 24 amino acids for A chain and 27 amino acids for B chain and having a molecular mass of 2.5kDa for A chain and 3kDa for B chain.The Relaxin-3 is purified by proprietary chromatographic techniques.

    Source

    Escherichia Coli.

    Formulation

    Lyophilized from a 0.2µm filtered solution in Acetonitrile and TFA.

    Purity

    Greater than 95.0% as determined by SDS-PAGE.

    Biological Activity

    The ED50, as measured by cAMP accumulation in human THP-1 cells, is less than 17.5ng/ml.

    More Info

    • Introduction

      Relaxin-3 (RLN3) belongs to the relaxin family. Relaxins are endocrine and autocrine/paracrine hormones. Relaxin, which is produced by the ovary, targets the mammalian reproductive system to ripen the cervix, elongate the pubic symphysis and inhibit uterine contraction. Unlike human Relaxins 1 and 2, Relaxin 3 does not seem to have a role in reproduction; however it is involved in stress response in the brain stem. RLN3 is the only known ligand for the G-protein-coupled receptor GPCR135, titled RXFP3. In addition, RLN3 binds the LGR7 (RXFP1) receptor, however with lower affinity than Relaxin-2. Even though binding of RLN3 to LGR7 increases intracellular cAMP, binding to GPCR135 suppresses cAMP accumulation, indicating coupling to Gi, Go, or Gz by this receptor.

    • Synonyms

      Relaxin 3, Prorelaxin H3, RXN3, Insl7, ZINS4, H3, Relaxin 3 (H3), Relaxin-3, RLN3.

    • Physical Appearance

      Sterile Filtered White lyophilized (freeze-dried) powder.

    • Stability

      Lyophilized RLN3 although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution Relaxin-3 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 RLN3 in sterile 18M-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.

    • Amino Acid Sequence

      A chain: DVLAGLSSSC CKWGCSKSEI SSLC.
      B chain: RAAPYGVRLCG REFIRAVIFT CGGSRW.

    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.

    Rln3 Human
  • View Data Sheet

    Name :

    RLN2 Human

    Description:

    Relaxin-2 Human Recombinant

    Prorelaxin H2, RLN2, H2, RLXH2, H2-RLX, bA12D24.1.1, bA12D24.1.2.

    Product # :

    PRO-1327

    Price :

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    Description

    RLN2 Human Recombinant produced in E.Coli is a single, non-glycosylated polypeptide chain containing 184 amino acids (25-185 a.a) and having a molecular mass of 20.7kDa.RLN2 is fused to a 23 amino acid His-tag at N-terminus & purified by proprietary chromatographic techniques.

    Source

    Escherichia Coli.

    Formulation

    RLN2 protein solution (1mg/ml) containing 20mM Tris-HCl buffer (pH 8.0), 0.4M Urea and 10% glycerol.

    Purity

    Greater than 85.0% as determined by SDS-PAGE.

    More Info

    • Introduction

      Prorelaxin H2 (RLN2) is a member of a family which is produced by the ovary, targets the mammalian reproductive system to ripen the cervix, elongate the pubic symphysis and inhibit uterine contraction. It may also have other roles in boosting sperm motility, regulating blood pressure, controlling heart rate and releasing vasopressin. RLN2 is a peptide hormone linked to several therapeutically relevant physiological effects, including regulation of collagen metabolism and multiple vascular control pathways. The active form of the RLN2 protein consists of an A chain and a B chain linked by disulfide bonds.

    • Synonyms

      Prorelaxin H2, RLN2, H2, RLXH2, H2-RLX, bA12D24.1.1, bA12D24.1.2.

    • 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 MGSDSWMEEV IKLCGRELVR AQIAICGMST WSKRSLSQED APQTPRPVAE IVPSFINKDT ETINMMSEFV ANLPQELKLT LSEMQPALPQ LQQHVPVLKD SSLLFEEFKK LIRNRQSEAA DSSPSELKYL GLDTHSRKKR QLYSALANKC CHVGCTKRSL ARFC.

    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.

    Rln2 Human
  • View Data Sheet

    Name :

    RLN2 Human, Sf9

    Description:

    Relaxin-2 Human Recombinant, Sf9

    Relaxin 2, Relaxin, Ovarian, Of Pregnancy, Prorelaxin H2, Relaxin H2, H2-Preprorelaxin, Relaxin 2 (H2), BA12D24.1.1, BA12D24.1.2, H2-RLX, RLXH2, H2.

    Product # :

    PRO-2406

    Price :

    Quantity :

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    • More Info

    Description

    RLN2 Human Recombinant produced in Sf9 Baculovirus cells is a single, glycosylated polypeptide chain containing 170 amino acids (25-185a.a.) and having a molecular mass of 19.3kDa (Molecular size on SDS-PAGE will appear at approximately 18-28kDa).RLN2 is expressed with a 6 amino acids His tag at C-Terminus and purified by proprietary chromatographic techniques.

    Source

    Sf9, Baculovirus cells.

    Formulation

    RLN2 protein solution (0.5mg/ml) contains Phosphate Buffered Saline (pH 7.4) and 10% glycerol.

    Purity

    Greater than 85.0% as determined by SDS-PAGE.

    More Info

    • Introduction

      Prorelaxin H2 (RLN2) is a member of the insulin gene superfamily. This family which is produced by the ovary, targets the mammalian reproductive system to ripen the cervix, elongate the pubic symphysis and inhibit uterine contraction. It may also have other roles in boosting sperm motility, regulating blood pressure, controlling heart rate and releasing oxytocin and vasopressin. RLN2 is a peptide hormone linked to several therapeutically relevant physiological effects, including regulation of collagen metabolism and multiple vascular control pathways. The active form of the RLN2 protein consists of an A chain and a B chain linked by disulfide bonds.

    • Synonyms

      Relaxin 2, Relaxin, Ovarian, Of Pregnancy, Prorelaxin H2, Relaxin H2, H2-Preprorelaxin, Relaxin 2 (H2), BA12D24.1.1, BA12D24.1.2, H2-RLX, RLXH2, H2.

