>1nexB (B:) observed residues (from ATOM records)
lkrdlitslpfeislkifnylqfediinslgvsqnwnkiirkstslwkkllisenfvspk
gfnslnlklsqkypklsqqdrlrlsflenifilknwynpkfvpqrttlrghmtsvitclq
fednyvitgaddkmirvydsinkkfllqlsghdggvwalkyahggilvsgstdrtvrvwd
ikkgccthvfeghnstvrcldiveyknikyivtgsrdntlhvwklpkdyplvfhtpeenp
yfvgvlrghmasvrtvsghgnivvsgsydntlivwdvaqmkclyilsghtdriystiydh
erkrcisasmdttiriwdlengelmytlqghtalvgllrlsdkflvsaaadgsirgwdan
dysrkfsyhhtnlsaittfyvsdnilvsgsenqfniynlrsgklvhanilkdadqiwsvn
fkgktlvaavekdgqsfleildfs