>1a97A (A:) observed residues (from ATOM records)
ekyivtwdmlqiharklasrlmpseqwkgiiavsrgglvpgallarelgirhvdtvaiss
ydrelkvlkraegdgegfividdlvdtggtavairemypkahfvtifakpagrplvddyv
vdipqdtwieqpwdmgvvfvppis