>2a81B (B:) observed residues (from ATOM records)
mvfeensdevrvitldhpnkhnpfsrtletsvkdalaranaddsvravvvyggaersfsa
ggdfnevkqlsrsedieewidrvidlyqavlnvnkptiaavdgyaigmgfqfalmfdqrl
mastanfvmpelkhgigcsvgaailgfthgfstmqeiiyqcqsldaprcvdyrlvnqvve
ssalldaaitqahvmasypasafintkravnkpfihlleqtrdaskavhka