Structural highlights
3f6q is a 2 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
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| Ligands: | , , |
| Gene: | ILK, ILK1, ILK2 (Homo sapiens), LIMS1, PINCH, PINCH1 (Homo sapiens) |
| Activity: | Non-specific serine/threonine protein kinase, with EC number 2.7.11.1 |
| Resources: | FirstGlance, OCA, RCSB, PDBsum |
Function
[ILK_HUMAN] Receptor-proximal protein kinase regulating integrin-mediated signal transduction. May act as a mediator of inside-out integrin signaling. Focal adhesion protein part of the complex ILK-PINCH. This complex is considered to be one of the convergence points of integrin- and growth factor-signaling pathway. Could be implicated in mediating cell architecture, adhesion to integrin substrates and anchorage-dependent growth in epithelial cells. Phosphorylates beta-1 and beta-3 integrin subunit on serine and threonine residues, but also AKT1 and GSK3B. [LIMS1_HUMAN] Adapter protein in a cytoplasmic complex linking beta-integrins to the actin cytoskeleton, bridges the complex to cell surface receptor tyrosine kinases and growth factor receptors. Involved in the regulation of cell survival, cell proliferation and cell differentiation.
Evolutionary Conservation
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.
Publication Abstract from PubMed
The heterotrimeric complex between integrin-linked kinase (ILK), PINCH, and parvin is an essential signaling platform, serving as a convergence point for integrin and growth-factor signaling and regulating cell adhesion, spreading, and migration. We report a 1.6-A crystal structure of the ILK ankyrin repeat domain bound to the PINCH1 LIM1 domain, revealing the molecular basis of ILK-PINCH interactions and providing a structural description of this region of ILK. This structure identifies 5 ankyrin repeats in ILK, explains previous deletion mutagenesis data, permits identification of ILK and PINCH1 point mutations that disrupt the interaction, shows how zincs are coordinated by PINCH1 LIM1, and suggests that conformational flexibility and twisting between the 2 zinc fingers within the LIM1 domain may be important for ILK binding. These data provide an atomic-resolution description of a key interaction in the ILK-PINCH-parvin scaffolding complex.
The structural basis of integrin-linked kinase-PINCH interactions.,Chiswell BP, Zhang R, Murphy JW, Boggon TJ, Calderwood DA Proc Natl Acad Sci U S A. 2008 Dec 30;105(52):20677-82. Epub 2008 Dec 12. PMID:19074270[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Chiswell BP, Zhang R, Murphy JW, Boggon TJ, Calderwood DA. The structural basis of integrin-linked kinase-PINCH interactions. Proc Natl Acad Sci U S A. 2008 Dec 30;105(52):20677-82. Epub 2008 Dec 12. PMID:19074270 doi:0811415106