    • 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

      ADPDSWMEEV IKLCGRELVR AQIAICGMST WSKRSLSQED APQTPRPVAE IVPSFINKDT ETINMMSEFV ANLPQELKLT LSEMQPALPQ LQQHVPVLKD SSLLFEEFKK LIRNRQSEAA DSSPSELKYL GLDTHSRKKR QLYSALANKC CHVGCTKRSL ARFCHHHHHH.

    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.

    Rln2 Human Sf9
  • View Data Sheet

    Name :

    CRH Human

    Description:

    Corticotropin Releasing Hormone Human Recombinant

    CRF, Corticotropin-Releasing Factor.

    Product # :

    HOR-053

    Price :

    Quantity :

    Shipping Method :

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    More Info

    • description
    • source
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    • More Info

    Description

    The CRH Human is created as a recombinant protein with a 4kda N-terminal fusion of His Tag. The CRH His-Tagged Fusion Protein, produced in E. coli, is a 21kDa protein containing 154 amino acid residues of the CRH Human, 43-196 amino 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.

    More Info

    • Synonyms

      CRF, Corticotropin-Releasing Factor.

    • Physical Appearance

      Filtered White lyophilized (freeze-dried) powder.

    • Stability

      Store lyophilized CRH 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

      Corticotropin-Releasing Hormone (CRH) is a neuropeptide which regulates the body's response to stress. CRH stimulates the release of ACTH from the pituitary gland which triggers the adrenal glands to produce cortisol. CRH takes part in the hypothalamic-pituitary-adrenal axis which controls the production of cortisol and more various glucocorticoids. CRH is synthesized in different tissues such as the brainstem, hypothalamus and peripheral organs.

    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.

    Crh Human
  • View Data Sheet

    Name :

    CALM Human

    Description:

    Calmodulin Human

    Calmodulin, CaM, CALM.

    Product # :

    PRO-2799

    Price :

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    More Info

    • source
    • formulation
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    • More Info

    Source

    Human brain tissue.

    Formulation

    CALM was lyophilized with 2mM EDTA.

    Purity

    Greater than 95.0%.

    More Info

    • 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.

    Calmodulin Human
  • View Data Sheet

    Name :

    PMSG

    Description:

    Pregnant Mare Serum Gonadotropin

    Product # :

    HOR-272

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    Description

    PMSG is a complex glycoprotein obtained from the serum of pregnant mares. This 43-63 kda protein is capable of supplementing and being substituted for the follicle stimulating and interstitial cell-stimulating hormone of the anterior pituitary gland in both the male and female. Thus PMSG-Intervet stimulates development of the ovarian follicle in the female.

    Source

    Serum of pregnant mares.

    Formulation

    The PMSG was lyophilized with no additives.

    More Info

    • Introduction

      PMSG Hormone is a well know used hormone together with progestogen to increase ovulation just before to artificial insemination. PMSG hormone is a placental glycoprotein produced from the serum of pregnant mares. PMSG comprises of an alfa subunit and a beta subunit. PMSG hormone is secreted from endometrial cups within the pregnant mare uterus aging from 40 to 130 days into their maturation, and once extracted, it can been used to promote artificially estrus in female animals. These assemblies produce PMSG hormone to induce mare's ovarian and repsouctive structures. PMSG can induce the growth of follicles by ovaries and results in ovulatation. PMSG hormone has an about a 4 day half-life of bioactivity in species other than horses. The extended biological activity can cause ovarian stimulation and ovulation. However, PMSG use alone often causes cystic ovarian disease because of the unrestrained ovarian stimulation and due to the sugar molecules which decrease clearance of the hormone. PMSG is more likely to be used than other pituitary hormones due to the extended circulatory half-life. PMSG solely exhibits luteinizing hormone like activity, however in other animal classes it has FSH & LH like activity.

    • Physical Appearance

      Sterile Filtered White lyophilized (freeze-dried) powder.

    • Stability

      Lyophilized PMSG although stable at room temperature for 3 weeks, should be stored between 2-8°C.

    • Solubility

      It is recommended to reconstitute the lyophilized PMSG in sterile 18M-cm H2O at a concentration of 1000 IU/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.

    Pmsg
  • View Data Sheet

    Name :

    CALM Bovine

    Description:

    Calmodulin Bovine

    Calmodulin, CaM, CALM.

    Product # :

    PRO-2800

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    Source

    Bovine brain tissue.

    Formulation

    CALM was lyophilized with 2mM EDTA.

    Purity

    Greater than 95.0%.

    More Info

    • 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

      Biochemical and immunochemical investigations.

    • Background

      Role in Muscle Contraction and Relaxation:

      In muscle cells, calmodulin plays a pivotal role in the regulation of contraction and relaxation. It interacts with myosin light-chain kinase during muscle contraction, initiating the process of cross-bridge cycling. Conversely, during muscle relaxation, calmodulin activates the enzyme myosin light-chain phosphatase, leading to the dephosphorylation of myosin and muscle relaxation. This delicate balance is crucial for proper muscle function.

      Neuronal Signalling and Synaptic Plasticity:

      In neurons, calmodulin is essential for neurotransmitter release and synaptic plasticity. It modulates the activity of proteins involved in vesicle fusion and neurotransmitter release. Additionally, calmodulin-dependent protein kinases (CaMKs) are critical for synaptic plasticity, learning, and memory. The intricate interplay between calmodulin and neuronal proteins underpins the fundamental processes of learning and cognition.

      Implications in Disease and Therapeutics:

      Dysregulation of calmodulin has been implicated in various diseases, including cardiac arrhythmias and neurodegenerative disorders. Mutations in calmodulin genes can lead to aberrant calcium signalling and cellular dysfunction. Consequently, understanding these molecular mechanisms offers potential therapeutic targets. Researchers are exploring calmodulin inhibitors and modulators for conditions like cardiac arrhythmias, aiming to restore normal cellular function.

      Conclusion:

      Calmodulin, with its remarkable structural versatility and central role in cellular signalling, epitomizes the complexity of biological regulation. Its influence spans from the fundamental processes of muscle contraction to the intricacies of neuronal signalling. Unravelling the mysteries of calmodulin not only deepens our understanding of basic biological phenomena but also holds the promise of innovative therapeutic interventions. This research illuminates calmodulin's significance, emphasizing its position as a master regulator in the orchestra of cellular life.

