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背景介绍 VEGF is a homodimeric heavily glycosylated protein.The human factor occurs in several molecular variants of 121, 162, 145, 148, 165, 183, 189 , 206 amino acids, arising by alternative splicing of the mRNA.The splice forms of VEGF differ in biological properties such as the receptor types they recognize and their interaction with heparan sulfate proteoglycans. The 165 amino acid form of the factor is the most common form in most tissues. Kaposi sarcomas express VEGF121 and VEGF165. VEGF121 and VEGF165 are soluble secreted forms of the factor while VEGF189 and VEGF206 are mostly bound to heparin-containing proteoglycans in the cell surface or in the basement membrane. A high-affinity glycoprotein receptor of 170-235 kDa is expressed on vascular endothelial cells. The interaction of VEGF with heparin-like molecules of the extracellular matrix is required for efficient receptor binding. The high-affinity receptor for VEGF, now known as VEGFR1, has been identified as the gene product of the FLT-1. Another receptor for VEGF, now known as VEGFR2, is KDR, also known as FLK-1. A third receptor type, VEGFR3 is known also as FLT- 4. An isoform-specific receptor for VEGF165 has been identified as human Neuropilin-1. 产品介绍 Recombinant Vascular endothelial growth factor is a disulfide-linked homodimer protein consisting of 121 amino acid residues, and migrates as an approximately 28 kDa protein under non-reducing and as 14 kDa under reducing conditions in SDS-PAGE. Optimized DNA sequence encoding Mouse Vascular Endothelial Growth Factor mature chain was expressed in E. coli.
询价背景介绍 Thymic stromal lymphopoietin (TSLP) promotes the growth and activation of B cells. It also has wide-ranging impacts on both hematopoietic and nonhematopoietic cell lineages, including dendritic cells, basophils, eosinophils, mast cells, CD4?, CD8? and natural killer T cells, and epithelial cells. TSLP plays a role in the promotion of TH2 responses in lung- and skin-specific allergic disorders, and it also is involved in the blockade of TH1/TH17 responses and the promotion of cancer and autoimmunity. 产品介绍 Recombinant TSLP is a disulfide-linked monomeric protein consisting of 132 amino acid residues, and migrates as an approximately 15 kDa protein under non-reducing conditions and reducing conditions in SDS-PAGE. Optimized DNA sequence encoding Human TSLP mature chain was expressed in E. coli.
询价背景介绍 Thymic stromal lymphopoietin (TSLP) promotes the growth and activation of B cells. It also has wide-ranging impacts on both hematopoietic and nonhematopoietic cell lineages, including dendritic cells, basophils, eosinophils, mast cells, CD4?, CD8? and natural killer T cells, and epithelial cells. TSLP plays a role in the promotion of TH2 responses in lung- and skin-specific allergic disorders, and it also is involved in the blockade of TH1/TH17 responses and the promotion of cancer and autoimmunity. 产品介绍 Recombinant TSLP is a disulfide-linked monomeric protein consisting of 132 amino acid residues, and migrates as an approximately 15 kDa protein under non-reducing conditions and reducing conditions in SDS-PAGE. Optimized DNA sequence encoding Human TSLP mature chain was expressed in E. coli.
询价背景介绍 Thrombopoietin (TPO), known also as TSF (thrombopoiesis stimulating factor), for mediator substances that function as natural stimulators of megakaryocytopoiesis and thus, promote the differentiation of platelets. TPO stimulates an increase in the sizes and numbers of megakaryocytes. It also increases the number of small acetyl-cholinesterase positive cells that are early precursor cells of the megakaryocytic lineage. TPO is a protein of 332 amino acids that shows significant homology with Epo (erythropoietin) in its N-terminal domain. A comparison of human and porcine TPO sequences shows 83 % identity between the erythropoietin-like domains but only 67 % between the C- terminal domains. 产品介绍 Recombinant TPO is disulfide-linked monomer protein consisting of 332 amino acid residues, and migrates due to glycosylation as an approximately 80 kDa protein under non-reducing conditions and reducing conditions in SDS-PAGE. Optimized DNA sequence encoding Human TPO erythropoeitin domain was expressed in Chinese Hamster Ovary cells.
