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Function. Approximately 98% of IGF-1 is always bound to one of six binding proteins (IGF-BP). IGFBP-3, the most abundant protein, accounts for 80% of all IGF binding. IGF-1 binds to IGFBP-3 in a 1:1 molar ratio. IGF-BP also binds to IGF-1 inside the liver, allowing growth hormone to continuously act upon the liver to produce more IGF-1.
The insulin-like growth factors (IGFs) are proteins with high sequence similarity to insulin. IGFs are part of a complex system that cells use to communicate with their physiologic environment. This complex system (often referred to as the IGF "axis") consists of two cell-surface receptors (IGF1R and IGF2R), two ligands (IGF-1 and IGF-2), a ...
16006 Ensembl ENSG00000146678 ENSMUSG00000020429 UniProt P08833 P47876 RefSeq (mRNA) NM_001013029 NM_000596 NM_008341 RefSeq (protein) NP_000587 NP_032367 Location (UCSC) Chr 7: 45.89 – 45.89 Mb Chr 11: 7.15 – 7.15 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Insulin-like growth factor-binding protein 1 (IBP-1) also known as placental protein 12 (PP12) is a protein that in ...
[7] IGF-1 is a protein that in humans is encoded by the IGF1 gene. [8] [9] IGF-1 consists of 70 amino acids in a single chain with three intramolecular disulfide bridges. IGF-1 has a molecular weight of 7,649 daltons. [10] In dogs, an ancient mutation in IGF1 is the primary cause of the toy phenotype. [11] IGF-1 is produced primarily by the liver.
IGFBP7. Insulin-like growth factor-binding protein 7 is a protein that in humans is encoded by the IGFBP7 gene. [5][6][7] The major function of the protein is the regulation of availability of insulin-like growth factors (IGFs) in tissue as well as in modulating IGF binding to its receptors. IGFBP7 binds to IGF with low affinity compared to ...
The IGFBP3 gene (or IBP3), on human chromosome 7, is organized into four protein-coding exons with a 5th exon in the 3' untranslated region. [8] It is located adjacent to the IGFBP1 gene in tail-to-tail orientation, separated by 20 kb. [9] The encoded protein includes a 27-residue signal peptide followed by the 264-residue mature protein.
16010 Ensembl ENSG00000141753 ENSMUSG00000017493 UniProt P22692 P47879 RefSeq (mRNA) NM_001552 NM_010517 RefSeq (protein) NP_001543 NP_034647 Location (UCSC) Chr 17: 40.44 – 40.46 Mb Chr 11: 98.93 – 98.95 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Insulin-like growth factor-binding protein 4 is a protein that in humans is encoded by the IGFBP4 gene. Function This gene is a ...
IGF2BP1. Insulin-like growth factor 2 mRNA-binding protein 1 is a protein that in humans is encoded by the IGF2BP1 gene. [5] [6] [7] This gene encodes a member of the IGF-II mRNA-binding protein (IMP) family. The protein encoded by this gene contains four K homology domains and two RNA recognition motifs. It functions by binding to the 5' UTR ...