>1x7xA (A:) observed residues (from ATOM records)
kpqfpgasaefidklefiqpnvisgipiyrvmdrqgqiinpsedphlpkekvlklyksmt
llntmdrilyesqrqgrisfymtnygeegthvgsaaaldntdlvfgqyreagvlmyrdyp
lelfmaqcygnisdlgkgrqmpvhygckerhfvtissplatqipqavgaayaakrananr
vvicyfgegaasegdahagfnfaatlecpiiffcrnngyaistptseqyrgdgiaargpg
ygimsirvdgndvfavynatkearrravaenqpflieamtyrdhpisrlrhyllsqgwwd
eeqekawrkqsrrkvmeafeqaerkpkpnpnllfsdvyqempaqlrkqqeslarhlqtyg
ehypldhfdk