a member of a family of RNA-binding proteins that possesses nucleolytic activity. A cytotoxic T cell granule-associated protein that has been shown to bind specifically to poly(A) homopolymers and to fragment DNA in permeabilized target cells. Members of this protein family may be involved in the induction of apoptosis. Two splice variant isoforms have been described. Note: This description may include information from UniProtKB.
SS: The number of records in which this modification site was determined using site-specific methods. SS methods include amino acid sequencing, site-directed mutagenesis, modification site-specific antibodies, specific MS strategies, etc.