Recombinant Human VEGF-D Protein, His Tag

Description :
FAQ COA 已发表文献 Vascular endothelial growth factor D (VEGF-D), also known asc-fos-induced growth factor (FIGF), is a secreted glycoprotein of the VEGF/PDGF family. VEGFs regulate angiogenesis and lymphangiogenesis during development and tumor growth, and are characterized by eight conserved cysteine residues that form a cystine knot structure. VEGF-C and VEGF-D, which share 23% amino acid (aa) sequence identity, are uniquely expressed as preproproteins that contain long N- and C_x005f_x001e_terminal propeptide extensions around the VEGF homology domain (VHD). Proteolytic processing of the 354 aa VEGF-D preproprotein creates a secreted proprotein. Further processing by extracellular serine proteases, such as plasmin or furin-like proprotein convertases, forms mature VEGF-D consisting of non_x005f_x001e_covalently linked 42 kDa homodimers of the 117 aa VHD. Mature human VEGF-D shares 94%, 95%, 99%, 97% and 93% aa identity with mouse, rat, equine, canine and bovine VEGF-D, respectively. It is expressed in adult lung, heart, muscle, and small intestine, and is most abundantly expressed in fetal lungs and skin. Mouse and human VEGF-D are ligands for VEGF Receptor 3 (VEGF R3, also called Flt-4) that are active across species and show enhanced affinity when processed. Processed human VEGF-D is also a ligand for VEGF R2, also called Flk-1 or KDR. VEGF R3 is strongly expressed in lymphatic endothelial cells and is essential for regulation of the growth and differentiation of lymphatic endothelium. While VEGF-C is the critical ligand for VEGF R3 during embryonic lymphatic development, VEGF-D is most active in neonatal lymphatic maturation and bone growth. Both promote tumor lymphangiogenesis . Product Properties Synonyms c-fos induced growth factor (vascular endothelial growth factor D); FIGF; vascular endothelial growth factor D; VEGFD; VEGF-D; VEGF-DVEGFDc-Fos-induced growth factor Accession O43915 Source HEK293 Cells-derived human VEGFD, Phe 93-Ser 201with His tagat theC-terminus Molecular Weight The recombinant mature form of human VEGFD consists of 120 amino acids and has a predicted molecular mass of 13.6 kDa. In SDS-PAGE under reducing conditions, it migrates with an apparent molecular mass of 20-22 kDa due to glycosylation. Tag His Purity > 95% by SDS-PAGE. Biological Activity Measured in a cell proliferation assay using human umbilical vein endothelial cells (HUVEC).The ED50for this effect is 0.3_x005f_x001e_1.6 g/mL. Endotoxin EUper 1g of the protein by the LAL method. Formulation Lyophilized from a 0.2 m filtered concentrated solutionin PBS, pH 7.4. Reconstitution We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in sterile distilled water or aqueous buffer containing 0.1% BSA to a concentration of 0.1-1.0 mg/mL. Stock solutions should be apportioned into working aliquots and stored at -20C. Further dilutions should be made in appropriate buffered solutions.