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    Calmodulin Bovine
  • View Data Sheet

    Name :

    Exenatide

    Description:

    Exenatide

    Exendin-4.

    Product # :

    HOR-246

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    Description

    Exenatide is a single, non-glycosylated, peptide containing 39 amino acids and having a molecular mass of 4186.6 Dalton. Exenatide has the empirical formula C184H282N50O60S.

    Formulation

    The Exenatide peptide was lyophilized from a concentrated solution with no additives.

    Purity

    Greater than 99.0% as determined by:
    (a) Analysis by RP-HPLC.
    (b) Analysis by SDS-PAGE.

    More Info

    • Introduction

      Exenatide Derived from the saliva of the gila monster, is a 39 amino acid peptide that mimics the GLP-1 incretin, an insulin secretagogue with glucoregulatory effects. Typical responses to exenatide include improvements in the initial rapid release of endogenous insulin, suppression of glucagon release by the pancreas, regulation of gastric empyting, and reduced appetite - all of which function to lower blood glucose. Exenatide is self-regulating in that it lowers blood sugar when levels are elevated but does not continue to lower blood sugar when levels return to normal, unlike with sulfonylureas or insulins.

    • Synonyms

      Exendin-4.

    • Physical Appearance

      Sterile Filtered White lyophilized (freeze-dried) powder.

    • Stability

      Lyophilized Exenatide although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution Exenatide 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 Exenatide in sterile 18MΩ-cm H2O not less than 100 µg/ml, which can then be further diluted to other aqueous solutions.

    • Amino Acid Sequence

      H-His-Gly-Glu-Gly-Thr-Phe-Thr-Ser-Asp-Leu-Ser-Lys-Gln-Met-Glu-Glu-Glu-Ala-Val-Arg-Leu-Phe-Ile-Glu-Trp-Leu-Lys-Asn-Gly-Gly-Pro-Ser-Ser-Gly-Ala-Pro-Pro-Pro-Ser-NH2.

    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.

    Exenatide
  • View Data Sheet

    Name :

    CALM2 Human

    Description:

    Calmodulin-2 Human Recombinant

    PHKD, CAMII, PHKD2, Calmodulin-2, CALM2, CALM1 protein, Phosphorylase kinase delta.

    Product # :

    PRO-618

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    Description

    Recombinant CALM2 produced in E.Coli is a single, non-glycosylated polypeptide chain containing 149 amino acids and having a molecular mass of 16 kDa. CALM2 is purified by conventional chromatography techniques.

    Source

    Escherichia Coli.

    Formulation

    The CALM2 solution (1mg/ml) contains 20mM Tris-HCl, pH-7.5.

    Purity

    Greater than 90.0% as determined by:
    (a) Analysis by RP-HPLC.
    (b) Analysis by SDS-PAGE.

    More Info

    • Introduction

      Calmodulin-2 acts as an intracellular calcium sensor protein. When the intracellular Ca2+ concentration increases, calmodulin can bind up to four Ca2+, changing its conformation and regulating cellular functions such as activation or inhibition of a large number of enzymes, ion channels, and receptors. P53 protein stimulates CALM2 gene expression in 041 cells. CALM-2 is involved in the processes of Ca(2+)-induced neuronal cell death and the blockage of calmodulin attenuates brain injury after cerebral ischemia. Calmodulin-2 mediates the control of a large number of enzymes and other proteins by ca(2+). among the enzymes to be stimulated by the calmodulin-ca(2+) complex are a number of protein kinases and phosphatases.

    • Synonyms

      PHKD, CAMII, PHKD2, Calmodulin-2, CALM2, CALM1 protein, Phosphorylase kinase delta.

    • 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

      MADQLTEEQI AEFKEAFSLF DKDGDGTITT KELGTVMRSL GQNPTEAELQ DMINEVDADG NGTIDFPEFL TMMARKMKDT DSEEEIREAF RVFDKDGNGY ISAAELRHVM TNLGEKLTDE EVDEMIREAD IDGDGQVNYE EFVQMMTAK.

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    Calm2 Human
  • View Data Sheet

    Name :

    CALM2 Human 135 a.a

    Description:

    Calmodulin-2 135 a.a. Human Recombinant

    CALM2, CAM2, CAMB, CAMII, PHKD2, calmodulin 2.

    Product # :

    PRO-370

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    Description

    CALM2 Human Recombinant full length protein expressed in E.coli, containing 135 amino acids and having a Molecular Weight of approximately 16 kDa.

    Source

    Escherichia Coli.

    Formulation

    CALM2 at 1mg/ml in 20mM HEPES-KOH, pH7, 50mM NaCl, 1mM EDTA and 1mM DTT.

    Purity

    Greater than 90% as determined by SDS-PAGE.

    More Info

    • Introduction

      Calmodulin (CaM) is an intracellular receptor protein for Ca2+-ions. It activates the myosin light chain kinase which is the catalyst of myosin phosphorylation. CaM participates in the activation of enzymes such as cyclic nucleotide- dependent phosphodiesterase, calcineurin, ATPase, Myosin Light Chain Kinases, and CAM kinase.

    • Synonyms

      CALM2, CAM2, CAMB, CAMII, PHKD2, calmodulin 2.

    • Physical Appearance

      Sterile Filtered clear solution.

    • Stability

      Store vial at -20°C to -80°C. When stored at the recommended temperature, this protein is stable for 12 months.Please prevent freeze-thaw cycles.

    • Amino Acid Sequence

      MADQLTEEQI AEFKEAFSLF DKDGDGTITT KELGTVMRSL GQNPTEAELQ DMINEVDADG NGTIDFPEFL TMMARKMKDT DSEEEIREAF RVFDKDGNGY ISAAELRHVM TNLGEKLTDE EVDEMIREAD IDGDGQ.

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    Calmodulin Protein
  • View Data Sheet

    Name :

    Angiotensin

    Description:

    Angiotensin

    Angiotensinogen, Serpin A8, ANHU, SERPINA8.

