>5fk9B (B:) observed residues (from ATOM records)
dtgvsqnprhkitkrgqnvtfrcdpisehnrlywyrqtlgqgpefltyfqneaqleksrl
lsdrfsaerpkgsfstleiqrteqgdsamylcasslggyeqyfgpgtrltvtedlknvfp
pevavfvpseaeishtqkatlvclatgfypdhvelswwvngkevhsgvctdpqplkeqpa
lndsryalssrlrvsatfwqdprnhfrcqvqfyglsendewtqdrakpvtqivsaeawgr
a