function:RNA-binding protein. Possesses nucleolytic activity against cytotoxic lymphocyte target cells. May be involved in apoptosis.,PTM:TIA-1 major granule-associated species is a 15-kDa protein (p15-TIA-1) that seems to be derived by proteolytic processing from the C-terminus of p40-TIA-1.,similarity:Contains 3 RRM (RNA recognition motif) domains.,subcellular location:Cytoplasmic granules of cytolytic T-lymphocytes.,
Nucleus . Cytoplasm . Cytoplasm, Stress granule . Accumulates in cytoplasmic stress granules (SG) following cellular damage (PubMed:15371533, PubMed:10613902). Recruitment to SG is induced by Zn(2+) (By similarity). .
Expressed in heart, small intestine, kidney, liver, lung, skeletal muscle, testes, pancreas, and ovary (at protein level).