Hepatocyte Growth Factor, Recombinant, Human (HGF, Scatter Factor, SF, Hepatopoietin A)
Biozol Catalog Number:
USB-052079
Supplier Catalog Number:
052079
Alternative Catalog Number:
USB-052079-5,USB-052079-25
Manufacturer:
US Biological
Category:
Molekularbiologie
HGF is a potent, mesenchymally-derived mitogen for mature parenchymal hepatocytes, and acts as a growth factor for a broad spectrum of tissues and cell types. HGF signals through a transmembrane tyrosine kinase receptor known as MET. Activities of HGF include the induction of cell proliferation, motility, morphogenesis, inhibition of cell growth, and enhancement of neuron survival. HGF is a crucial mitogen for liver regeneration processes, especially after partial hepatectomy and other liver injuries. Human and murine HGF are cross-reactive. Human HGF is expressed as a linear, polypeptide-precursor glycoprotein containing 697 amino acid residues. Proteolytic processing of this precursor generates the biologically active heterodimeric form of HGF, which consists of two polypeptide chains (alpha-chain and beta-chain) held together by a single disulfide bond resulting in formation of a biologically active heterodimer. The alpha-chain consists of 463 amino acid residues and four kringle domains. The beta-chain consists of 234 amino acid residues. Recombinant human HGF, sourced from HEK293 cells, is a 79.4kD polypeptide consisting of 695 amino acid residues. As a result of glycosylation, Recombinant human HGF migrates with an apparent molecular mass of approximately 68-85kD by SDS-PAGE gel, under non-reducing conditions. Biological Activity: Determined by the dose-dependent stimulation of the proliferation of monkey 4MBr-5 cells. The expected ED50 for this effect is 1.0-20.0 ng/ml. Amino Acid Sequence: alpha chain: KRRNTIHEFK KSAKTTLIKI DPALKIKTKK VNTADQCANR CTRNKGLPFT CKAFVFDKAR KQCLWFPFNS MSSGVKKEFG HEFDLYENKD YIRNCIIGKG RSYKGTVSIT KSGIKCQPWS SMIPHEHSFL PSSYRGKDLQ ENYCRNPRGE EGGPWCFTSN PEVRYEVCDI PQCSEVECMT CNGESYRGLM DHTESGKICQ RWDHQTPHRH KFLPERYPDK GFDDNYCRNP DGQPRPWCYT LDPHTRWEYC AIKTCADNTM NDTDVPLETT ECIQGQGEGY RGTVNTIWNG IPCQRWDSQY PHEHDMTPEN FKCKDLRENY CRNPDGSESP WCFTTDPNIR VGYCSQIPNC DMSHGQDCYR GNGKNYMGNL SQTRSGLTCS MWDKNMEDLH RHIFWEPDAS KLNENYCRNP DDDAHGPWCY TGNPLIPWDY CPISRCEGDT TPTIVNLDHP VISCAKTKQL R beta chain: VVNGIPTRTN IGWMVSLRYR NKHICGGSLI KESWVLTARQ CFPSRDLKDY EAWLGIHDVH GRGDEKCKQV LNVSQLVYGP EGSDLVLMKL ARPAVLDDFV STIDLPNYGC TIPEKTSCSV YGWGYTGLIN YDGLLRVAHL YIMGNEKCSQ HHRGKVTLNE SEICAGAEKI GSGPCEGDYG GPLVCEQHKM RMVLGVIVPG RGCAIPNRPG IFVRVAYYAK WIHKIILTYK VPQS Storage and Stability: Lyophilized and reconstituted products are stable for 6 months after receipt at -20C. Reconstitute with sterile ddH2O or PBS. Aliquot to avoid repeated freezing and thawing. Store at -20C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.
