>2r93D (D:) observed residues (from ATOM records)
vststfqtrrrrlkkveeeenaatlqlgqefqlkqinhqgeeeelialnlsearlvikea
lverrrafkrsqkktrekelesidvlleqttggnnkdlkntmqyltnfsrfrdqetvgav
iqllkstglhpfevaqlgslacdtadeaktlipslnnkisddelerilkelsnletly