>1s7uA (A:) observed residues (from ATOM records)
gphsmryfetavsrpgleepryisvgyvdnkefvrfdsdaenpryeprapwmeqegpeyw
eretqkakgqeqwfrvslrnllgyynqsaggshtlqqmsgcdlgsdwrllrgylqfayeg
rdyialnedlktwtaadmaaqitrrkweqsgaaehykaylegecvewlhrylkngnatll
rtdspkahvthhprskgevtlrcwalgfypaditltwqlngeeltqdmelvetrpagdgt
fqkwasvvvplgkeqnytcrvyheglpepltlrwep