    Product # :

    ENZ-283

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    Description

    Angiotensin contains a total of 8 amino acids having a molecular weight of 1031.2 Dalton and a molecular formula of C49H70N14O11.

    Source

    Synthetic.

    Purity

    Greater than 98.0% as determined by RP-HPLC.

    More Info

    • Introduction

      Angiotensin is an oligopeptide in the blood that causes vasoconstriction, increased blood pressure, and release of aldosterone from the adrenal cortex. It is a powerful dipsogen. It is derived from the precursor molecule angiotensinogen, a serum globulin produced in the liver. It plays an important role in the renin-angiotensin system.
      The protein encoded by this gene, pre-angiotensinogen or angiotensinogen precursor, is expressed in the liver and is cleaved by the enzyme renin in response to lowered blood pressure. The resulting product, angiotensin I is then cleaved by angiotensin converting enzyme (ACE) to generate the physiologically active enzyme angiotensin II. The protein is involved in maintaining blood pressure and in the pathogenesis of essential hypertension and preeclampsia.

    • Synonyms

      Angiotensinogen, Serpin A8, ANHU, SERPINA8.

    • Physical Appearance

      Sterile Filtered white lyophilized powder.

    • Stability

      Lyophilized Angiotensin although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution Serpin A8 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 Angiotensin in sterile 18MΩ-cm H2O not less than 100 µg/ml or more than 10 mg/ml solutions.

    • Amino Acid Sequence

      Asn-Arg-Val-Tyr-Val-His-Pro-Phe-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.

    Angiotensin
  • View Data Sheet

    Name :

    SELPLG Human

    Description:

    Selectin P Ligand Human Recombinant

    Cutaneous Lymphocyte-Associated Associated Antigen, Selectin P Ligand, PSGL-1, CD162 Antigen, P-Selectin Glycoprotein Ligand 1, CLA.

    Product # :

    PRO-2714

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    Description

    SELPLG Human Recombinant produced in HEK293 Cells is a single, glycosylated polypeptide chain containing 496 amino acids (42-295 a.a) and having a molecular mass of 53.4kDa.SELPLG is fused to a 239 amino acid hIgG-His-Tag at C-terminus & purified by proprietary chromatographic techniques.

    Source

    HEK293 Cells.

    Formulation

    The SELPLG solution (1mg/1ml) contains phosphate buffered saline (pH7.4) and 10% glycerol.

    Purity

    Greater than 90.0% as determined by SDS-PAGE.

    More Info

    • Introduction

      SELPLG glycoprotein functions as a high affinity counter-receptor for the cell adhesion selectin molecules (P, E and L) located in stimulated T lymphocytes and myeloid cells. SELPLG binds leukocytes to activated platelets or endothelia expressing selectins, a vital role in leukocyte trafficking throughout inflammation. In order to have a high-affinity binding activity SELPLG needs two post-translational modifications, tyrosine sulfation and the addition of the sialyl Lewis x tetrasaccharide (sLex) to its O-linked glycans. Polymorphisms and abnormal expression of SELPLG are linked to defects in the innate and adaptive immune response. Alternate splicing results in multiple transcript variants.

    • Synonyms

      Cutaneous Lymphocyte-Associated Associated Antigen, Selectin P Ligand, PSGL-1, CD162 Antigen, P-Selectin Glycoprotein Ligand 1, CLA.

    • 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

      DGSQATEYEY LDYDFLPETE PPEMLRNSTD TTPLTGPGTP ESTTVEPAAR RSTGLDAGGA VTELTTELAN MGNLSTDSAA MEIQTTQPAA TEAQTTPLAA TEAQTTRLTA TEAQTTPLAA TEAQTTPPAA TEAQTTQPTG LEAQTTAPAA MEAQTTAPAA MEAQTTPPAA MEAQTTQTTA MEAQTTAPEA TEAQTTQPTA TEAQTTPLAA MEALSTEPSA TEALSMEPTT KRGLFIPFSV SSVTHKGIPM AASNLSVLEP KSCDKTHTCP PCPAPELLGG PSVFLFPPKP KDTLMISRTP EVTCVVVDVS HEDPEVKFNW YVDGVEVHNA KTKPREEQYN STYRVVSVLT VLHQDWLNGK EYKCKVSNKA LPAPIEKTIS KAKGQPREPQ VYTLPPSRDE LTKNQVSLTC LVKGFYPSDI AVEWESNGQP ENNYKTTPPV LDSDGSFFLY SKLTVDKSRW QQGNVFSCSV MHEALHNHYT QKSLSLSPGK HHHHHH

    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.

    Cd162 Human
  • View Data Sheet

    Name :

    Leptin-A Tilapia

    Description:

    Leptin-A Tilapia Recombinant

    Product # :

    CYT-1109

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    Description

    Leptin-A Tilapia Recombinant produced in E.Coli is a single, non-glycosylated polypeptide chain containing 161 amino acids and having a molecular mass of 16,491 Dalton. The Leptin-A Tilapia is purified by proprietary chromatographic techniques.

    Source

    Escherichia Coli.

    Formulation

    Lyophilized from a concentrated (1mg/ml) solution containing NaHCO3 at 1:2 salt: protein ratio.

    Purity

    Greater than 95.0% as determined by:
    (a) Gel filtration analysis.
    (b) Analysis by SDS-PAGE.

    Biological Activity

    Tilapia leptins were found to be biologically active in promoting proliferation of BAF/3 cells stably transfected with the long form of human leptin receptor, but their activity was lower than that of mammalian leptin. Furthermore, the Tilapia leptins were biologically active in promoting STAT‐LUC activation in COS7 cells transfected with Tilapia leptin receptor but not in cells transfected with human leptin receptor. Tilapia Leptin A was more active than Tilapia Leptin B.

