PR:000064632	hRB1/var:R661W/InitMet-	retinoblastoma-associated protein sequence variant R661W, initiator methionine removed form (human)	hRB1/var:R661W/InitMet-|UniProtKB:P06400, 2-928, Arg-661, CHEBI:29954	PR:000000001	NCBITaxon:9606	HGNC:9884	PR:P06400		Reactome:R-HSA-9659801