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Protein LIMK2 PDB 1x6a.png
Available structures
PDB Ortholog search: PDBe RCSB
Aliases LIMK2
External IDs MGI: 1197517 HomoloGene: 55911 GeneCards: LIMK2
Genetically Related Diseases
type 2 diabetes mellitus[1]
RNA expression pattern
PBB GE LIMK2 217475 s at fs.png

PBB GE LIMK2 210582 s at fs.png

PBB GE LIMK2 202193 at fs.png
More reference expression data
Species Human Mouse
RefSeq (mRNA)



RefSeq (protein)


Location (UCSC) Chr 22: 31.21 – 31.28 Mb Chr 11: 3.34 – 3.41 Mb
PubMed search [2] [3]
View/Edit Human View/Edit Mouse

LIM domain kinase 2 is an enzyme that in humans is encoded by the LIMK2 gene.[4][5][6]


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. The protein encoded by this gene is phosphorylated and activated by ROCK, a downstream effector of Rho, and the encoded protein, in turn, phosphorylates cofilin, inhibiting its actin-depolymerizing activity. It is thought that this pathway contributes to Rho-induced reorganization of the actin cytoskeleton. At least three transcript variants encoding different isoforms have been found for this gene.[6]


  1. ^ "Diseases that are genetically associated with LIMK2 view/edit references on wikidata". 
  2. ^ "Human PubMed Reference:". 
  3. ^ "Mouse PubMed Reference:". 
  4. ^ Okano I, Hiraoka J, Otera H, Nunoue K, Ohashi K, Iwashita S, Hirai M, Mizuno K (Dec 1995). "Identification and characterization of a novel family of serine/threonine kinases containing two N-terminal LIM motifs". The Journal of Biological Chemistry. 270 (52): 31321–30. doi:10.1074/jbc.270.52.31321. PMID 8537403. 
  5. ^ Dunham I, Shimizu N, Roe BA, Chissoe S, Hunt AR, Collins JE, Bruskiewich R, Beare DM, Clamp M, Smink LJ, Ainscough R, Almeida JP, Babbage A, Bagguley C, Bailey J, Barlow K, Bates KN, Beasley O, Bird CP, Blakey S, Bridgeman AM, Buck D, Burgess J, Burrill WD, O'Brien KP (Dec 1999). "The DNA sequence of human chromosome 22". Nature. 402 (6761): 489–95. doi:10.1038/990031. PMID 10591208. 
  6. ^ a b "Entrez Gene: LIMK2 LIM domain kinase 2". 

Further reading[edit]

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