    More Info

    • Introduction

      Leptin is a protein hormone. It is mainly produced in adipose cells that regulate energy homeostasis by restraining hunger. Leptin ties to nuclear receptors in the hypothalamus (arcuate nucleus). Similar to insulin resistance in type II diabetes, in obesity there is a decrease in the sensitivity towards leptin, ending in a failure to identify satiety, even in high levels of energy stores or leptin itself. Full-length cDNA encoding 2 leptin sequences (tLepA and tLepB) and 1 leptin receptor sequence (tLepR) exists in tilapia (Oreochromis niloticus). The full-length cDNA of tLepR is 3423 bp, encoding a protein of 1140 amino acid which contained all functionally important domains conserved among vertebrate leptin receptors. The cDNAs of tLepA and tLepB are 486 bp and 459 bp in length, encoding proteins of 161 aa and 152 aa, respectively. The three-dimensional structures of tLepA and tLepB demonstrates strong conservation of tertiary structure with that of human leptin comprised of 4 helixes.

    • Physical Appearance

      Sterile Filtered White lyophilized (freeze-dried) powder.

    • Stability

      Lyophilized Leptin-A Tilapia although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution Leptin-A Tilapia 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-A Tilapia 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.

    • Amino Acid Sequence

      The first six N-terminal amino acids of recombinant Tilapia leptin A are Ala-Pro-Leu-Pro-Val-Glu.

    • Protein content

      Protein quantitation was carried out by UV spectroscopy at 280 nm using the absorbency value of 1.33 for 1 mg/ml Leptin-A Tilapia as the extinction coefficient for a 0.1% (1mg/ml) solution at pH 8.0. This value is calculated by the DNAman computer analysis program of protein sequences.

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    Leptin A
  • View Data Sheet

    Name :

    Leptin-B Tilapia

    Description:

    Leptin-B Tilapia Recombinant

    Product # :

    CYT-1110

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    Description

    Leptin-B Tilapia Recombinant produced in E.Coli is a single, non-glycosylated polypeptide chain containing 152 amino acids and having a molecular mass of 15,243 Dalton. The Leptin-B Tilapia is purified by proprietary chromatographic techniques.

    Source

    Escherichia Coli.

    Formulation

    Lyophilized from a concentrated (1mg/ml) solution containing NaHCO3 at 1:2 salt: protein ratio.

    Purity

    Greater than 95.0% as determined by:
    (a) Gel filtration analysis.
    (b) Analysis by SDS-PAGE.

    Biological Activity

    Tilapia leptins were found to be biologically active in promoting proliferation of BAF/3 cells stably transfected with the long form of human leptin receptor, but their activity was lower than that of mammalian leptin. Furthermore, the Tilapia leptins were biologically active in promoting STAT‐LUC activation in COS7 cells transfected with Tilapia leptin receptor but not in cells transfected with human leptin receptor. Tilapia Leptin A was more active than Tilapia Leptin B.

    More Info

    • Introduction

      Leptin is a protein hormone. It is mainly produced in adipose cells that regulate energy homeostasis by restraining hunger. Leptin ties to nuclear receptors in the hypothalamus (arcuate nucleus). Similar to insulin resistance in type II diabetes, in obesity there is a decrease in the sensitivity towards leptin, ending in a failure to identify satiety, even in high levels of energy stores or leptin itself. Full-length cDNA encoding 2 leptin sequences (tLepA and tLepB) and 1 leptin receptor sequence (tLepR) exists in tilapia (Oreochromis niloticus). The full-length cDNA of tLepR is 3423 bp, encoding a protein of 1140 amino acid which contained all functionally important domains conserved among vertebrate leptin receptors. The cDNAs of tLepA and tLepB are 486 bp and 459 bp in length, encoding proteins of 161 aa and 152 aa, respectively. The three-dimensional structures of tLepA and tLepB demonstrates strong conservation of tertiary structure with that of human leptin comprised of 4 helixes.

    • Physical Appearance

      Sterile Filtered White lyophilized (freeze-dried) powder.

    • Stability

      Lyophilized Leptin-B Tilapia although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution Leptin-B Tilapia 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-B Tilapia 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.

    • Amino Acid Sequence

      The first six N-terminal amino acids of recombinant Tilapia leptin B are Ala-Leu-Leu-Thr-Lys-Gly.

    • Protein content

      Protein quantitation was carried out by UV spectroscopy at 280 nm using the absorbency value of 0.19 for 1 mg/ml Leptin-B Tilapia as the extinction coefficient for a 0.1% (1mg/ml) solution at pH 8.0. This value is calculated by the DNAman computer analysis program of protein sequences.

    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.

    Leptin B
  • View Data Sheet

    Name :

    SLPI Human

    Description:

    Secretory Leukocyte Peptidase Inhibitor Human Recombinant

    Antileukoproteinase, ALK1, ALP, BLPI, HUSI, HUSI-I, MPI, WAP4, WFDC4, WAP four-disulfide core domain protein 4, Protease inhibitor WAP4, Seminal proteinase inhibitor, Mucus proteinase inhibitor.

    Product # :

    PRO-849

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    Description

    SLPI Recombinant E.coli produced in E.Coli is a single, non-glycosylated polypeptide chain containing 128 amino acids (26-132 a.a.) and having a molecular mass of 14 kDa. The SLPI is fused to a 21 amino acid His-Tag at N-terminus and purified by proprietary chromatographic techniques.

    Source

    Escherichia Coli.

    Formulation

    SLPI Human solution containing 20mM Tris-HCl pH-8.0, 2mM DTT, 0.1M NaCl & 20% glycerol.

    Purity

    Greater than 80.0% as determined by SDS-PAGE.

    More Info

    • Introduction

      SLPI is a secreted inhibitor which guards epithelial tissues from serine proteases. SLPI is localized in various secretions including seminal plasma, cervical mucus, and bronchial secretions, and has affinity for trypsin, leukocyte elastase, and cathepsin G. SLPI inhibitory effect contributes to the immune response by protecting epithelial surfaces from attack by endogenous proteolytic enzymes. SLPI protein has broad-spectrum anti-biotic activity. SLPI is an acid-stable proteinase inhibitor with strong affinities for trypsin, chymotrypsin, elastase, and cathepsin G. SLPI prevents elastase-mediated damage to oral and mucosal tissues.

    • Synonyms

      Antileukoproteinase, ALK1, ALP, BLPI, HUSI, HUSI-I, MPI, WAP4, WFDC4, WAP four-disulfide core domain protein 4, Protease inhibitor WAP4, Seminal proteinase inhibitor, Mucus proteinase inhibitor.

