>4pifA (A:) observed residues (from ATOM records)
aikvgawggnggsafdmgpayriisvkifsgdvvdgvdvtftyygktetrhyggsggtph
eivlqegeylvgmagevanyhgavvlgklgfstnkkaygpfgntggtpfslpiaagkisg
ffgrggkfldaigvylepl