Skip to main content
. 2004 Jun 22;381(Pt 1):137–146. doi: 10.1042/BJ20040003

Figure 7. Multiple alignment of SOR sequences.

Figure 7

#, conserved cysteine residues; *, His-Glu-Xaa-Xaa-His motif known from proteins with mono- and di-iron oxo clusters; †, putative iron-binding residue found in biopterin-dependent tyrosine hydroxylases [35]; cylinders, predicted α-helical regions; open arrows, β-sheet regions for the Acidianus ambivalens SOR. Ac.ambi., Acidianus ambivalens (GenBank® accession number X56616); Ac. S5, Acidianus sp. strain S5 (GenBank® accession number AF267286); Su.toko., Sulfolobus tokodaii (GenBank® accession number NC_003106); Fe.acid., Ferroplasma acidarmanus (Faci1674; GenBank® accession number NZ_AABC02000001); Aq.aeol., Aquifex aeolicus (GenBank® accession number NC_000918). Consens., consensus sequence. Immediately upstream of the Ferroplasma acidarmanus Faci1674 open reading frame, an in-frame stop codon was found (X, position 49). It was treated as an unknown residue, because of the similarity of the deduced amino acid sequences of the upstream region to the other SOR sequences. It is not known whether this represents a pseudogene or whether Ferroplasma acidarmanus produces active SOR under suitable conditions. Black shading indicates identical residues, and grey shading indicates conservative exchanges in at least four of the sequences.