>2bb3B (B:) observed residues (from ATOM records)
ghmiwivgsgtcrgqtterakeiieraeviygsrralelagvvddsrarilrsfkgdeir
rimeegrerevavistgdpmvaglgrvlreiaedveikiepaissvqvalarlkvdlsev
avvdchaeltellkyrhlliladshfplerlgkrrvvllenlcmegeriregnadsiele
sdytiifverev