>3pk7D (D:) observed residues (from ATOM records)
slkirdaytivtcpgrnfvtlkivtesgthgigdatlngremavaayldehvvpaligrd
agriedtwqylyrgaywrrgpvtmtaiaavdmalwdikakaagmplyqllggksrervmt
yahctgqtiedclgevarhvelgyravrvqsgvpgiesslpaehvwstekylnhapklfa
avrerfgddlhvlhdvhhrltpieaarlgkavepyhlfwledcvpaenqeslrlirehtt
tplaigevfnsihdcreliqnqwidyirmplthgggitamrrvadlaslyhvrtgfhgpt
dlspvclgaaihfdtwvpnfgiqehmphtdetdavfphdyrfedghflagespghgvdid
eelaakypyeraslpvnrledgtlwhw