Inhibits IGF-mediated growth and developmental rates. IGF-binding proteins prolong the half-life of the IGFs and have been shown to either inhibit or stimulate the growth promoting effects of the IGFs on cell culture. They alter the interaction of IGFs with their cell surface receptors. Binds IGF2 more than IGF1. Note: This description may include information from UniProtKB.
Molecular Function: protein binding; insulin-like growth factor I binding; insulin-like growth factor II binding
Biological Process: response to drug; regulation of insulin-like growth factor receptor signaling pathway; response to retinoic acid; response to lithium ion; response to glucocorticoid stimulus; female pregnancy; positive regulation of activated T cell proliferation; signal transduction; response to estradiol stimulus; cellular response to hormone stimulus; cellular protein metabolic process; response to mechanical stimulus; response to stress; regulation of cell growth; response to nutrient; aging
SS: The number of records in which this modification site was determined using site-specific methods. SS methods include amino acid sequencing, site-directed mutagenesis, modification site-specific antibodies, specific MS strategies, etc.