>2ethB (B:) observed residues (from ATOM records)
hmdaleifktlfslvmrfssylpsneeisdmkttelyaflyvalfgpkkmkeiaeflstt
ksnvtnvvdslekrglvvremdpvdrrtyrvvltekgkeifgeilsnfesllksvlekfs
eedfkvvsegfnrmvealsre