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Supplier: Peprotech

Description: IL-4 is a pleiotropic cytokine that regulates diverse T and B cell responses including cell proliferation, survival and gene expression. Produced by mast cells, T cells and bone marrow stromal cells, IL-4 regulates the differentiation of naive CD4+ T cells into helper Th2 cells, characterized by their cytokine-secretion profile that includes secretion of IL-4, IL-5, IL-6, IL-10, and IL-13, which favor a humoral immune response. Another dominant function of IL-4 is the regulation of immunoglobulin class switching to the IgG1 and IgE isotypes. Excessive IL-4 production by Th2 cells has been associated with elevated IgE production and allergy. Recombinant Human IL-4 is a 15.1 kDa globular protein containing 130 amino acid residues.

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Supplier: Peprotech

Description: Recombinant HumansCD28 Fc, Purity: Greater than 95% by SDS-PAGE gel and HPLC analyses, Source: CHO cells, Determined by its ability to bind its principal binding partner (B7-1) in a functional ELISA, Synonyms: T-cell-specific surface glycoprotein CD28, Size: 1MG

Supplier: Peprotech

Description: Recombinant Murine Leptin (AF), Purity: Greater than 98% by SDS-PAGE gel and HPLC analyses, Source: E.coli, Cross Reactivity: Hamster, Human, Significant effects on body weight, food consumption and plasma glucose levels, Synonyms: Obesity protein (OB), Size: 1MG

Supplier: Peprotech

Description: Recombinant Murine BD-2, Purity: Greater than 98% by SDS-PAGE gel and HPLC analyses, Source: E.coli, expressed on some leukocytes and at epithelial surfaces, Synonyms: Beta-Defensin 2, DEFB2, DEFB4A, Skin-Antimicrobial Peptide 1, SAP1, Size: 5UG

Supplier: Peprotech

Description: Produced from sera of rabbits immunized with highly pure Recombinant Human BD-5. Anti­Human BD-5­specific antibody was purified by affinity chromatography and then biotinylated.

Supplier: Peprotech

Description: Animal-Free Human IL-37 Recombinant Protein, Purity: >95%, Source: E.coli, Biological Activity: By its ability to bind Interleukin-18 Binding Protein isoform a (IL-18 BPa) in functional ELISA, Synonyms: I

Catalog Number: (76303-662)

Supplier: Peprotech

Description: BDNF is a member of the NGF family of neurotrophic growth factors. Like other members of this family, BDNF supports neuron proliferation and survival. BDNF can bind to a low affinity cell surface receptor called LNGFR, which also binds other neurotrophins such as NGF, NT-3 and NT-4. However, BDNF mediates its neurotrophic properties by signaling through a high affinity cell surface receptor called gp145/trkB. BDNF is expressed as the C-terminal portion of a 247 amino acid polypeptide precursor, which also contains a signal sequence of 18 amino acid residues and a propeptide of 110 amino acid residues. Recombinant Human/Murine/Rat BDNF is a 27.0 kDa homodimer of two 120 amino acid subunits linked by strong non-covalent interactions.

Catalog Number: (76303-590)

Supplier: Peprotech

Description: The three mammalian isoforms of TGF-beta, TGF-beta1, beta2, and beta3, signal through the same receptor and elicit similar biological responses. They are multifunctional cytokines that regulate cell proliferation, growth, differentiation and motility, as well as synthesis and deposition of the extracellular matrix. They are involved in various physiological processes, including embryogenesis, tissue remodeling and wound healing. They are secreted predominantly as latent complexes, which are stored at the cell surface and in the extracellular matrix. The release of the biologically active TGF-beta isoform from a latent complex involves proteolytic processing of the complex and/or induction of conformational changes by proteins such as thrombospondin-1. The physiological role of TGF-beta3 is still unknown, but its expression pattern suggests a role in the regulation of certain development processes. Recombinant Human TGF-beta3 is a 25.0 kDa protein composed of two identical 112 amino acid polypeptide chains linked by a single disulfide bond.

Supplier: Peprotech

Description: Defensins (alpha and beta) are cationic peptides with a broad spectrum of antimicrobial activity that comprise an important arm of the innate immune system. The alpha-defensins are distinguished from the beta-defensins by the pairing of their three disulfide bonds. To date, six human beta-defensins have been identified; BD-1, BD-2, BD-3, BD-4, BD-5 and BD-6. beta-defensins are expressed on some leukocytes and at epithelial surfaces. In addition to their direct antimicrobial activities, they can act as chemoattractants towards immature dendritic cells and memory T cells. The beta-defensin proteins are expressed as the C-terminal portion of precursors, and are released by proteolytic cleavage of a signal sequence and, in some cases, a propeptide sequence. Beta-defensins contain a six-cysteine motif that forms three intra-molecular disulfide bonds. Recombinant Murine BD-3 is a 4.6 kDa protein containing 41 amino acid residues.

