Structural highlights
Function[COTL1_HUMAN] Binds to F-actin in a calcium-independent manner. Has no direct effect on actin depolymerization.[1] 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 PubMedHuman coactosin-like protein is an actin filament binding protein but does not bind to globular actin. It associates with 5-Lipoxygenase both in vivo and in vitro, playing important roles in modulating the activities of actin and 5-Lipoxygenase. Coactosin counteracts the capping activity of capping protein which inhibits the actin polymerization. We determined the crystal structures of human coactosin-like protein by multi-wavelength anomalous dispersion method. The structure showed a high level of similarity to ADF-H domain, although their amino acid sequences share low degree of homology. A few conserved hydrophobic residues that may contribute to the folding were identified. This structure suggests coactosin-like protein bind to F-actin in a different way from ADF/Cofilin family. Combined with the information from previous mutagenesis studies, the binding sites for F-actin and 5-Lipoxygenase were analyzed, respectively. These two sites are quite close, which might prevent F-actin and 5-Lipoxygenase from binding to coactosin simultaneously. Crystal structure of human coactosin-like protein.,Liu L, Wei Z, Wang Y, Wan M, Cheng Z, Gong W J Mol Biol. 2004 Nov 19;344(2):317-23. PMID:15522287[2] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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