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Protein Page:
LIMK1 (human)

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. Note: This description may include information from UniProtKB.
Protein type: EC; Kinase, protein; LIMK subfamily; LISK family; Protein kinase, Ser/Thr (non-receptor); Protein kinase, TKL; TKL group
Chromosomal Location of Human Ortholog: 7q11.23
Cellular Component: cytoplasm; cytosol; neuron projection; nucleoplasm
Molecular Function: heat shock protein binding; protein binding; protein serine/threonine kinase activity
Biological Process: actin cytoskeleton organization and biogenesis; negative regulation of ubiquitin-protein ligase activity; nervous system development; positive regulation of actin filament bundle formation; positive regulation of axon extension; protein amino acid phosphorylation; Rho protein signal transduction; signal transduction
Disease: Williams-beuren Syndrome
Reference #:  P53667 (UniProtKB)
Alt. Names/Synonyms: LIM domain kinase 1; LIM motif-containing protein kinase; LIMK; LIMK-1; LIMK1
Gene Symbols: LIMK1
Molecular weight: 72,585 Da
Basal Isoelectric point: 6.53  Predict pI for various phosphorylation states
CST Pathways:  Actin Dynamics  |  Microtubule Dynamics  |  TGF-ß Signaling
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