>5xlbA (A:) observed residues (from ATOM records)
gnpvicmghhavangtmvktladdqvevvtaqelvesqnlpelcpsplrlvdgqtcdiin
galgspgcdhlngaewdvfierpnavdtcypfdvpeyqslrsilanngkfefiaeefqwn
tvkqngksgackranvndffnrlnwlvksdgnayplqnltkinngdyarlyiwgvhhpst
dteqtnlyknnpggvtvstktsqtsvvpnigsrplvrglssrvsfywtivepgdlivfnt
ignliaprghyklnnqkkstilntaipigscvskchtdkgslsttkpfqnisriavgdcp
ryvkqgslklatgmrnipe