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Figure 1.
Figure 1. (A) A subset of the multiple sequence alignment of
the entire UPF0131 protein domain family (Pfam release 20.0)
aligned using Clustal X.[4] Representatives from bacteria,
archaea, and eukaryotes, indicated by their Swiss-Prot IDs, are
listed in black, magenta, and green, respectively. Amino acid
residues identical or similar in 67% of the entire family are
shown in red and green, respectively; conserved residues were
colored using the BOXSHADE server. The sequence numbering for
yftP from E. coli and the secondary structural elements found in
its NMR structure described in this paper (1XHS) are shown above
the alignment. (B) Stereoview of the solution structure of ytfP
showing the backbone atom superposition of the final ensemble of
10 conformers representing the solution structure of ytfP;  -strand
elements are shown in green,  -helices
are in red. (C) Stereoview of the ribbon representation of a
representative conformer (lowest CNS energy) from the ensemble
generated using MOLMOL.[5] The secondary structural elements are
labeled.
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