>2qexP (P:) observed residues (from ATOM records) tdlsaqkrlaadvldvgknrvwfnperqgdiadaitredvrelvdegaiqakdkkgnsrg rarerqkkrayghqkgagsrkgkagarqnskedwesriraqrtklrelrdegtlsssqyr dlydkagggefdsvadleryida