>1x7zA (A:) observed residues (from ATOM records)
kpqfpgasaefidklefiqpnvisgipiyrvmdrqgqiinpsedphlpkekvlklyksmt
llntmdrilyesqrqgrisfymtnygeegthvgsaaaldntdlvfgqyreagvlmyrdyp
lelfmaqcygnisdlgkgrqmpvhygckerhfvtissplatqipqavgaayaakrananr
vvicyfgegaasegdahagfnfaatlecpiiffcrnngyaistptseqyrgdgiaargpg
ygimsirvdgndvfavynatkearrravaenqpflieamtyrighhdtsddssayrvnyw
dkqdhpisrlrhyllsqgwwdeeqekawrkqsrrkvmeafeqaerkpkpnpnllfsdvyq
empaqlrkqqeslarhlqtygehypldhfdk