询价背景介绍 Thrombopoietin (TPO), known also as TSF (thrombopoiesis stimulating factor), for mediator substances that function as natural stimulators of megakaryocytopoiesis and thus, promote the differentiation of platelets. TPO stimulates an increase in the sizes and numbers of megakaryocytes. It also increases the number of small acetyl-cholinesterase positive cells that are early precursor cells of the megakaryocytic lineage. TPO is a protein of 332 amino acids that shows significant homology with Epo (erythropoietin) in its N-terminal domain. A comparison of human and porcine TPO sequences shows 83 % identity between the erythropoietin-like domains but only 67 % between the C- terminal domains. 产品介绍 Recombinant TPO is disulfide-linked monomer protein consisting of 332 amino acid residues, and migrates due to glycosylation as an approximately 80 kDa protein under non-reducing conditions and reducing conditions in SDS-PAGE. Optimized DNA sequence encoding Human TPO erythropoeitin domain was expressed in Chinese Hamster Ovary cells.
询价背景介绍 Tissue plasminogen Activator (abbreviated tPA or PLAT) is a protein involved in the breakdown of blood clots. Specifically, it is a serine protease (EC 3.4.21.68) found on endothelial cells lining the blood vessels. It catalyzes the conversion of plasminogen to plasmin, the major enzyme responsible for clot breakdown. 产品介绍 Recombinant tPA is a disulfide-linked monomer protein consisting 527 amino acid residue subunits. and migrates due to glycosylation as an approximately 60kDa protein under non-reducing and reducing conditions in SDS-PAGE. Optimized DNA sequence encoding Human Tissue Plasminogen Activator mature chain was expressed in CHO cells.
询价背景介绍 Tissue plasminogen Activator (abbreviated tPA or PLAT) is a protein involved in the breakdown of blood clots. Specifically, it is a serine protease (EC 3.4.21.68) found on endothelial cells lining the blood vessels. It catalyzes the conversion of plasminogen to plasmin, the major enzyme responsible for clot breakdown. 产品介绍 Recombinant tPA is a disulfide-linked monomer protein consisting 527 amino acid residue subunits. and migrates due to glycosylation as an approximately 60kDa protein under non-reducing and reducing conditions in SDS-PAGE. Optimized DNA sequence encoding Human Tissue Plasminogen Activator mature chain was expressed in CHO cells.
询价背景介绍 Tumor Necrosis Factor is secreted by macrophages, monocytes, neutrophils, T-cells, and NK- cells following their stimulation by bacterial lipopolysaccharides. Cells expressing CD4 secrete TNF-alpha while CD8(+) cells secrete little or no TNF-alpha. Stimulated peripheral neutrophilic granulocytes but also unstimulated cells and also a number of transformed cell lines, astrocytes, microglial cells, smooth muscle cells, and fibroblasts also secrete TNF. Human milk also contains this factor. The synthesis of TNF-alpha is induced by many different stimuli including interferons, IL-2, GM-CSF, SP, Bradykinin, Immune complexes, inhibitors of cyclooxygenase and PAF (platelet activating factor). Human TNF-alpha is a non-glycosylated protein of 17 kDa and a length of 157 amino acids. Murine TNF-alpha is N-glycosylated. Homology with TNF-beta is approximately 30%. TNF-alpha forms dimers and trimers. 产品介绍 Recombinant Mouse TNF is a disulfide-linked monomer protein, consisting of 157 amino acids and migrates as an approximately 17 kDa protein under reducing conditions. Optimized DNA sequence encoding Mouse Tumor Necrosis Factor-alpha extracellular domain was expressed in E. coli.
询价背景介绍 Tumor Necrosis Factor is secreted by macrophages, monocytes, neutrophils, T-cells, and NK- cells following their stimulation by bacterial lipopolysaccharides. Cells expressing CD4 secrete TNF-alpha while CD8(+) cells secrete little or no TNF-alpha. Stimulated peripheral neutrophilic granulocytes but also unstimulated cells and also a number of transformed cell lines, astrocytes, microglial cells, smooth muscle cells, and fibroblasts also secrete TNF. Human milk also contains this factor. The synthesis of TNF-alpha is induced by many different stimuli including interferons, IL-2, GM-CSF, SP, Bradykinin, Immune complexes, inhibitors of cyclooxygenase and PAF (platelet activating factor). Human TNF-alpha is a non-glycosylated protein of 17 kDa and a length of 157 amino acids. Murine TNF-alpha is N-glycosylated. Homology with TNF-beta is approximately 30%. TNF-alpha forms dimers and trimers. 产品介绍 Recombinant Mouse TNF is a disulfide-linked monomer protein, consisting of 157 amino acids and migrates as an approximately 17 kDa protein under reducing conditions. Optimized DNA sequence encoding Mouse Tumor Necrosis Factor-alpha extracellular domain was expressed in E. coli.
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