>1zt1A (A:) observed residues (from ATOM records)
mgphslryfhtavsrpglgkprfisvgyvddtqfvrfdsdaenpryeprvrwmeqvepey
werntqiakgneqifrvnlrtalryynqsaggshtfqrmygcevgsdwrllrgyeqyayd
gcdyialnedlktwtaadmaalitkhkweqagdaerdraylegtcvewlrrylqlgnrtd
spkahvtrhsrpedkvtlrcwalgfypaditltwqlngeeltqdmelvetrpagdgtfqk
wasvvvplgkeqyytchvyhqglpepltlrwep