    • 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 MSGKSFKAGV CPPKKSAQCL RYKKPECQSD WQCPGKKRCC PDTCGIKCLD PVDTPNPTRR KPGKCPVTYG QCLMLNPPNF CEMDGQCKRD LKCCMGMCGK SCVSPVKA.

    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.

    Slpi Human
  • View Data Sheet

    Name :

    E Selectin Human

    Description:

    E-selectin Human Recombinant

    E-selectin, Endothelial leukocyte adhesion molecule 1, ELAM-1, Leukocyte-endothelial cell adhesion molecule 2, LECAM2, CD62E antigen, SELE, ELAM1, ELAM, ESEL, CD62E.

    Product # :

    PRO-380

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    Description

    E-Selectin Human Recombinant is expressed in E. coli containing amino acids 179-557 fused to an amino terminal hexahistidine tag, having a total molecular weight of 45.22 kDa.

    Source

    Escherichia Coli.

    Formulation

    E-Selectin is supplied in 1x PBS and 50% Glycerol.

    Purity

    Greater than 95% as determined by SDS-PAGE.
    Single band on Western Blot.

    More Info

    • Introduction

      E-selectin which is also called Endothelial leukocyte adhesion molecule 1, ELAM1, ELAM belongs to a family of divalent cation-dependent carbohydrate-binding glycoproteins or adhesion molecules. Eselectin is expressed on the surface of endothelial cells and mediates the interaction of leukocytes and platelets with endothelial cells during an inflammatory response. E-selectin is present in single copy in the human genome and contains 14 exons spanning about 13 kb of DNA.

    • Synonyms

      E-selectin, Endothelial leukocyte adhesion molecule 1, ELAM-1, Leukocyte-endothelial cell adhesion molecule 2, LECAM2, CD62E antigen, SELE, ELAM1, ELAM, ESEL, CD62E.

    • Physical Appearance

      Sterile Filtered liquid formulation.

    • Stability

      Store at 4°C if entire vial will be used within 1-2 weeks. Store, frozen at -20°C for longer periods of time. 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.

    E Selectin Human
  • View Data Sheet

    Name :

    MYOZ1 Human

    Description:

    Myozenin 1 Human Recombinant

    CS-2, FATZ, MYOZ, Calsarcin-2, Filamin-, actinin- and telethonin-binding protein,Protein FATZ, MYOZ1.

    Product # :

    PRO-1652

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    Description

    MYOZ1 Human Recombinant produced in E.Coli is a single, non-glycosylated polypeptide chain containing 322 amino acids (1-299 a.a.) and having a molecular mass of 34.1kDa.MYOZ1 is fused to a 23 amino acid His-tag at N-terminus & purified by proprietary chromatographic techniques.

    Source

    Escherichia Coli.

    Formulation

    MYOZ1 protein solution (1mg/ml) contains 20mM Tris-HCl buffer, (pH 8.0), 0.4M UREA and 10% glycerol.

    Purity

    Greater than 90.0% as determined by SDS-PAGE.

    More Info

    • Introduction

      Myozenin 1 (MYOZ1) is a member of the myozenin family. MYOZ1 is mostly expressed in the skeletal muscle. Members of the myozenin family act as calcineurin-interacting proteins which helps tether calcineurin to the sarcomere of cardiac and skeletal muscle. The myozenin family plays a significant role in modulation of calcineurin signaling.

    • Synonyms

      CS-2, FATZ, MYOZ, Calsarcin-2, Filamin-, actinin- and telethonin-binding protein,Protein FATZ, MYOZ1.

    • 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 MGSMPLSGTP APNKKRKSSK LIMELTGGGQ ESSGLNLGKK ISVPRDVMLE ELSLLTNRGS KMFKLRQMRV EKFIYENHPD VFSDSSMDHF QKFLPTVGGQ LGTAGQGFSY SKSNGRGGSQ AGGSGSAGQY GSDQQHHLGS GSGAGGTGGP AGQAGRGGAA GTAGVGETGS GDQAGGEGKH ITVFKTYISP WERAMGVDPQ QKMELGIDLL AYGAKAELPK YKSFNRTAMP YGGYEKASKR MTFQMPKFDL GPLLSEPLVL YNQNLSNRPS FNRTPIPWLS SGEPVDYNVD IGIPLDGETE EL.

    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.

    Myoz1 Human
  • View Data Sheet

    Name :

    Secretin Human

    Description:

    Secretin Human

    Product # :

    HOR-273

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    Description

    Secretin has a molecular formula of C130H220N44O41, a.a. sequence of H-His-Ser-Asp-Gly-Thr-Phe-Thr-Ser-Glu-Leu-Ser-Arg-Leu-Arg- Asp-Ser-Ala-Arg-Leu-Gln-Arg-Leu-Leu-Gln-Gly-Leu-Val-NH2 and having an Mw of 3055.4 Dalton.

    Formulation

    The protein (1mg/ml) was lyophilized with no additives.

    Purity

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

    More Info

    • Introduction

      Human Secretin stimulates the secretion of bicarbonate by the pancreas and inhibits the production of gastrin and acid production in the stomach. It also potentiates the release of digestive enzymes from the pancreas triggered by cholecystokinin.

    • Physical Appearance

      Sterile Filtered White lyophilized (freeze-dried) powder.

    • Stability

      Lyophilized Secretin although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution Secretin 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 Secretin in sterile 18MΩ-cm H2O not less than 100 µg/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.

    Secretin Human
  • View Data Sheet

    Name :

    Exendin 4

    Description:

    Exendin-4 Recombinant

    Product # :

    HOR-269

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    Description

    Exendin-4 Recombinant produced in E.Coli is a non-glycosylated polypeptide chain containing 39 amino acids and having a molecular mass of approximately 4.2kDa. Exendin-4 is purified by proprietary chromatographic techniques.

    Source

    Escherichia Coli.

    Formulation

    Lyophilized from a 0.2μm filtered concentrated solution in PBS, pH 7.4.

