2ky5
Solution structure of the PECAM-1 cytoplasmic tail with DPCSolution structure of the PECAM-1 cytoplasmic tail with DPC
Template:ABSTRACT PUBMED 21464369
FunctionFunction
[PECA1_HUMAN] Induces susceptibility to atherosclerosis (By similarity). Cell adhesion molecule which is required for leukocyte transendothelial migration (TEM) under most inflammatory conditions. Tyr-690 plays a critical role in TEM and is required for efficient trafficking of PECAM1 to and from the lateral border recycling compartment (LBRC) and is also essential for the LBRC membrane to be targeted around migrating leukocytes. Prevents phagocyte ingestion of closely apposed viable cells by transmitting 'detachment' signals, and changes function on apoptosis, promoting tethering of dying cells to phagocytes (the encounter of a viable cell with a phagocyte via the homophilic interaction of PECAM1 on both cell surfaces leads to the viable cell's active repulsion from the phagocyte. During apoptosis, the inside-out signaling of PECAM1 is somehow disabled so that the apoptotic cell does not actively reject the phagocyte anymore. The lack of this repulsion signal together with the interaction of the eat-me signals and their respective receptors causes the attachment of the apoptotic cell to the phagocyte, thus triggering the process of engulfment). Isoform Delta15 is unable to protect against apoptosis. Modulates BDKRB2 activation. Regulates bradykinin- and hyperosmotic shock-induced ERK1/2 activation in human umbilical cord vein cells (HUVEC).[1] [2] [3]
About this StructureAbout this Structure
2ky5 is a 1 chain structure with sequence from Homo sapiens. Full experimental information is available from OCA.
ReferenceReference
- ↑ Paddock C, Lytle BL, Peterson FC, Holyst T, Newman PJ, Volkman BF, Newman DK. Residues within a lipid-associated segment of the PECAM-1 cytoplasmic domain are susceptible to inducible, sequential phosphorylation. Blood. 2011 Apr 4. PMID:21464369 doi:10.1182/blood-2010-11-317867
- ↑ Brown S, Heinisch I, Ross E, Shaw K, Buckley CD, Savill J. Apoptosis disables CD31-mediated cell detachment from phagocytes promoting binding and engulfment. Nature. 2002 Jul 11;418(6894):200-3. PMID:12110892 doi:10.1038/nature00811
- ↑ Bergom C, Paddock C, Gao C, Holyst T, Newman DK, Newman PJ. An alternatively spliced isoform of PECAM-1 is expressed at high levels in human and murine tissues, and suggests a novel role for the C-terminus of PECAM-1 in cytoprotective signaling. J Cell Sci. 2008 Apr 15;121(Pt 8):1235-42. doi: 10.1242/jcs.025163. PMID:18388311 doi:10.1242/jcs.025163
- ↑ Dasgupta B, Dufour E, Mamdouh Z, Muller WA. A novel and critical role for tyrosine 663 in platelet endothelial cell adhesion molecule-1 trafficking and transendothelial migration. J Immunol. 2009 Apr 15;182(8):5041-51. doi: 10.4049/jimmunol.0803192. PMID:19342684 doi:10.4049/jimmunol.0803192