You searched for: Proteins and Peptides

Proteins are used in routine laboratory procedures such as binding enzymes or coupling peptides to carrier proteins. These kits, mixture solutions, and collagen matrices fulfill a myriad of essential laboratory functions for developing relationships between proteins and other cellular components. The stimulating proteins offered have various amino acid arrangements and functions to fulfill any sample manipulation for testing purposes in any field.

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Horse Recombinant RE VEGF-165 (from E. coli)

Supplier: Shenandoah Biotechnology

Vascular endothelial growth factor-A (VEGF-A) is produced by a wide variety of cell types, including tumor and vascular cells. VEGF-A is a mediator of vascular growth, vascular permeability, and plays a role in stimulating vasodilation via nitric oxide-dependent pathways. VEGF-A has several alternatively spliced isoforms, with VEGF-165 being the most abundant. The VEGF-165 isoform is a secreted protein that acts on receptors VEGFR-1 and VEGFR-2 to modulate endothelial cell proliferation and angiogenesis.

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Human Recombinant TH17 Cell Polarizing Plus PB (from E. coli)

Supplier: Shenandoah Biotechnology

Cytokines for polarizing human T cells into Th9 cells. Th9 cells are a unique subset of T helper cells that produce IL-9. An important function of IL-9 producing T cells is fighting inflammation and helminth infections. Th9 cells can be generated from naive CD4+ T cells in culture by culturing them in the presence of IL-4 and TGF-β 1. It also appears that IFNγ and IL-27 can inhibit the generation of Th9 cells.

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Mouse Recombinant Neural SCE PB (from E. coli)

Supplier: Shenandoah Biotechnology

IL-2C126S, an immune-regulating cytokine originating from lymphocytes, operates via the IL-2R receptor to trigger the expansion of activated T cells and encourage T cell maturation. IL-2 mediates its action by binding to IL-2 receptors (IL-2R), consisting of either trimeric receptors made of IL-2Rα (CD25), IL-2Rβ (CD122), and IL-2Rγ (γc, CD132) chains or dimeric βγ IL-2Rs.

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Human Recombinant VHR (from E. coli)

Supplier: ProSci Inc.

Human DUSP3 belongs to the dual specificity protein phosphatase subfamily. DUSPs are a heterogeneous group of protein phosphatases that can dephosphorylate both phosphotyrosine and phosphoserine/phosphothreonine residues within the one substrate. These phosphatases inactivate their target kinases by dephosphorylating both the phosphoserine/threonine and phosphotyrosine residues. DUSPs are major modulators of critical signalling pathways that are dysregulated in various diseases. They negatively regulate members of the mitogen-activated protein kinase superfamily, which are associated with cellular proliferation and differentiation. DUSP3 is expressed in human tissues including breast and ovarian.DUSP3 shows activity both for tyrosine-protein phosphate and serine-protein phosphate, but displays a strong preference toward phosphotyrosines. Human DUSP3 specifically dephosphorylates and inactivates ERK1 and ERK2.

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Human Recombinant IL-21 (CTGrade GMP) (from E. coli)

Supplier: Shenandoah Biotechnology

PDGF-BB (Platelet-derived growth factor) comprises a family of homo or heterodimeric growth factors, including PDGF-AA, PDGF-BB, PDGF-CC, and PDGF-DD. Binds to two different transmembrane tyrosine kinase receptors (PDGFR-alpha and PDFGR-beta). Released from degranulating platelets and plays a role in each stage of wound healing. Stimulates mitogenicity and chemotaxis of neutrophils, macrophages, fibroblasts, and smooth muscle cells to the wound site.

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Recombinant human deiodinase 3

Supplier: SELENOZYME

The human DIO3 selenoprotein is encoded by the DIO3 gene and catalyzes the inactivation of thyroid hormone by inner ring deiodination of the prohormone thyroxine (T4) and the bioactive hormone 3,3',5-triiodothyronine (T3) to inactive metabolites, 3,3',5'- triiodothyronine (RT3) and 3,3'-diiodothyronine (T2), respectively.
We provide the human DIO3 enzyme with approx. 20% Sec contents, mixed with inactive forms containing Sec-to-Lys and Sec-to-Gln substitutions, at more than 95% purity in aliquots at amounts from 50 to 500 µg.

