Abstract
ABSTRACTEra is an essential GTPase inEscherichia coli, and Era has been implicated in a number of cellular functions. Homologues of Era have been identified in various bacteria and some eukaryotes. Using theeragene as bait in the yeast two-hybrid system to screenE. coligenomic libraries, we discovered that Era interacts with MazG, a protein of unknown function which is highly conserved among bacteria. The direct interaction between Era and MazG was also confirmed in vitro, being stronger in the presence of GDP than in the presence of GTPγS. MazG was characterized as a nucleoside triphosphate pyrophosphohydrolase which can hydrolyze all eight of the canonical ribo- and deoxynucleoside triphosphates to their respective monophosphates and PPi, with a preference for deoxynucleotides. AmazGdeletion strain ofE. coliwas constructed by replacing themazGgene with a kanamycin resistance gene. UnlikemutT, a gene for another conserved nucleotide triphosphate pyrophosphohydrolase that functions as a mutator gene, themazGdeletion did not result in a mutator phenotype inE. coli.
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Dates
Type | When |
---|---|
Created | 22 years, 6 months ago (Feb. 6, 2003, 9:23 p.m.) |
Deposited | 1 year, 8 months ago (Jan. 6, 2024, 3:16 p.m.) |
Indexed | 3 months, 2 weeks ago (May 17, 2025, 9:33 p.m.) |
Issued | 22 years, 11 months ago (Oct. 1, 2002) |
Published | 22 years, 11 months ago (Oct. 1, 2002) |
Published Print | 22 years, 11 months ago (Oct. 1, 2002) |
@article{Zhang_2002, title={MazG, a Nucleoside Triphosphate Pyrophosphohydrolase, Interacts with Era, an Essential GTPase inEscherichia coli}, volume={184}, ISSN={1098-5530}, url={http://dx.doi.org/10.1128/jb.184.19.5323-5329.2002}, DOI={10.1128/jb.184.19.5323-5329.2002}, number={19}, journal={Journal of Bacteriology}, publisher={American Society for Microbiology}, author={Zhang, Junjie and Inouye, Masayori}, year={2002}, month=oct, pages={5323–5329} }