>3i2bA (A:) observed residues (from ATOM records) rrcqaqvsrrisfsashrlyskflsdeenlklfgkcnnpnghghnykvvvtvhgeidpat gmvmnladlkkymeeaimqpldhknldmdvpyfadvvsttenvavyiwdnlqkvlpvgvl ykvkvyetdnnivvykge