>2b2nB (B:) observed residues (from ATOM records)
acatlvaeiaerhagpvvliapdmqnalrlhdeisqftdqmvmnladwetlpydsfsphq
diissrlstlyqlptmqrgvlivpvntlmqrvcphsflhghalvmkkgqrlsrdalrtql
dsagyrhvdqvmehgeyatrgalldlfpmgselpyrldffddeidslrvfdvdsqrtlee
veainllpahefptdkaaielfrsqwrdtfevkrdpehiyqqvskgtlpagieywqplff
seplpplfsyfpantllvntgdletsaerfqadtlarfenrgvdpmrpllppqslwlrvd
elfselkna