Results 61 to 70 of about 172,673 (183)

Revision and expansion of the genus Spirirestis (Tolypothrichaceae, Cyanobacteria)

open access: yesJournal of Phycology, EarlyView.
Abstract Recent phylogenetic analyses of members of the Tolypothrichaceae (Nostocales, Cyanobacteria) based on 16S rRNA gene sequence data have demonstrated that the soil‐inhabiting members of the family belong to a clade separate from the aquatic and subaerial members of the family.
Jeffrey R. Johansen   +14 more
wiley   +1 more source

Galactose Metabolism Plays a Crucial Role in Biofilm Formation by Bacillus subtilis [PDF]

open access: yes, 2014
Galactose is a common monosaccharide that can be utilized by all living organisms via the activities of three main enzymes that make up the Leloir pathway: GalK, GalT, and GalE.
Beauregard, Pascale   +4 more
core   +1 more source

Staphylococcus aureus COL: An Atypical Model Strain of MRSA That Exhibits Slow Growth and Antibiotic Tolerance due to a Mutation in PRPP Synthetase

open access: yesMolecular Microbiology, EarlyView.
COL is an unusual “model” strain of Staphylococcus aureus that exhibits slow growth and multidrug antibiotic tolerance. This phenotype is primarily due to a mutation in Prs, which synthesizes the core metabolite phosphoribosyl pyrophosphate (PRPP). Introduction of the COL Prs allele into the antibiotic‐susceptible strain Newman confers tolerance, while
Claire E. Stevens   +5 more
wiley   +1 more source

Regulatory activity revealed by dynamic correlations in gene expression noise [PDF]

open access: yes, 2008
Gene regulatory interactions are context dependent, active in some cellular states but not in others. Stochastic fluctuations, or 'noise', in gene expression propagate through active, but not inactive, regulatory links^(1,2).
Cox, Robert Sidney, III   +4 more
core   +2 more sources

DASH: a versatile and high‐capacity gene stacking system for plant synthetic biology

open access: yesPlant Biotechnology Journal, EarlyView.
Summary DNA assembly systems based on the Golden Gate method are popular in synthetic biology but have several limitations: small insert size, incompatibility with other cloning platforms, DNA domestication requirement, generation of fusion scars, and lack of post‐assembly modification.
Chengsong Zhao   +2 more
wiley   +1 more source

Molecular Distributions in Gene Regulatory Dynamics [PDF]

open access: yes, 2010
We show how one may analytically compute the stationary density of the distribution of molecular constituents in populations of cells in the presence of noise arising from either bursting transcription or translation, or noise in degradation rates ...
Acar   +55 more
core   +5 more sources

Analysis of Benzoate 1,2‐Dioxygenase Identifies Shared Electron Transfer Components With DxnA1A2 in Rhizorhabdus wittichii RW1

open access: yesJournal of Basic Microbiology, Volume 65, Issue 8, August 2025.
ABSTRACT Rhizorhabdus wittichii RW1 is known for its ability to degrade polycyclic aromatic hydrocarbons, such as dibenzo‐p‐dioxin (DD) and dibenzofuran (DF). We hypothesized that the R. wittichii RW1 benzoate 1,2‐dioxygenase shares electron transfer components with the DD/DF angular dioxygenase (DxnA1A2), similar to many aromatic hydrocarbon degrading
Igor Ivanovski   +2 more
wiley   +1 more source

Unraveling the molecular basis of subunit specificity in P pilus assembly by mass spectrometry [PDF]

open access: yes, 2008
P pili are multisubunit fibers essential for the attachment of uropathogenic Escherichia coli to the kidney. These fibers are formed by the noncovalent assembly of six different homologous subunit types in an array that is strictly defined in terms of ...
A. E. Ashcroft   +28 more
core   +2 more sources

Identification of EppR, a Second Repressor of Error‐Prone DNA Polymerase Genes in Acinetobacter baumannii

open access: yesMolecular Microbiology, Volume 124, Issue 1, Page 20-39, July 2025.
A novel TetR‐like regulator (EppR) has been identified to repress genes encoding DNA polymerase V in Acinetobacter baumannii through the direct binding of a conserved EppR motif in their promoters. EppR works with previously identified regulator UmuDAb to serve as co‐regulators of these genes. In response to DNA damage and/or environmental stress, both
Brian Nguyen   +6 more
wiley   +1 more source

A Sucrose‐Utilisation Gene Cluster Contributes to Colonisation of Horse Chestnut by Pseudomonas syringae pv. aesculi

open access: yesMolecular Plant Pathology, Volume 26, Issue 7, July 2025.
We show that a sucrose gene cluster enhances the fitness and pathogenicity of Pseudomonas syringae pv. aesculi on horse chestnut, highlighting sucrose metabolism as important for tree colonisation. ABSTRACT Pseudomonas syringae pathovar aesculi (E‐Pae) causes bleeding canker disease in the woody tissue of European horse chestnut (HC).
Sabrine Dhaouadi   +8 more
wiley   +1 more source

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