A synthetic peptide corresponding to a sequence at the C-terminal of human ABI-1 .Remarks: Sequence is different from the related rat and mouse sequence by single amino acid
ABI1 is a human homolog of mouse Abl-interactor-1 (Abi1), mapped on 10p11.2. ABI1 participate in the transduction of signals from Ras to Rac by regulating Rac-specific guanine nucleotide exchange factor (GEF) activities. ABI1 dramatically promoted ABL1-mediated tyrosine phosphorylation of MENA,but not of other substrates. Abi-1 regulates c-Abl-mediated phosphorylation of Mena by interacting with both proteins.ABI1 plays a role in the leukemogenesis by translocating to MLL.Synonyms: Abelson interactor 1, Abi-1, Abl interactor 1, Abl-binding protein 4, AblBP4, Eps8 SH3 domain-binding protein, Nap1-binding protein, Spectrin SH3 domain-binding protein 1, Spectrin binding protein, e3B1