IMP1 Antibody – Rabbit Polyclonal

This gene encodes a member of the insulin-like growth factor 2 mRNA-binding protein family. The protein encoded by this gene contains four K homology domains and two RNA recognition motifs. It functions by binding to the mRNAs of certain genes, including insulin-like growth factor 2, beta-actin and beta-transducin repeat-containing protein, and regulating their translation. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, May 2009]

IGF2BP1: a conserved trans-acting factor that can control translation of specific mRNAs in vivo. Contains four K homology (KH) domains and two RNA recognition motifs. It functions by binding to the 5' UTR of the target mRNAs and repressing translation. Target mRNAs include those encoding beta-actin and insulin-like growth factor 2 (IGF2). Tyrosine phosphorylation apparently abolishes translational repression of actin expression by decreasing its binding beta-actin mRNA. May have a role in progression of ovarian cancer. Contains nuclear export signals within the RNA-binding KH2 and KH4 domains. Aberrant expression may interfere with c-myc regulation.

Protein type: RNA-binding; Translation

Chromosomal Location of Human Ortholog: 17q21.32

Cellular Component: growth cone; perinuclear region of cytoplasm; stress granule; axon; lamellipodium; cytoplasm; dendritic spine; ribonucleoprotein complex; cytosol; nucleus; filopodium

Molecular Function: mRNA binding; protein binding; mRNA 3'-UTR binding; nucleotide binding; translation regulator activity; mRNA 5'-UTR binding

Biological Process: mRNA transport; negative regulation of translation; gene expression; regulation of cytokine biosynthetic process