>1fr7A (A:) observed residues (from ATOM records)
wgygkhngpehwhkdfpiakgerqspvdidthtakydpslkplsvsydqatslrilnngh
afnvefddsqdkavlkggpldgtyrliqshlhmgsldgqgsehtvdkkkyaaelhlvhwn
tkygdfgkavqqpdglavlgiflkvgsakpglqkvvdvldsiktkgksadftnfdprgll
pesldywtypgslttppllecvtwivlkepisvsseqvlkfrklnfngegepeelmvdnw
rpaqplknrqikasfk