CASP2 GI:39995061 caspase 2 isoform 3 1 maapsagsws tfqhkelmaa drgrrilgvc gmhphhqetl kknrvvlakq 50 51 lllsellehl lekdiitlem reliqakvgs fsqnvellnl lpkrgpqafd 100 101 afcealhs