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A deduced Thermomonospora curvata protein containing serine/threonine protein kinase and WD-repeat domains
1Institute of Microbiology, Academy of Sciences of the Czech Republic, Prague.
Journal of Bacteriology
|March 1, 1996
Abstract:
The gene pkwA coding for a typical WD-repeat protein was found in the chromosome of the bacterium Thermomonospora curvata CCM 3352. Until now WD-repeat proteins were through to be confined to eukaryotes.
Insights
A novel gene, pkwA, encoding a WD-repeat protein was discovered in the bacterium Thermomonospora curvata. This finding challenges the long-held belief that WD-repeat proteins are exclusive to eukaryotic organisms.
Area of Science:
- Microbiology
- Molecular Biology
- Genetics
Background:
- WD-repeat proteins are crucial in various cellular functions.
- Previously, these proteins were exclusively identified in eukaryotic organisms.
Purpose of the Study:
- To investigate the presence of WD-repeat proteins in prokaryotic organisms.
- To characterize the pkwA gene and its encoded protein in Thermomonospora curvata.
Main Methods:
- Genomic analysis of Thermomonospora curvata CCM 3352.
- Gene identification and sequencing of pkwA.
- Bioinformatic analysis of the encoded protein structure and function.
Main Results:
- The pkwA gene, coding for a typical WD-repeat protein, was identified in the bacterium Thermomonospora curvata.
- This discovery marks the first instance of a WD-repeat protein gene found in a prokaryotic chromosome.
Conclusions:
- The presence of pkwA in Thermomonospora curvata expands the known phylogenetic distribution of WD-repeat proteins.
- This finding necessitates a re-evaluation of the evolutionary origins and functional roles of WD-repeat proteins across different domains of life.