>3bt2A (A:) SEQRES residues rssnelhqvpsncdclnggtcvsnkyfsnihwcncpkkfggqhceidksktcyegnghfy rgkastdtmgrpclpwnsatvlqqtyhahrsdalqlglgkhnycrnpdnrrrpwcyvqvg lkplvqecmvhdcad