>3d44A (A:) observed residues (from ATOM records)
ntprevtlhflrtaghpltrwalqrqppspkqleeeflkipsnfvspedldipghaskdr
ykdilpnpqsrvclgraqdgdyinanyirgydgkekvyiatqgpmpntvsdfwemvwqee
vslivmltqlrcvhywpteeetygpfqiriqdmkecpeytvrqltiqyqeerrsvkhilf
sawpdhqtpesagpllrlvaeveespetaahpgpivvhssagigrtgcfiatrigcqqlk
argevdilgivcqlrldrggmiqtaeqyqflhhtlalyagqlpe