>1x03A (A:) observed residues (from ATOM records)
gtkldddfkemerkvdvtsravmeimtktieylqpnpasraklsmipgypqaeallaeam
lkfgrelgddcnfgpalgevgeamrelsevkdsldievkqnfidplqnlhdkdlreiqhh
lkklegrrldfdykkkrqgkipdeelrqalekfdeskeiaessmfnllemdieqvsqlsa
lvqaqleyhkqavqilqqvtvrleerirqa