>4bb0A (A:) observed residues (from ATOM records)
dpllpgfdyltlhtsaarlrvavkgsgppllllhgypqthlawhriaprlaedysvvlad
lrgygesraldgadyskaalardqletmgqlgferfavighdrgarvgyrlaldhpqava
afvsltvvpildnwaavnkvfalnayhwfllaqpydlperligadpehfldytlrrmaqg
rdiyhpqalesyrrafrdpavrhamcedyraavgvdadadqadrdagrrlqcpvqvlwee
rpyaagqhpleiwktwagqvegaaigashmlpedapdavlehllgflashrealr