LIMK1

There are approximately 40 known eukaryotic LIM proteins, so named for the LIM domains they contain. LIM domains are highly conserved cysteine-rich structures containing 2 zinc fingers. Although zinc fingers usually function by binding to DNA or RNA, the LIM motif probably mediates protein-protein interactions. LIM kinase-1 and LIM kinase-2 belong to a small subfamily with a unique combination of 2 N-terminal LIM motifs and a C-terminal protein kinase domain. LIMK1 is a serine/threonine kinase that regulates actin polymerization via phosphorylation and inactivation of the actin binding factor cofilin. This protein is ubiquitously expressed during development and plays a role in many cellular processes associated with cytoskeletal structure. This protein also stimulates axon growth and may play a role in brain development. LIMK1 hemizygosity is implicated in the impaired visuospatial constructive cognition of Williams syndrome. Alternative splicing results in multiple transcript variants encoding distinct isoforms. [provided by RefSeq, Feb 2011]

Description

LIM domain kinase 1

Tissue specificity

Tissue enhanced (brain)

Subcell location

Nuclear speckles, Cytosol

Predicted location

Intracellular

Protein family

Cancer-related genes
Disease related genes
Enzymes
Human disease related genes
Mapped to neXtProt
Mapped to UniProt SWISS-PROT
Metabolic proteins
Plasma proteins
Potential drug targets
Predicted intracellular proteins
Protein evidence (Ezkurdia et al 2014)
Protein evidence (Kim et al 2014)

Chromosome

7 (74082933 - 74122525)

Ensembl ID

ENSG00000106683  (ver. 103.38)

Orthologs

Mouse Limk1: ENSMUSG00000029674

UniProt

P53667

neXtProt

NX_P53667

Human splice variants
Mouse splice variants

Protein structure