Clues to transcription/replication collision‐induced DNA damage: it was RNAP, in the chromosome, with the fork

MB Cooke, C Herman, P Sivaramakrishnan - FEBS letters, 2024 - Wiley Online Library
DNA replication and RNA transcription processes compete for the same DNA template and,
thus, frequently collide. These transcription–replication collisions are thought to lead to …

Processing of stalled replication forks in Bacillus subtilis

B Carrasco, R Torres… - FEMS microbiology …, 2024 - academic.oup.com
Accurate DNA replication and transcription elongation are crucial for preventing the
accumulation of unreplicated DNA and genomic instability. Cells have evolved multiple …

The protein carboxymethyltransferase–dependent aspartate salvage pathway plays a crucial role in the intricate metabolic network of Escherichia coli

M Micaletto, S Fleurier, S Dion, E Denamur, I Matic - Science Advances, 2024 - science.org
Protein carboxymethyltransferase (Pcm) is a highly evolutionarily conserved enzyme that
initiates the conversion of abnormal isoaspartate to aspartate residues. While it is commonly …

RNA polymerase redistribution supports growth in E. coli strains with a minimal number of rRNA operons

J Fan, H El Sayyed, OJ Pambos, M Stracy… - Nucleic Acids …, 2023 - academic.oup.com
Bacterial transcription by RNA polymerase (RNAP) is spatially organized. RNAPs
transcribing highly expressed genes locate in the nucleoid periphery, and form clusters in …

Recycling of bacterial RNA polymerase by the Swi2/Snf2 ATPase RapA

K Inlow, D Tenenbaum, LJ Friedman… - Proceedings of the …, 2023 - National Acad Sciences
Free-living bacteria have regulatory systems that can quickly reprogram gene transcription
in response to changes in the cellular environment. The RapA ATPase, a prokaryotic …

(p) ppGpp modifies RNAP function to confer β-lactam resistance in a peptidoglycan-independent manner

H Voedts, C Anoyatis-Pelé, O Langella, F Rusconi… - Nature …, 2024 - nature.com
Abstract (p) ppGpp is a nucleotide alarmone that controls bacterial response to nutrient
deprivation. Since elevated (p) ppGpp levels confer mecillinam resistance and are essential …

Genome-wide mapping of spontaneous DNA replication error-hotspots using mismatch repair proteins in rapidly proliferating Escherichia coli

FC Hasenauer, HC Barreto, C Lotton… - Nucleic Acids …, 2024 - academic.oup.com
Fidelity of DNA replication is crucial for the accurate transmission of genetic information
across generations, yet errors still occur despite multiple control mechanisms. This study …

ResR/McdR-regulated protein translation machinery contributes to drug resilience in Mycobacterium tuberculosis

P Pal, MY Khan, S Sharma, Y Kumar, N Mangla… - Communications …, 2023 - nature.com
Survival response of the human tuberculosis pathogen, Mycobacterium tuberculosis (Mtb) to
a diverse environmental cues is governed through its versatile transcription regulatory …

Ribosomal intergenic spacers are filled with transposon remnants

AJ Bendich, SO Rogers - Genome Biology and Evolution, 2023 - academic.oup.com
Eukaryotic ribosomal DNA (rDNA) comprises tandem units of highly conserved coding
genes separated by rapidly evolving spacer DNA. The spacers of all 12 species examined …

Ribosomal RNA operons define a central functional compartment in the Streptomyces chromosome

JN Lorenzi, A Thibessard, VS Lioy… - Nucleic Acids …, 2022 - academic.oup.com
Streptomyces are prolific producers of specialized metabolites with applications in medicine
and agriculture. These bacteria possess a large linear chromosome genetically …