FEATURES

FAMILY

DESCRIPTION

Also known as JAML_MOUSE, Jaml, Amica1, Gm638. 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. Homodimer; active form in leukocyte-endothelial cell adhesion. Interacts (homodimeric form) with CXADR. Interacts (via cytoplasmic domain) with the PI3 kinase; upon CXADR-binding. Interacts with ITGA4 and ITGB1; integrin alpha-4/beta-1 may regulate leukocyte to endothelial cells adhesion by controlling JAML homodimerization.

EXTERNAL LINKS

Jaml

Mutations

Mutation(s) distribution

Mutations table