AMICA transmembrane protein of the plasma membrane of leukocytes that control their migration and activation through interaction with CXADR, a plasma membrane receptor found on adjacent epithelial and endothelial cells. The interaction between both receptors mediates the activation of gamma-delta T-cells, a subpopulation of T-cells residing in epithelia and involved in tissue homeostasis and repair. Upon epithelial CXADR-binding, JAML induces downstream cell signaling events in gamma-delta T-cells through PI3-kinase and MAP kinases. It results in proliferation and production of cytokines and growth factors by T-cells that in turn stimulate epithelial tissues repair. It also controls the transmigration of leukocytes within epithelial and endothelial tissues through adhesive interactions with epithelial and endothelial CXADR.
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Protein Aliases: adhesion molecule AMICA; Adhesion molecule interacting with CXADR antigen 1; adhesion molecule, interacts with CXADR antigen 1; Dendritic cell-specific protein CREA7-1; dendritic-cell specific protein CREA7-1; dendritic-cell specific protein CREA7-4; Junctional adhesion molecule-like
Gene Aliases: AMICA; AMICA1; CREA7-1; CREA7-4; Gm638; JAML; UNQ722/PRO1387
UniProt ID: (Human) Q86YT9
Entrez Gene ID: (Human) 120425