>3dxnA (A:) observed residues (from ATOM records)
lsdryqrvkklgsygevllckdktgaeraikiikkssvtttsnsgalldevavlkqldhp
nimklyeffedkrnyylvmevyrggelfdeiilrqkfsevdaavimkqvlsgttylhkhn
ivhrdlkpenlllesksdalikivdfglsahferlgtayyiapevlrkkydekcdvwscg
vilyillcgyppfggqtdqeilkrvekgkfsfdppdwtqvsdeakqlvklmltyepskri
saeealnhpwivkfcsqk