>4axmB (B:) observed residues (from ATOM records)
aprsvdwrekgyvtpvknqgqcgscwafsatgalegqmfrktgrlislseqnlvdcsgpq
gnegcngglmdyafqyvqdnggldseesypyeateesckynpkysvandtgfvdipkqek
almkavatvgpisvaidaghesflfykegiyfepdcssedmdhgvlvvgygfestednnk
ywlvknswgeewgmggyvkmakdrrnhcgiasaasyptv