Supplier: Peprotech

Description: Biotinylated p16-INK4a-TAT, Polyclonal antibody, Host: Rabbit, Species: Human, Immunogen: E.coli derived Recombinant Human p16-INK4a-TAT, Application: Sandwich ELISA, Western Blot, Purity: affinity chromatography, Size: 25UG

Supplier: Peprotech

Description: Semaphorins are a large group of structurally-related, secreted, GPI-anchored, transmembrane, cell-signaling molecules. There are 8 major classifications of Semaphorins (the first seven ordered by number, 1-7, and the eighth designated V for virus), which are characterized by the existence of a conserved 500 amino acid SEMA domain at the amino terminus. Classes 3, 4, 6, and 7 are found in vertebrates only, whilst class 5 is found in both vertebrates and invertebrates. Each class is then divided into additional subgroups based on shared structural characteristics. Semaphorins primarily function as axon growth cone guidance factors during neuronal development. Semaphorin 3A acts as a chemo-repellent to axons, and an inhibitor of the growth of axons by signaling through receptors, Neuropilin-1 and Plexin-A. PeproTech's CHO cell-derived Recombinant Human Semaphorin 3A Fc is a glycosylated, disulfide-linked homodimer of 1,976 amino acid residues, which includes the SEMA domain, immunoglobulin c2-like domain, and the C-terminal basic Arg/Lys-rich domain of the mature sequence, as well as an 8-residue N-terminal His-tag and a 230-residue C-terminal Fc region linked by two glycines. Recombinant Human Semaphorin 3A Fc has a calculated molecular weight of 226.2 kDa and therefore runs above the 200kDa marker by SDS-PAGE analysis under nonreducing conditions. When run under reducing conditions, this protein migrates as three distinct bands that, due to glycosylation, run higher than expected at apparent molecular weights of approximately 120-130 kDa, 90-100 kDa, and 35-40 kDa.

Catalog Number: (76303-684)

Supplier: Peprotech

Description: FGF-4 is a heparin-binding growth factor that is a member of the FGF family. Proteins of this family play a central role during prenatal development, postnatal growth and regeneration of a variety of tissues, by promoting cellular proliferation and differentiation. FGF-4 signals through FGFR 1c, 2c, 3c, and 4. Recombinant Human FGF-4 is a 19.7 kDa protein consisting of 182 amino acid residues.

Catalog Number: (76303-678)

Supplier: Peprotech

Description: PDGFs are disulfide-linked dimers consisting of two 12.0-13.5 kDa polypeptide chains, designated PDGF-A and PDGF-B chains. The three naturally occurring PDGFs, PDGF-AA, PDGF-BB and PDGF-AB, are potent mitogens for a variety of cell types, including smooth muscle cells, connective tissue cells, bone and cartilage cells, and some blood cells. The PDGFs are stored in platelet alpha-granules, and are released upon platelet activation. The PDGFs are involved in a number of biological processes, including hyperplasia, chemotaxis, embryonic neuron development, and respiratory tubule epithelial cell development. Two distinct signaling receptors used by PDGFs have been identified and named PDGFR-alpha and PDGFR-beta. PDGFR-alpha is a high-affinity receptor for each of the three PDGF forms. On the other hand, PDGFR-beta interacts with only PDGF-BB and PDGF-AB. Recombinant Human PDGF-AB is a 26.4 kDa disulfide-linked dimer, consisting of one alpha chain and one beta chain (234 total amino acids).

Supplier: Peprotech

Description: The IL-1 family is comprised of 11 structurally related ligands, including the recently re-named IL-36RA (IL-1F5), IL-36alpha (IL-1F6), IL-36beta (IL-1F8), and IL-36gamma (IL-1F9). The interaction of IL-36 ligands with the IL-1Rrp2 receptor (IL-1R6) can induce various activities, including dendritic cell maturation and activation. IL-36RA can antagonize the NF-kappaB signaling induced by either IL-36alpha, beta or gamma by binding to the IL-1Rrp2 receptor in a manner that prevents the initiation of functional signaling. Recombinant Murine IL-36RA is an E. coli-derived 16.9 kDa protein containing 154 amino acid residues.

Catalog Number: (76303-830)

Supplier: Peprotech

Description: The MCP proteins are members of the CC chemokine family that signal through CCR2 and, with the exception of MCP-1, other CCR receptors. The MCP proteins chemoattract and activate monocytes, activated T cells, basophils, NK cells, and immature dendritic cells. The MCP family cross-reacts across species. Recombinant Human MCP-1 is an 8.6 kDa protein containing 76 amino acid residues, including the four highly conserved cysteine residues present in the CC chemokines.

Catalog Number: (76303-822)

Supplier: Peprotech

Description: IP-10 is a CXC chemokine that signals through the CXCR3 receptor. IP-10 selectively chemoattracts Th1 lymphocytes and monocytes, and inhibits cytokine-stimulated hematopoietic progenitor cell proliferation. Additionally, it is angiostatic and mitogenic for vascular smooth muscle cells. Recombinant Murine IP-10 is an 8.7 kDa protein consisting of 77 amino acids, including the four conserved cysteine residues present in CXC chemokines.