Evolutionary Divergence of Arabidopsis thaliana Classical Peroxidases
| Autor: | P. O. Mamoshina, E. V. Kupriyanova, T. A. Ezhova |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Molecular Sequence Data
Arabidopsis Biochemistry Evolution Molecular Sequence Homology Nucleic Acid Gene duplication Arabidopsis thaliana Amino Acid Sequence Selection Genetic Peptide sequence Gene Alleles chemistry.chemical_classification Genetics Polymorphism Genetic biology Brassicaceae General Medicine biology.organism_classification Amino acid chemistry Amino Acid Substitution Peroxidases biology.protein Peroxidase |
| Zdroj: | Biochemistry. Biokhimiia. 80(10) |
| ISSN: | 1608-3040 |
| Popis: | Polymorphisms of 62 peroxidase genes derived from Arabidopsis thaliana were investigated to evaluate evolutionary dynamics and divergence of peroxidase proteins. By comparing divergence of duplicated genes AtPrx53-AtPrx54 and AtPrx36-AtPrx72 and their products, nucleotide and amino acid substitutions were identified that were apparently targets of positive selection. These substitutions were detected among paralogs of 461 ecotypes from Arabidopsis thaliana. Some of these substitutions are conservative and matched paralogous peroxidases in other Brassicaceae species. These results suggest that after duplication, peroxidase genes evolved under the pressure of positive selection, and amino acid substitutions identified during our study provided divergence of properties and physiological functions in peroxidases. Our predictions regarding functional significance for amino acid residues identified in variable sites of peroxidases may allow further experimental assessment of evolution of peroxidases after gene duplication. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|