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Chem Biol Interact May 30, 2011; 191 (1-3): 113-21.

Comparative studies of vertebrate aldehyde dehydrogenase 3: sequences, structures, phylogeny and evolution. Evidence for a mammalian origin for the ALDH3A1 gene.

Holmes RS , Hempel J .

Mammalian ALDH3 genes (ALDH3A1, ALDH3A2, ALDH3B1 and ALDH3B2) encode enzymes of peroxidic and fatty aldehyde metabolism. ALDH3A1 also plays a major role in anterior eye tissue UV-filtration. BLAT and BLAST analyses were undertaken of several vertebrate genomes using rat, chicken and zebrafish ALDH3-like amino acid sequences. Predicted vertebrate ALDH3 sequences and structures were highly conserved, including residues involved in catalysis, coenzyme binding and enzyme structure as reported by Liu et al. [27] for rat ALDH3A1. Phylogeny studies of human, rat, opossum, platypus, chicken, xenopus and zebrafish ALDH3-like sequences supported three hypotheses: (1) the mammalian ALDH3A1 gene was generated by a tandem duplication event of an ancestral vertebrate ALDH3A2 gene; (2) multiple mammalian and chicken ALDH3B-like genes were generated by tandem duplication events within genomes of related species; and (3) vertebrate ALDH3A and ALDH3B genes were generated prior to the appearance of bony fish more than 500 million years ago.

PubMed ID: 21296057
Article link: Chem Biol Interact

Species referenced: Xenopus laevis
Genes referenced: aldh3a2 aldh3b1 tbx2