>4uduB (B:) observed residues (from ATOM records)
tgvsqnprhkitkrgqnvtfrcdpisehnrlywyrqtlgqgpefltyfqneaqleksrll
sdrfsaerpkgsfstleiqrteqgdsamylcasslggyeqyfgpgtrltvtedlknvfpp
evavfvpseaeishtqkatlvclatgfypdhvelswwvngkevhsgvctdpqplkeqpal
dsryalssrlrvsatfwqdprnhfrcqvqfyglsendewtqdrakpvtqivsaeawgr