    Purity

    Greater than 96.0% as determined by:
    (a) Analysis by RP-HPLC.
    (b) Analysis by SDS-PAGE.

    Biological Activity

    1. Regulates Glucose levels rapidly
    2. Reduces Insulin resistance 
    3. Reduces Glucagon

    4. Stimulates beta cell growth production.

    More Info

    • Introduction

      Exedin-4 Recombinant is a like peptide-1 receptor agonist. The native hormone is produced in the gut of Gila monster Heloderma suspectrum (a type of reptile found in the desert) that stimulates production without causing threateningly low blood sugar, which can occur after using some anti-diabetes products. Recently, researchers used extracted saliva from gila monsters to create an unprecedented breakthrough in Diabetes Type 2 treatment. Unlike other products taken for type 2 diabetes, Exedin-4 has not been linked with weight gain and actually resulted in weight loss, according to the researchers. Exedin-4 enhances glucose-dependant secretion, suppresses inappropriately elevated secretion and slows gastric emptying in vivo. It also promotes B-cell proliferation and neogenesis in vitro and in animal models. Exedin-4 stimulates an increase in acinar cAMP, without stimulating the release of amylase.

    • Physical Appearance

      Sterile Filtered White lyophilized (freeze-dried) powder.

    • Stability

      Lyophilized Exendin Recombinant although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution Exendin-4 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 Exendin Recombinant in sterile 18MΩ-cm H2O not less than 100 µg/ml, which can then be further diluted to other aqueous solutions.

    • Amino Acid Sequence

      HGEGTFTSDL SKQMEEEAVR LFIEWLKNGG PSSGAPPPS.

    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.

    Exendin 4
  • View Data Sheet

    Name :

    L Selectin Human

    Description:

    L-selectin Human Recombinant

    L-selectin, Lymph node homing receptor, Leukocyte adhesion molecule 1, LAM-1, Leukocyte surface antigen Leu-8, TQ1, gp90-MEL, Leukocyte-endothelial cell adhesion molecule 1, LECAM1, CD62 antigen-like family member L, CD62L antigen, LAM1, LNHR, LSEL, CD62L, LYAM1, Leu-8, PLNHR, hLHRc, Lyam-1, L-Sel.

    Product # :

    PRO-381

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    • More Info

    Description

    L-Selectin Human Recombinant is expressed in E. coli containing 294 amino acids 39-332 fused to an amino terminal hexahistidine tag, having a total molecular weight of 37.55kDa.

    Source

    Escherichia Coli.

    Formulation

    L-Sel is supplied in 1x PBS and 50% Glycerol.

    Purity

    Greater than 95% as determined by SDS-PAGE.
    Single band on Western Blot.

    More Info

    • Introduction

      L-Selectin belongs to a family of divalent cation-dependent carbohydrate-binding glycoproteins or adhesion molecules. The L-Selectin molecule is composed of various domains: one homologous to lectins, one to epidermal growth factor, and two to the consensus repeat units found in C3/C4 binding proteins.
      L-selectin is expressed constitutively on lymphocytes, monocytes and granulocytes and interacts specifically with carbohydrate groups on activated endothelial cells. L-Selectin may be shed by proteolytic cleavage and circulating levels in biological fluids may be used as an indicator of various pathological conditions. L-Selectin is cleaved by ADAM17.
      L-selectin works as a "homing receptor" for leukocytes to enter secondary lymphoid tissues via the high endothelial venules. Ligands present on endothelial cells will attach to leukocytes expressing L-selectin, which causes the leukocytes to become localized at that juncture. The receptor is also located on the cell surfaces of "naive" T cells, which have not yet encountered their particular antigen. This surface expression is lost following the cells activation.

    • Synonyms

      L-selectin, Lymph node homing receptor, Leukocyte adhesion molecule 1, LAM-1, Leukocyte surface antigen Leu-8, TQ1, gp90-MEL, Leukocyte-endothelial cell adhesion molecule 1, LECAM1, CD62 antigen-like family member L, CD62L antigen, LAM1, LNHR, LSEL, CD62L, LYAM1, Leu-8, PLNHR, hLHRc, Lyam-1, L-Sel.

    • Physical Appearance

      Sterile filtered colorless solution.

    • Stability

      Store at 4°C if entire vial will be used within 1-2 weeks. Store, frozen at -20°C for longer periods of time. Avoid multiple freeze-thaw cycles.

    • Applications

      L-Selectin can be used directly as a positive control in Western blotting, ELISA, immunoprecipitation and other immunological experiments.
      The biological activity of this product has not yet been tested.

    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.

    L Selectin Human
  • View Data Sheet

    Name :

    a-Actinin

    Description:

    Actinin Alpha

    Alpha-actinin-1, Alpha-actinin cytoskeletal isoform, Non-muscle alpha-actinin-1, F-actin cross-linking protein, ACTN1.

    Product # :

    PRO-518

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    • More Info

    Description

    Ultra pure Alpha Actinin having a Molecular mass of 95,000 Dalton.

    Source

    Chicken Gizzard.

    Formulation

    The protein was lyophilized from a 1mg/ml solution containing 10mM Tris acetate buffer pH 7.6, 0.1mM EDTA, 2mM DTT, and 20mM NaCl.

    Purity

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

    More Info

    • Introduction

      ACTN1 encodes a nonmuscle, cytoskeletal, alpha actinin isoform and maps to the same site as the structurally similar erythroid beta spectrin gene. Alpha actinins belong to the spectrin gene superfamily which represents a diverse group of cytoskeletal proteins, including the alpha and beta spectrins and dystrophins. Alpha actinin is an actin-binding protein with multiple roles in different cell types. In nonmuscle cells, the cytoskeletal isoform is found along microfilament bundles and adherens-type junctions, where it is involved in binding actin to the membrane. In contrast, skeletal, cardiac, and smooth muscle isoforms are localized to the Z-disc and analogous dense bodies, where they help anchor the myofibrillar actin filaments.

    • Synonyms

      Alpha-actinin-1, Alpha-actinin cytoskeletal isoform, Non-muscle alpha-actinin-1, F-actin cross-linking protein, ACTN1.

