>1zxnB (B:) observed residues (from ATOM records)
sveriyqkktqlehillrpdtyigsvelvtqqmwvydedvginyrevtfvpglykifdei
lvnaadnkqrdpkmscirvtidpennlisiwnngkgipvvehkvekmyvpalifgqllts
snydddekkvtggrngygaklcnifstkftvetasreykkmfkqtwmdnmgragemelkp
fngedytcitfqpdlskfkmqsldkdivalmvrraydiagstkdvkvflngnklpvkgfr
syvdmylkkviheqvnhrwevcltmsekgfqqisfvnsiatskggrhvdyvadqivtklv
dvvkkkkahqvknhmwifvnalienptfdsqtkenmtlqpksfgstcqlsekfikaaigc
givesilnwvkfkaqvqln