Available structures
PDBOrtholog search: PDBe RCSB
AliasesLIMK1, LIMK, LIMK-1, LIM domain kinase 1
External IDsOMIM: 601329 MGI: 104572 HomoloGene: 1738 GeneCards: LIMK1
RefSeq (mRNA)



RefSeq (protein)



Location (UCSC)Chr 7: 74.08 – 74.12 MbChr 5: 134.68 – 134.72 Mb
PubMed search[3][4]
View/Edit HumanView/Edit Mouse

LIM domain kinase 1 is an enzyme that in humans is encoded by the LIMK1 gene.[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, a central PDZ domain, and a C-terminal protein kinase domain. LIMK1 is likely to be a component of an intracellular signaling pathway and may be involved in brain development.[7]

Clinical significance

LIMK1 hemizygosity is implicated in the impaired visuospatial constructive cognition of Williams syndrome.[7]


LIMK1 has been shown to interact with:


  1. ^ a b c GRCh38: Ensembl release 89: ENSG00000106683 - Ensembl, May 2017
  2. ^ a b c GRCm38: Ensembl release 89: ENSMUSG00000029674 - Ensembl, May 2017
  3. ^ "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. ^ "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  5. ^ Tassabehji M, Metcalfe K, Fergusson WD, Carette MJ, Dore JK, Donnai D, Read AP, Pröschel C, Gutowski NJ, Mao X, Sheer D (Aug 1996). "LIM-kinase deleted in Williams syndrome". Nat. Genet. 13 (3): 272–3. doi:10.1038/ng0796-272. PMID 8673124. S2CID 138698.
  6. ^ Osborne LR, Martindale D, Scherer SW, Shi XM, Huizenga J, Heng HH, Costa T, Pober B, Lew L, Brinkman J, Rommens J, Koop B, Tsui LC (Jan 1997). "Identification of genes from a 500-kb region at 7q11.23 that is commonly deleted in Williams syndrome patients". Genomics. 36 (2): 328–36. doi:10.1006/geno.1996.0469. PMID 8812460.
  7. ^ a b "Entrez Gene: LIMK1 LIM domain kinase 1".
  8. ^ Foletta VC, Lim MA, Soosairajah J, Kelly AP, Stanley EG, Shannon M, He W, Das S, Massague J, Bernard O, Soosairaiah J (September 2003). "Direct signaling by the BMP type II receptor via the cytoskeletal regulator LIMK1". J. Cell Biol. 162 (6): 1089–98. doi:10.1083/jcb.200212060. PMC 2172847. PMID 12963706.
  9. ^ Maekawa M, Ishizaki T, Boku S, Watanabe N, Fujita A, Iwamatsu A, Obinata T, Ohashi K, Mizuno K, Narumiya S (August 1999). "Signaling from Rho to the actin cytoskeleton through protein kinases ROCK and LIM-kinase". Science. 285 (5429): 895–8. doi:10.1126/science.285.5429.895. PMID 10436159.
  10. ^ Yokoo T, Toyoshima H, Miura M, Wang Y, Iida KT, Suzuki H, Sone H, Shimano H, Gotoda T, Nishimori S, Tanaka K, Yamada N (December 2003). "p57Kip2 regulates actin dynamics by binding and translocating LIM-kinase 1 to the nucleus". J. Biol. Chem. 278 (52): 52919–23. doi:10.1074/jbc.M309334200. PMID 14530263.
  11. ^ Wang JY, Frenzel KE, Wen D, Falls DL (August 1998). "Transmembrane neuregulins interact with LIM kinase 1, a cytoplasmic protein kinase implicated in development of visuospatial cognition". J. Biol. Chem. 273 (32): 20525–34. doi:10.1074/jbc.273.32.20525. PMID 9685409.
  12. ^ Edwards DC, Sanders LC, Bokoch GM, Gill GN (September 1999). "Activation of LIM-kinase by Pak1 couples Rac/Cdc42 GTPase signalling to actin cytoskeletal dynamics". Nat. Cell Biol. 1 (5): 253–9. doi:10.1038/12963. PMID 10559936. S2CID 25250183.
  13. ^ Dan C, Kelly A, Bernard O, Minden A (August 2001). "Cytoskeletal changes regulated by the PAK4 serine/threonine kinase are mediated by LIM kinase 1 and cofilin". J. Biol. Chem. 276 (34): 32115–21. doi:10.1074/jbc.M100871200. PMID 11413130.
  14. ^ Birkenfeld J, Betz H, Roth D (January 2003). "Identification of cofilin and LIM-domain-containing protein kinase 1 as novel interaction partners of 14-3-3 zeta". Biochem. J. 369 (Pt 1): 45–54. doi:10.1042/BJ20021152. PMC 1223062. PMID 12323073.

Further reading