>3i2bF (F:) observed residues (from ATOM records)
rrcqaqvsrrisfsashrlyskflsdeenlklfgkcnnpnghghnykvvvtvhgeidpat
gmvmnladlkkymeeaimqpldhknldmdvpyfadvvsttenvavyiwdnlqkvlpvgvl
ykvkvyetdnnivvykge