    • Physical Appearance

      Sterile Filtered White lyophilized (freeze-dried) powder.

    • Stability

      Lyophilized a-Actinin although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution a-Actinin 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 a-Actinin in sterile 18MΩ-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.

    • Applications

      Protein standard in 1D and 2D SDS gelelectrophoresis
      Immunoassays
      Immunization.

    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.

    Alpha Actinin
  • View Data Sheet

    Name :

    Thymosin beta 4

    Description:

    Thymosin β4

    Thymosin beta-4. TB500, TB-500

    Product # :

    HOR-275

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    Description

    Thymosin b4 is a 43 amino acid peptide which is regarded as the main intracellular G-actin sequestering peptide. It has a molecular weight of 4963.55 Da, and its molecular formula is: C212H350N56O78S1. Extracellular Thymosin b4 may contribute to physiological processes such as angiogenesis, wound healing, and regulation of inflammation.

    Formulation

    The protein (1mg/ml) was lyophilized with no additives.

    Purity

    Greater than 98.0% as determined by RP-HPLC.

    More Info

    • Introduction

      Thymosin is a hormone secreted from the thymus. Its primary function is to stimulate the production of T cells, which are an important part of the immune system. Thymosin also assists in the development of B cells to plasma cells to produce antibodies. The predominant form of thymosin, thymosin b4, is a member of a highly conserved family of actin monomer-sequestering proteins. b-thymosins are the primary regulators of unpolymerized actin, and are essential for maintaining the small cytoplasmic pool of free G-actin monomers required for rapid filament elongation and allowing for the flux of monomers between the thymosin-bound pool and F-actin.

    • Synonyms

      Thymosin beta-4. TB500, TB-500

    • Physical Appearance

      Sterile Filtered White lyophilized (freeze-dried) powder.

    • Stability

      Lyophilized Thymosin b4 although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution T beta 4 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 Thymosin beta-4 in sterile 18MΩ-cm H2O not less than 100 µg/ml, which can then be further diluted to other aqueous solutions.

    • Amino Acid Sequence

      Thymosin b4 has an a.a. sequence of Ac-Ser-Asp-Lys-Pro-Asp-Met-Ala-Glu-Ile-Glu-Lys-Phe-Asp-Lys-Ser-Lys-Leu-Lys-Lys-Thr-Glu-Thr-Gln-Glu-Lys-Asn-Pro-Leu-Pro-Ser-Lys-Glu-Thr-Ile-Glu-Gln-Glu-Lys-Gln-Ala-Gly-Glu-Ser-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.

    Thymosin Beta 4
  • View Data Sheet

    Name :

    Leptin Pufferfish

    Description:

    Leptin Pufferfish Recombinant

    OB Protein, Obesity Protein, OBS, Obesity factor.

    Product # :

    CYT-530

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    • source
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    • biological activity
    • More Info

    Description

    Leptin Pufferfish (Takifugu rubripes) Recombinant produced in E.Coli is a single, non-glycosylated, polypeptide chain having a molecular mass of 16 kDa. Bioactive Leptin Pufferfish (Takifugu rubripes) Recombinant was prepared according to the sequence published by Kurokawa et al. (2005)Peptides 26, 745-750 in two forms: monomer and covalent dimer. MS analysis revealed molecular masses of 15,291 and 30,585 Da, close to the theoretical values of 15,270 and 30,540 Da. CD spectra revealed high similarity to mammalian leptins. Other details of its preparation will be soon published by Yacobovitz et al (in press), General and Comparative Endocrinology.The Pufferfish Leptin is purified by proprietary chromatographic techniques.

    Source

    Escherichia Coli.

    Formulation

    The Pufferfish Leptin was lyophilized from a concentrated (0.85mg/ml) solution with 0.003mM NaHCO3.

    Purity

    Greater than 99.0% 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. The affinity of human leptin receptors is considerably lower campared to mammalian leptins.

    More Info

    • 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 Pufferfish 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 Pufferfish Leptin in sterile 0.4% NaHCO3 pH-9 not less than 100µg/ml, which can then be further diluted to other aqueous solutions.

    • Amino Acid Sequence

      ALPGALDAMDVEKMKSKVTWKAQGLVARIDKHFPDRGLRFDTDKVE

      GSTSVVASLESYNNLISDRFGGVSQIKTEISSLAGYLNHWREGNCQE

      QQPKVWPRRNIFNHTVSLEALMRVREFLKLLQKNVDLLERC

    • Protein content

      Protein quantitation was carried out by UV spectroscopy at 280 nm using the absorbency value of 1.28 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).

    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.

    Leptin Pufferfish
  • View Data Sheet

    Name :

    Leptin tA Ovine

    Description:

    Leptin Antagonist Triple Mutant Ovine Recombinant

    Product # :

    CYT-356

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    • More Info

    Description

    Leptin Antagonist Triple Mutant Ovine Recombinant is a single non-glycosilated polypeptide chain containing 146 amino and additional Ala at N-terminus acids and having a molecular mass of ~ 16 kDa, Leptin was mutated, resulting in L39A/D40A/F41A mutant. Leptin Antagonist Triple Mutant Ovine Recombinant was purified by proprietary chromatographic techniques.

    Source

    Escherichia coli.

    Formulation

    The protein 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

    ProSpec’s Leptin-Antagonist Triple Mutant Ovine Recombinant is capable of inhibiting leptin-induced proliferation of BAF/3 cells stably transfected with the long form of mouse leptin receptor. It also inhibits various leptin effects in several in vitro bioassays.

    More Info

    • Physical Appearance

      White lyophilized (freeze-dried) powder.

    • Stability

      Lyophilized Leptin Antagonist Triple Mutant Ovine Recombinant although stable at room temperature for several weeks, should be stored desiccated below -18°C. Upon reconstitution at > 0.1 Lep-tA mutant mg/ml and up to 2 mM and filter sterilization Leptin mutant 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 Leptin-Antagonist Triple Mutant Ovine Recombinant in sterile water or sterile 0.4% NaHCO3 adjusted to pH 8, 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 UV spectroscopy at 280 nm using the absorbency value of 0.21 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.

    Leptin Ta Ovine
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