>5xd6A (A:) observed residues (from ATOM records)
hhhhqpisvaaipadelrditdnygsksligegsygrvfygilksgkaaaikkldsskqp
dqeflaqvsmvsrlrqenvvallgycvdgplrvlayeyapngslhdilhgraqpgpvlsw
hqrvkiavgaargleylhekanphvihrdikssnvllfdddvakiadfdlsnqgyhapey
amtglstksdvysfgvvllelltgrkpvdhtlprgqqsvvtwatpklsedkvkqcvdarl
ngeyppkavaklaavaalcvqyeadfrpnmsivvkalqplln