>1h57A (A:) observed residues (from ATOM records)
qltptfydnscpnvsnivrdtivnelrsdpriaasilrlhfhdcfvngcdasilldntts
frtekdafgnansargfpvidrmkaavesacprtvscadlltiaaqqsvtlaggpswrvp
lgrrdslqafldlananlpapfftlpqlkdsfrnvglnrssdlvalsgghtfgknqcrfi
mdrlynfsntglpdptlnttylqtlrglcplngnlsalvdfdlrtptifdnkyyvnleeq
kgliqsdqelfsspnatdtiplvrsfanstqtffnafveamdrmgnitpltgtqgqirln
crvvns