3mj7
From Proteopedia
Crystal structure of the complex of JAML and Coxsackie and Adenovirus receptor, CAR
Structural highlights
Function[CXAR_MOUSE] Component of the epithelial apical junction complex that is essential for the tight junction integrity. Proposed to function as a homophilic cell adhesion molecule. Recruits MPDZ to intercellular contact sites. Probably involved in transepithelial migration of polymorphonuclear leukocytes (PMN) through adhesive interactions with AMICA1/JAML located in the plasma membrane of PMN (By similarity).[1] [2] [3] In vitro, acts as a receptor for group B coxsackieviruses and subgroup C of adenoviruses (AD2 and AD5).[4] [5] [6] Evolutionary ConservationCheck, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMedCoxsackie and adenovirus receptor (CAR) is the primary cellular receptor for group B coxsackieviruses and most adenovirus serotypes and plays a crucial role in adenoviral gene therapy. Recent discovery of the interaction between junctional adhesion molecule-like protein (JAML) and CAR uncovered important functional roles in immunity, inflammation, and tissue homeostasis. Crystal structures of JAML ectodomain (2.2 angstroms) and its complex with CAR (2.8 angstroms) reveal an unusual immunoglobulin-domain assembly for JAML and a charged interface that confers high specificity. Biochemical and mutagenesis studies illustrate how CAR-mediated clustering of JAML recruits phosphoinositide 3-kinase (P13K) to a JAML intracellular sequence motif as delineated for the alphabeta T cell costimulatory receptor CD28. Thus, CAR and JAML are cell signaling receptors of the immune system with implications for asthma, cancer, and chronic nonhealing wounds. The molecular interaction of CAR and JAML recruits the central cell signal transducer PI3K.,Verdino P, Witherden DA, Havran WL, Wilson IA Science. 2010 Sep 3;329(5996):1210-4. PMID:20813955[7] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
|