» Articles » PMID: 30809954

Cyanophage MazG is a Pyrophosphohydrolase but Unable to Hydrolyse Magic Spot Nucleotides

Overview
Date 2019 Feb 28
PMID 30809954
Citations 24
Authors
Affiliations
Soon will be listed here.
Abstract

Bacteriophage possess a variety of auxiliary metabolic genes of bacterial origin. These proteins enable them to maximize infection efficiency, subverting bacterial metabolic processes for the purpose of viral genome replication and synthesis of the next generation of virion progeny. Here, we examined the enzymatic activity of a cyanophage MazG protein - a putative pyrophosphohydrolase previously implicated in regulation of the stringent response via reducing levels of the central alarmone molecule (p)ppGpp. We demonstrate, however, that the purified viral MazG shows no binding or hydrolysis activity against (p)ppGpp. Instead, dGTP and dCTP appear to be the preferred substrates of this protein, consistent with a role preferentially hydrolysing deoxyribonucleotides from the high GC content host Synechococcus genome. This showcases a new example of the fine-tuned nature of viral metabolic processes.

Citing Articles

Profiling the interplay and coevolution of and cyanosiphophage Mic1.

Wang X, Du K, Chen C, Hou P, Li W, Chen Y Microbiol Spectr. 2024; 12(6):e0029824.

PMID: 38695606 PMC: 11237433. DOI: 10.1128/spectrum.00298-24.


Genome sequences of the first phages infecting marine .

Du S, Wu Y, Ying H, Wu Z, Yang M, Chen F Microb Genom. 2024; 10(4).

PMID: 38630615 PMC: 11092137. DOI: 10.1099/mgen.0.001240.


Coordinated transcriptional response to environmental stress by a Synechococcus virus.

Rihtman B, Torcello-Requena A, Mikhaylina A, Puxty R, Clokie M, Millard A ISME J. 2024; 18(1).

PMID: 38431846 PMC: 10976474. DOI: 10.1093/ismejo/wrae032.


Four additional natural 7-deazaguanine derivatives in phages and how to make them.

Cui L, Balamkundu S, Liu C, Ye H, Hourihan J, Rausch A Nucleic Acids Res. 2023; 51(17):9214-9226.

PMID: 37572349 PMC: 10516641. DOI: 10.1093/nar/gkad657.


Metagenomics of Virus Diversities in Solid-State Brewing Process of Traditional Chinese Vinegar.

Yu Z, Ma Y, Guan Y, Zhu Y, Wang K, Wang Y Foods. 2023; 11(20).

PMID: 37431044 PMC: 9602057. DOI: 10.3390/foods11203296.


References
1.
Lin X, Ding H, Zeng Q . Transcriptomic response during phage infection of a marine cyanobacterium under phosphorus-limited conditions. Environ Microbiol. 2015; 18(2):450-60. DOI: 10.1111/1462-2920.13104. View

2.
Roitman S, Hornung E, Flores-Uribe J, Sharon I, Feussner I, Beja O . Cyanophage-encoded lipid desaturases: oceanic distribution, diversity and function. ISME J. 2017; 12(2):343-355. PMC: 5776448. DOI: 10.1038/ismej.2017.159. View

3.
Kamiya H, Kasai H . 2-Hydroxy-dATP is incorporated opposite G by Escherichia coli DNA polymerase III resulting in high mutagenicity. Nucleic Acids Res. 2000; 28(7):1640-6. PMC: 102799. DOI: 10.1093/nar/28.7.1640. View

4.
Zeidner G, Bielawski J, Shmoish M, Scanlan D, Sabehi G, Beja O . Potential photosynthesis gene recombination between Prochlorococcus and Synechococcus via viral intermediates. Environ Microbiol. 2005; 7(10):1505-13. DOI: 10.1111/j.1462-2920.2005.00833.x. View

5.
Corrigan R, Bellows L, Wood A, Grundling A . ppGpp negatively impacts ribosome assembly affecting growth and antimicrobial tolerance in Gram-positive bacteria. Proc Natl Acad Sci U S A. 2016; 113(12):E1710-9. PMC: 4812758. DOI: 10.1073/pnas.1522179113. View