>4rxcA (A:) observed residues (from ATOM records)
mpmqmfmqvydeiqmflleelelkfdmdpnrvrylrkmmdttclggkynrgltvidvaes
lldgarrkrvlhdacvcgwmieflqahylveddimdnsvtrrgkpcwyrhpdvtvqcain
dglllkswthmmamhffadrpflqdllcrfnrvdyttavgqlydvtsmfdsnkldpdvsq
ptdfaeftlsnykrivkyktayytyllplvmglivsealptvdmgvteelamlmgeyfqv
qddvmdcftpprlgkvgtdiqdakcswlavtflakassaqvaefkanygsgdsekvatvr
rlyeeadlqgdyvayeaavaeqvkelieklrlcspgfaasvetlwgktykr