Results 11 to 20 of about 48,433 (280)

Understanding the Evolution of Mitochondrial Genomes in the Green Macroalgal Genus Ulva (Ulvophyceae, Chlorophyta)

open access: yesFrontiers in Marine Science, 2022
To gain more insights into the evolution of mitochondrial genomes (mitogenomes or mtDNAs) in the green macroalgal genus Ulva (Ulvophyceae, Chlorophyta), we sequenced seven Ulva mitogenomes from six species as well as one Percursaria mitogenome as ...
Feng Liu   +10 more
doaj   +1 more source

Arabidopsis MED18 Interaction With RNA Pol IV and V Subunit NRPD2a in Transcriptional Regulation of Plant Immune Responses

open access: yesFrontiers in Plant Science, 2021
Mediator is a conserved multiprotein complex important for transcription by RNA polymerase II (Pol II). Arabidopsis Mediator subunit MED18 regulates flowering, hormone signaling and plant immunity.
Yan Zhang   +6 more
doaj   +1 more source

AGO6 functions in RNA-mediated transcriptional gene silencing in shoot and root meristems in Arabidopsis thaliana. [PDF]

open access: yesPLoS ONE, 2011
RNA-directed DNA methylation (RdDM) is a small interfering RNA (siRNA)-mediated epigenetic modification that contributes to transposon silencing in plants. RdDM requires a complex transcriptional machinery that includes specialized RNA polymerases, named
Changho Eun   +8 more
doaj   +1 more source

Essential Oils Prime Epigenetic and Metabolomic Changes in Tomato Defense Against Fusarium oxysporum

open access: yesFrontiers in Plant Science, 2022
In this work, we studied the direct and indirect plant protection effects of an Artemisia absinthium essential oil (AEO) on tomato seedlings against Fusarium oxysporum sp. oxysporum radicis lycopersici (Fol). AEO exhibited a toxic effect in vitro against
Serine Soudani   +5 more
doaj   +1 more source

A Bayesian approach to analyse genetic variation within RNA viral populations. [PDF]

open access: yesPLoS Computational Biology, 2011
The development of modern and affordable sequencing technologies has allowed the study of viral populations to an unprecedented depth. This is of particular interest for the study of within-host RNA viral populations, where variation due to error-prone ...
Trevelyan J McKinley   +4 more
doaj   +1 more source

Density- and elongation speed-dependent error correction in RNA polymerization [PDF]

open access: yes, 2021
Backtracking of RNA polymerase (RNAP) is an important pausing mechanism during DNA transcription that is part of the error correction process that enhances transcription fidelity. We model the backtracking mechanism of RNA polymerase, which usually happens when the polymerase tries to incorporate a mismatched nucleotide triphosphate.
arxiv   +1 more source

In Silico Analysis of Honey Bee Peptides as Potential Inhibitors of Capripoxvirus DNA-Directed RNA Polymerase

open access: yesAnimals, 2023
The genus Capripoxvirus belongs to the Poxviridae family. The sheeppox, goatpox, and lumpy skin disease viruses are three species of this genus with 96% identity in their genomes. These are financially devastating viral infections among cattle, which cause a reduction in animal products and lead to a loss in livestock industries.
Ghulam Mustafa   +6 more
openaire   +3 more sources

Investigation of Multi-Subunit Mycobacterium tuberculosis DNA-Directed RNA Polymerase and Its Rifampicin Resistant Mutants

open access: yesInternational Journal of Molecular Sciences, 2023
Emerging Mycobacterium tuberculosis (Mtb) resistant strains have continued to limit the efficacies of existing antitubercular therapies. More specifically, mutations in the RNA replicative machinery of Mtb, RNA polymerase (RNAP), have been widely linked to rifampicin (RIF) resistance, which has led to therapeutic failures in many clinical cases ...
Mokgerwa Zacharia Monama   +2 more
openaire   +2 more sources

Use of Site-Specifically Tethered Chemical Nucleases to Study Macromolecular Reactions

open access: yesBiological Procedures Online, 2003
During a complex macromolecular reaction multiple changes in molecular conformation and interactions with ligands may occur. X-ray crystallography may provide only a limited set of snapshots of these changes.
Mukherjee Srabani, Sousa Rui
doaj   +1 more source

The RNA silencing enzyme RNA polymerase v is required for plant immunity. [PDF]

open access: yesPLoS Genetics, 2011
RNA-directed DNA methylation (RdDM) is an epigenetic control mechanism driven by small interfering RNAs (siRNAs) that influence gene function. In plants, little is known of the involvement of the RdDM pathway in regulating traits related to immune ...
Ana López   +4 more
doaj   +1 more source

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