>4i9nB (B:) observed residues (from ATOM records)
aalkdqlihnllkeehvpqnkitvvgvgavgmacaisilmkdladelalvdvmedklkge
mmdlqhgslflrtpkivsgkdysvtansklviitagarlnlvqrnvnifkfiipnvvkys
phckllvvsnpvdiltyvawkisgfpknrvigsgcnldsarfrylmgerlgvhalschgw
ilgehgdssvpvwsgmnvagvslktlhpelgtdadkeqwkqvhkqvvdsayeviklkgyt
twaiglsvadlaesimknlrrvhpistmlkglygikedvflsvpcvlgqngisdvvkvtl
tseeeahlkksadtlwgiqkelqf