Results 41 to 50 of about 9,669 (211)

The bacterial replication origin BUS promotes nucleobase capture

open access: yesNature Communications, 2023
Genome duplication is essential for the proliferation of cellular life and this process is generally initiated by dedicated replication proteins at chromosome origins.
Simone Pelliciari   +14 more
doaj   +1 more source

Genes controlled by DnaA

open access: yes, 2019
DnaA is the widely conserved bacterial AAA+ ATPase that functions as both the replication initiator and a transcription factor. In many organisms, DnaA controls expression of its own gene and likely several others during growth and in response to ...
Grossman, Alan Davis   +2 more
core   +1 more source

Research on DnaA in the early days

open access: yesResearch in Microbiology, 2020
The Escherichia coli chromosome is a circular double helix. DNA polymerase, therefore, cannot use it directly as a template for polymerization until it has first been unwound. The DnaA protein opens the chromosome at a unique and specific site (oriC), which allows the polymerase to begin DNA replication.
openaire   +3 more sources

Blocking, Bending, and Binding: Regulation of Initiation of Chromosome Replication During the Escherichia coli Cell Cycle by Transcriptional Modulators That Interact With Origin DNA

open access: yesFrontiers in Microbiology, 2021
Genome duplication is a critical event in the reproduction cycle of every cell. Because all daughter cells must inherit a complete genome, chromosome replication is tightly regulated, with multiple mechanisms focused on controlling when chromosome ...
Julia E. Grimwade, Alan C. Leonard
doaj   +1 more source

Biochemistry of DnaA.

open access: yes, 2017
A) Coomassie-stained SDS PAGE showing the purification of DnaA by gel filtration chromatography following nickel NTA affinity chromatography; shown are peak elution fractions.
Katrin Schenk (3720469)   +8 more
core   +1 more source

DnaA-dependent riboswitch for transcription attenuation

open access: yes, 2020
Transcription attenuation has been believed to be controlled by alternative configurations of RNA secondary structures through arresting or releasing the ribosome on the leader RNA molecule in response to limitation or sufficiency of specific amino acid.
Morigen, Morigen
core   +1 more source

Occlusion of RNA Polymerase by Oligomerization of DnaA Protein over the dnaA Promoter of Escherichia coli [PDF]

open access: yesJournal of Biological Chemistry, 1997
DnaA protein, the initiator protein for initiation of Escherichia coli chromosomal replication, has been shown to repress its own expression from two dnaA promoters, 1P and 2P. The sequence-specific binding of DnaA protein to the DnaA box, located between the two promoters, results in subsequent oligomerization of DnaA protein.
Y S, Lee, D S, Hwang
openaire   +2 more sources

The Escherichia coli cryptic prophage protein YfdR binds to DnaA and initiation of chromosomal replication is inhibited by overexpression of the gene cluster yfdQ-yfdR-yfdS-yfdT

open access: yesFrontiers in Microbiology, 2016
The initiation of bacterial chromosomal replication is regulated by multiple pathways. To explore novel regulators, we isolated multicopy suppressors for the cold-sensitive hda-185 ΔsfiA(sulA) mutant.
Yaunori eNoguchi, Tsutomu eKatayama
doaj   +1 more source

Mutations in dnaA and a cryptic interaction site increase drug resistance in Mycobacterium tuberculosis.

open access: yesPLoS Pathogens, 2020
Genomic dissection of antibiotic resistance in bacterial pathogens has largely focused on genetic changes conferring growth above a single critical concentration of drug.
Nathan D Hicks   +10 more
doaj   +1 more source

Identification of the replication origins from Cyanothece ATCC 51142 and their interactions with the DnaA protein: from in silico to in vitro studies

open access: yesFrontiers in Microbiology, 2015
Based on the complete genome of Cyanothece ATCC 51142, the oriCs of both the circular and linear chromosomes in Cyanothece ATCC 51142 have been predicted by utilizing a web-based system Ori-Finder.
He eHuang   +5 more
doaj   +1 more source

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