LIMK1 Antibody – Mouse Monoclonal

LIMK1: a TKL kinase of the LISK family which mediates Rho signaling to cytoskeleton. Contains two N-terminal LIM motifs. Phosphorylated and activated by PAK1 and ROCK, downstream effectors of Rho. May be involved in brain development. Phosphorylates and inactivates the actin binding/depolymerizing factor cofilin and induces actin cytoskeletal changes. The LIM domain interacts with the cytoplasmic domain of NRG1. Binds ROCK1. Interacts with slingshot 1. Overexpressed in prostate tumors and prostate and breast cancer cell lines; manipulation of activity correlates with invasiveness in breast and prostate cancer models. Located within the 7q11.2 amplicon associated with metastatic prostate cancer. Loss of one copy of LIMK1 is the likely cause of visuospatial cognition defects seen in small chromosomal deletions associated with dominant Williams-Beuren syndrome Three splice variant have been identified.

Protein type: EC 2.7.11.1; Kinase, protein; LIMK subfamily; LISK family; Protein kinase, Ser/Thr (non-receptor); Protein kinase, TKL; TKL group

Chromosomal Location of Human Ortholog: 12q12

Cellular Component: cytoplasm; focal adhesion; Golgi apparatus; membrane; neuron projection; nucleoplasm; nucleus; perinuclear region of cytoplasm

Molecular Function: heat shock protein binding; protein heterodimerization activity

Biological Process: negative regulation of ubiquitin-protein ligase activity; positive regulation of actin filament bundle formation; positive regulation of axon extension; positive regulation of stress fiber formation; protein amino acid phosphorylation