>1drtA (A:) observed residues (from ATOM records)
tsvdctaygpelralaarlprtpradlyafldaahtaaaslpgalataldtfnaegsedg
hlllrglpveadadlpttpsstpapedrslltmeamlglvgrrlglhtgyrelrsgtvyh
dvypspgahhlssetsetllefhtemayhrlqpnyvmlacsradhertaatlvasvrkal
plldertrarlldrrmpccvdvafriaqvkplygdaddpflgydrellapedpadkeava
alskaldevteavylepgdllivdnfrtthartpfsprwdgkdrwlhrvyirtdrngqls
ggeragdvvaftprg