3g7c
Structure of the Phosphorylation Mimetic of Occludin C-term Tail
Structural highlights
DiseaseOCLN_HUMAN Defects in OCLN are the cause of band-like calcification with simplified gyration and polymicrogyria (BLCPMG) [MIM:251290; also known as pseudo-TORCH syndrome. BLCPMG is a neurologic disorder with characteristic clinical and neuroradiologic features that mimic intrauterine TORCH infection in the absence of evidence of infection. Affected individuals have congenital microcephaly, intracranial calcifications, and severe developmental delay.[1] FunctionOCLN_HUMAN May play a role in the formation and regulation of the tight junction (TJ) paracellular permeability barrier. It is able to induce adhesion when expressed in cells lacking tight junctions.[2] 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 PubMedThe molecular function of occludin, an integral membrane component of tight junctions, remains unclear. VEGF-induced phosphorylation sites were mapped on occludin by combining MS data analysis with bioinformatics. In vivo phosphorylation of Ser490 was validated and protein interaction studies combined with crystal structure analysis suggest that Ser490 phosphorylation attenuates the interaction between occludin and ZO-1. This study demonstrates that combining MS data and bioinformatics can successfully identify novel phosphorylation sites from limiting samples. Identification and analysis of occludin phosphosites: a combined mass spectrometry and bioinformatics approach.,Sundstrom JM, Tash BR, Murakami T, Flanagan JM, Bewley MC, Stanley BA, Gonsar KB, Antonetti DA J Proteome Res. 2009 Feb;8(2):808-17. PMID:19125584[3] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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