>5o4lA (A:) observed residues (from ATOM records)
atvllevpfsargdripdavaelrtrepirkvrtitgaeawlvssyalctqvledrrfsm
ketaaagaprlnaltvppevvnnmgniadaglrkavmkaitpkapgleqflrdtanslld
nlitegapadlrndfadplatalhckvlgipqedgpklfrslsiafmssadpipaakinw
drdieymagilenpnittglmgelsrlrkdpayshvsdelfatigvtffgagvistgsfl
ttalisliqrpqlrnllhekpelipagveellrinlsfadglprlatadiqvgdvlvrkg
elvlvlleganfdpehfpnpgsieldrpnptshlafgrgqhfcpgsalgrrhaqigieal
lkkmpgvdlavpidqlvwrtrfqrriperlpvlw