>3cc7P (P:) observed residues (from ATOM records)
tdlsaqkrlaadvldvgknrvwfnperqgdiadaitredvrelvdegaiqakdkkgnsrg
rarerqkkrayghqkgagsrkgkagarqnskedwesriraqrtklrelrdegtlsssqyr
dlydkagggefdsvadleryida