>6fxqB (B:) observed residues (from ATOM records)
ktldgwfclhdfrsidwaawrelnpgnqelmlnelshflsdmeitknigegehtiysilg
qkadlvfftlrdslealnevenrfnklaiadyllptysyisvvelsyqnkgvrarlypal
ppkkhicfypmskkrdgadnwymlpmeerqqlirdhgligrsyagkvqqiiggsigfddy
ewgvtlfsddalefkrivtemrfdeasaryaefgsffignlllseqlsklfti