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IGF-BPs control the distribution, function and activity of IGFs in various cell tissues and body fluids. Currently, there are seven named IGF-BPs that form high affinity complexes with both IGF-I and IGF-II. IGF-BP5 is a 28.6 kDa, cysteine-rich, secreted protein produced by vascular smooth muscle cells. It is the major IGF-binding protein present in bone tissue and helps potentiate the action of IGF-I on smooth muscle cells, fibroblasts, and osteoblasts. Data shows that IGFBP-5 acts as a growth inhibitor and pro-apoptotic agent in breast cancer cells. IGFBP-5-overexpressing mice show an increase in neonatal mortality, reduced female fertility, whole-body growth inhibition, and retarded muscle development. Recombinant Human IGF-BP5 is a 28.6 kDa protein consisting of 253 amino acid residues.
Source: E.coli
Synonyms: Insulin-like Growth Factor-Binding Protein 5, IBP-5
AA Sequence: MLGSFVHCEP CDEKALSMCP PSPLGCELVK EPGCGCCMTC ALAEGQSCGV YTERCAQGLR CLPRQDEEKP LHALLHGRGV CLNEKSYREQ VKIERDSREH EEPTTSEMAE ETYSPKIFRP KHTRISELKA EAVKKDRRKK LTQSKFVGGA ENTAHPRIIS APEMRQESEQ GPCRRHMEAS LQELKASPRM VPRAVYLPNC DRKGFYKRKQ CKPSRGRKRG ICWCVDKYGM KLPGMEYVDG DFQCHTFDSS NVS
Purity: ≥ 98% by SDS-PAGE gel and HPLC analyses.
Biological Activity: The ED50 was determined by its ability to inhibit IGF-II induced proliferation of MCF-7 is ≤ 0.3 μg/ml in the presence of 15 ng/ml of human IGF-II.
Calculated Molecular Weight: 28.6 kDa
Accession Number: P24593
Gene ID: 3488
Endotoxin: Endotoxin level is < 0.1 ng/ug of protein (< 1 EU/ug)
crossreactivity:
Human
