Results 41 to 50 of about 145,292 (281)

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

FEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source

Spatial Chromosome Organization and Adaptation of Escherichia coli under Heat Stress

Microorganisms
The spatial organization of bacterial chromosomes is crucial for cellular functions. It remains unclear how bacterial chromosomes adapt to high-temperature stress.
Xu-Ting Wang, Bin-Guang Ma
doaj   +1 more source

The B chromosomes of the African cichlid fish Haplochromis obliquidens harbour 18S rRNA gene copies

BMC Genetics, 2010
Background Diverse plant and animal species have B chromosomes, also known as accessory, extra or supernumerary chromosomes. Despite being widely distributed among different taxa, the genomic nature and genetic behavior of B chromosomes are still poorly ...
Martins Cesar, Ferreira Irani A, Poletto Andréia B   +2 more
doaj   +1 more source

Biological Functions of Type II Toxin-Antitoxin Systems in Bacteria

Microorganisms, 2021
After the first discovery in the 1980s in F-plasmids as a plasmid maintenance system, a myriad of toxin-antitoxin (TA) systems has been identified in bacterial chromosomes and mobile genetic elements (MGEs), including plasmids and bacteriophages.
Muhammad Kamruzzaman, Alma Y. Wu, Jonathan R. Iredell   +2 more
doaj   +1 more source

A Quantitative Approach to Investigating the Hypothesis of Prokaryotic Intron Loss [PDF]

, 2011
Using a novel method, we show that ordered triplets of motifs usually associated with spliceosomal intron recognition are underrepresented in the protein coding sequence of complete Thermotogae, archaeal and bacterial genomes.
Robert M. Sinclair
core   +1 more source

Bacterial Chromosome Organization and Segregation [PDF]

Cold Spring Harbor Perspectives in Biology, 2010
Bacterial chromosomes are generally approximately 1000 times longer than the cells in which they reside, and concurrent replication, segregation, and transcription/translation of this crowded mass of DNA poses a challenging organizational problem. Recent advances in cell-imaging technology with subdiffraction resolution have revealed that the bacterial
Esteban, Toro, Lucy, Shapiro
openaire   +2 more sources

Substrate specificity of Burkholderia pseudomallei multidrug transporters is influenced by the hydrophilic patch in the substrate‐binding pocket

FEBS Letters, EarlyView.
Multidrug transporters BpeB and BpeF from the Gram‐negative pathogen Burkholderia pseudomallei have a hydrophilic patch in their substrate‐binding pocket. Drug susceptibility tests and growth curve analyses using an Escherichia coli recombinant expression system revealed that the hydrophilic patches of BpeB and BpeF are involved in the substrate ...
Ui Okada, Satoshi Murakami
wiley   +1 more source

Cytogenetic maps of homoeologous chromosomes A h01 and D h01 and their integration with the genome assembly in Gossypium hirsutum

Comparative Cytogenetics, 2017
Cytogenetic maps of Gossypium hirsutum (Linnaeus, 1753) homoeologous chromosomes Ah01 and Dh01 were constructed by fluorescence in situ hybridization (FISH), using eleven homoeologous-chromosomes-shared bacterial artificial chromosomes (BACs) clones and ...
Yuling Liu, Zhen Liu, Renhai Peng, Yuhong Wang, Zhongli Zhou, Xiaoyan Cai, Xingxing Wang, Zhenmei Zhang, Kunbo Wang, Fang Liu   +9 more
doaj   +3 more sources

Highly efficient 5\u27 capping of mitochondrial RNA with NAD+ and NADH by yeast and human mitochondrial RNA polymerase [PDF]

, 2018
Bacterial and eukaryotic nuclear RNA polymerases (RNAPs) cap RNA with the oxidized and reduced forms of the metabolic effector nicotinamide adenine dinucleotide, NAD+ and NADH, using NAD+ and NADH as non-canonical initiating nucleotides for transcription
Basu, Urmimala, Bird, Jeremy G, Ebright, Richard H., Grudzien-Nogalska, Ewa, Kiledjian, Megerditch, Kuster, David, Nickels, Bryce E., Patel, Smita S., Ramachandran, Aparna, Temiakov, Dmitry, Towheed, Atif, Wallace, Douglas C.   +11 more
core   +1 more source

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

FEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka, Yuxi Liu, Stefano Maggi, Debnath Ghosal, Jue Wang, Prashant P. Damke, Stephen D. Carter, Wei Zhao, Sukhithasri Vijayrajratnam, Joseph P. Vogel, Carrie L. Shaffer, Grant J. Jensen   +11 more
wiley   +1 more source