>1e7sA (A:) observed residues (from ATOM records)
kqrvfiaghrgmvgsairrqleqrgdvelvlrtrdelnlldsravhdffaseridqvyla
aakvggivanntypadfiyqnmmiesniihaahqndvnkllflgssciypklakqpmaes
ellqgtleptnepyaiariagiklcesynrqygrdyrsvmptnlygphdnfhpsnshvip
allrrfheataqsapdvvvwgsgtpmreflhvddmaaasihvmelahevwlentqpmlsh
invgtgvdctirelaqtiakvvgykgrvvfdaskpdgtprklldvtrlhqlgwyheisle
aglastyqwflenq