>3dk5A (A:) observed residues (from ATOM records)
dtavlvlaagpgtrmrsdtpkvlhtlagrsmlshvlhaiaklapqrlivvlghdhqriap
lvgeladtlgrtidvalqdrplgtghavlcglsalpddyagnvvvtsgdtplldadtlad
liathravsaavtvltttlddpfygrivmaivevnagvyafdiaalrsalsrlssnnqqe
lyltdviailrsdgqtvhashvddsalvagvnnrvqlaelaselnrrvvaahqlagvtvv
dpattwidvdvtigrdtvihpgtqllgrtqiggrcvvgpdttltdvavgdgasvvrthgs
sssigdgaavgpftylrpgtalgadgklgafvevknstigtgtkvphltyvgdadigeys
nigassvfvnkrrttvgshvrtgsdtmfvapvtigdgaytgagtvvredvppgalavsag
pqrnienwvqrkrpgspaaqas