>1s7rA (A:) observed residues (from ATOM records) gphslryfvtavsrpglgeprymevgyvddtefvrfdsdaenpryeprarwmeqegpeyw eretqkakgneqsfrvdlrtllgyynqskggshtiqvisgcevgsdgrllrgyqqyaydg cdyialnedlktwtaadmaalitkhkweqageaerlraylegtcvewlrrylkngnatll rtdspkahvthhsrpedkvtlrcwalgfypaditltwqlngeeliqdmelvetrpagdgt fqkwasvvvplgkeqyytchvyhqglpepltlrwep