>6l56A (A:) observed residues (from ATOM records)
qtqprqnfhveseaginkqinmelyasyvyqsmymyfdrddvalpsfakyfkhnseeere
haeklmkyqnkrggrivlqdiqkpdldewgspleamqttlaleksvnqalldlhkiadkh
gdaqmmdflegeylkeqvdaieeisdhitnlkrvgtglgeymydketms