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Mouse Recombinant 4-1BB

Supplier: ProSci Inc.

Tumor necrosis factor receptor superfamily member 9(TNFRSF9) is a member of the tumor necrosis factor (TNF) receptor family. It can be induced by lymphocyte activation (ILA) and is expressed by activated T cells, but to a larger extent on CD8 than on CD4 T cells. In addition, TNFRSF9 expression is found on dendritic cells, follicular dendritic cells, natural killer cells, granulocytes and cells of blood vessel walls at sites of inflammation. As receptor for TNFSF9/4-1BBL, it can activate T cells and the cross-linking of this protein can enhance T cell proliferation, IL-2 secretion survival and cytolytic activity. Further, it can enhance immune activity to eliminate tumors in mice.

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Mouse Recombinant IL-17A (Animal free) (from E. coli)

Supplier: Shenandoah Biotechnology

Interleukin 17A (IL-17A), also known as CTLA-8, is a member of the IL-17 family of proteins. IL-17A is a proinflammatory cytokine that is secreted by activated CD4+ and CD8+ T lymphocytes. IL-17A acts through its receptor, IL-17R, to promote increased cytokine and chemokine secretion. In turn, the cytokines and chemokines mediate the immunoregulatory function of IL-17A by promoting the proliferation, maturation, and chemoattraction of neutrophils to inflammatory sites. Elevated levels of IL-17A are associated with rheumatoid arthritis, airway inflammation, allograft rejection, inflammatory bowel disease, psoriasis, cancer, and multiple sclerosis. Human, mouse, and rat IL-17A show activity on mouse cells.

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Horse Recombinant PDGF-BB (from E. coli)

Supplier: Shenandoah Biotechnology

Platelet-derived growth factor (PDGF) is an important regulator of cell growth, proliferation, and angiogenesis. PDGF synthesis is induced by IL-1, IL-6, TNF-α, TGF-β, and EGF signaling. PDGF functions as a mitogenic growth hormone on cells of mesenchymal lineage, such as smooth muscle and glial cells. PDGF is also stored in the alpha-granules of platelets and is released upon adherence to traumatised tissues. PDGF is a dimeric glycoprotein formed by two A chains (AA), two B chains (BB), or as a heterodimer with an A and a B chain (AB). The PDGF dimer binds the cell surface receptor tyrosine kinases PDGFR-α and PDGFR-β.

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Human Recombinant Human Th17 Cell Polarizing PB (from E. coli)

Supplier: Shenandoah Biotechnology

Cytokines for polarising human T cells into Th17 cells. T helper 17 cells (Th17) are a distinct type of T cell subset that are thought to be important in immunity against microbes at the epitilial and mucosal interfaces of the body. Disruption of the regular function or balance of Th17 cells is thought to be involved in several autoimmune diseases and/or opportunistic infections. Th17 cells are characterised by their ability to produce IL-17, IL-22 and IL-21. Th17 cells can be cultured from naive CD4+ T cells by culturing them in the presence of anti-CD3 and anti-CD28 stimulation with recombinant IL-6 and recombinant TGF-β 1.

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Human Recombinant Human Neural Sce PB (from E. coli)

Supplier: Shenandoah Biotechnology

Cytokines for human neuronal cell culture. Neural Stem Cells (NSC) are self-renewing cells, of the neural lineage, capable of generating neurons (GABA, dopamine and motor neurons), astrocytes and oligodenrocytes. NSCs are marked by expression of Nestin and can be derived from fetal neural stem cells, adult neural stem cells, embryonic stem cells and adult somatic cells. NSCs are typically expanded and maintained in 2D monolayers or 3D neurosphere cultures containing recombinant EGF and FGF-basic (also called FGF-2 or FGFb). To differentiate NSCs to more specific cell types, the EGF and FGF-basic containing media is often replaced with media containing various cocktails of BDNF, SHH, FGF-8, CNTF, LIF, BMP-4, NT-3, NT-4, PDGFs and other cytokines. Recombinant human EGF and FGF-basic show cross-species reactivity so they are sometimes used in mouse and/or rat cultures.