>5f12B (B:) observed residues (from ATOM records) akvlvlyysmyghietmaravaegaskvdgaevvvkrvpetmppqlfekaggktqtapva tpqeladydaiifgtptrfgnmsgqmrtfldqtgglwasgalygklasvfsstgtgggqe qtitstwttlahhgmvivpigyaaggtpygattiaggdgsrqpsqeelsiaryqgeyvag lavklng