>1xddA (A:) observed residues (from ATOM records)
gnvdlvflfdgsmslqpdefqkildfmkdvmkklsntsyqfaavqfstsyktefdfsdyv
kwkdpdallkhvkhmllltntfgainyvatevfreelgarpdatkvliiitdgeatdsgn
idaakdiiryiigigkhfqtkesqetlhkfaskpasefvkildtfeklkdlftelqkkiy
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