Disease:Genetic variation in HAVCR2 may influence susceptibility to rheumatoid arthritis (RA) [MIM:180300]. RA is an inflammatory disease , primarily of the joints , with autoimmune features and a complex genetic component. It is characterized by inflammation of synovial tissues and the formation of rheumatoid pannus , which is capable of eroding adjacent cartilage and bone , causing subsequent joint destruction. ,Function:Regulates macrophage activation. Inhibits T-helper type 1 lymphocyte (Th1) -mediated auto- and alloimmune responses and promotes immunological tolerance. May be also involved in T-cell homing. Receptor for LGALS9. ,similarity:Belongs to the immunoglobulin superfamily. TIM family. ,similarity:Contains 1 Ig-like V-type (immunoglobulin-like) domain. ,tissue specificity:T-helper type 1 lymphocyte (Th1) -specific. ,
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