Abstract
Abstract—Comparative phylogenetic analysis of NAD+-dependent formate dehydrogenases (NAD+–FDH) genes, which have been detected in all available genomes of methylotrophs of the genera Ancylobacter, Starkeya and Angulomicrobium, as well as in other members of the family Xanthobacteraceae (Xanthobacter, Aquabacter, Azorhizobium), was carried out. The position of Xanthobacteraceae on the tree constructed based on comparison of NAD+–FDH amino acid sequences was found to correlate with the 16S rRNA gene-based phylogeny. The sequences of the NAD+–FDH proteins of the genera Ancylobacter, Starkeya, and Angulomicrobium exhibited 87.8–98.3% identity, indicating that this protein is very conservative within this group of methylotrophs. For the first time, analysis of the NAD+–FDH functional genes is recommended as a supplementary criterion for interspecies differentiation between methylotrophic bacteria of the genus Ancylobacter.
Published Version
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