Multiple sequence alignment to show the conservation of Ser-157 and
Tyr-261 (FomC numbering) in all the clustered ADHs identified from
phylogenetic analysis. The conserved serine and tyrosine are indicated by
boxes. Pelobacter propionicus ADH, Staphylothermus marinus
ADH, and Paracoccus denitrificans ADH belong to the group III
metal-dependent ADH family, but are not clustered along with FomC, PhpC, and
DhpG.