Thompson CE, Freitas LB, Salzano FM. Molecular evolution and functional divergence of alcohol dehydrogenases in animals, fungi and plants.
Genet Mol Biol 2018;
41:341-354. [PMID:
29668010 PMCID:
PMC5913725 DOI:
10.1590/1678-4685-gmb-2017-0047]
[Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Accepted: 06/19/2017] [Indexed: 12/22/2022] Open
Abstract
Alcohol dehydrogenases belong to the large superfamily of medium-chain
dehydrogenases/reductases, which occur throughout the biological world and are
involved with many important metabolic routes. We considered the phylogeny of
190 ADH sequences of animals, fungi, and plants. Non-class III
Caenorhabditis elegans ADHs were seen closely related to
tetrameric fungal ADHs. ADH3 forms a sister group to amphibian, reptilian, avian
and mammalian non-class III ADHs. In fishes, two main forms are identified: ADH1
and ADH3, whereas in amphibians there is a new ADH form (ADH8). ADH2 is found in
Mammalia and Aves, and they formed a monophyletic group. Additionally, mammalian
ADH4 seems to result from an ADH1 duplication, while in Fungi, ADH formed
clusters based on types and genera. The plant ADH isoforms constitute a basal
clade in relation to ADHs from animals. We identified amino acid residues
responsible for functional divergence between ADH types in fungi, mammals, and
fishes. In mammals, these differences occur mainly between ADH1/ADH4 and
ADH3/ADH5, whereas functional divergence occurred in fungi between ADH1/ADH5,
ADH5/ADH4, and ADH5/ADH3. In fishes, the forms also seem to be functionally
divergent. The ADH family expansion exemplifies a neofunctionalization process
where reiterative duplication events are related to new activities.
Collapse