>1bsvA (A:) observed residues (from ATOM records)
kqrvfiaghrgmvgsairrqleqrgdvelvlrtrdelnlldsravhdffaseridqvyla
aakvggivanntypadfiyqnmmiesniihaahqndvnkllflgssciypklakqpmaes
ellqgtleptnepyaiakiagiklcesynrqygrdyrsvmptnlygphdnfhpsnshvip
allrrfheataqnapdvvvwgsgtpmreflhvddmaaasihvmelahevwlentqpmlsh
invgtgvdctirelaqtiakvvgykgrvvfdaskpdgtprklldvtrlhqlgwyheisle
aglastyqwflenqdrf