Results 31 to 40 of about 563,532 (298)

SARS-CoV-2: from its discovery to genome structure, transcription, and replication

open access: yesCell & Bioscience, 2021
SARS-CoV-2 is an extremely contagious respiratory virus causing adult atypical pneumonia COVID-19 with severe acute respiratory syndrome (SARS). SARS-CoV-2 has a single-stranded, positive-sense RNA (+RNA) genome of ~ 29.9 kb and exhibits significant ...
Ayslan Castro Brant   +4 more
doaj   +1 more source

Molecular Docking for the Development of Alternative Therapies against Leishmaniasis

open access: yesChemistry Proceedings, 2023
Topoisomerases play a pivotal role in regulating the topological structure of DNA during fundamental processes such as transcription, DNA repair, or DNA replication; because of this, topoisomerases are biological targets in pathogenic microorganisms or ...
Juan Diego Guarimata   +3 more
doaj   +1 more source

Attenuation of reverse transcriptase facilitates SAMHD1 restriction of HIV-1 in cycling cells

open access: yesRetrovirology, 2023
Background SAMHD1 is a deoxynucleotide triphosphohydrolase that restricts replication of HIV-1 in differentiated leucocytes. HIV-1 is not restricted in cycling cells and it has been proposed that this is due to phosphorylation of SAMHD1 at T592 in these ...
Ming-Han C. Tsai   +8 more
doaj   +1 more source

Targeting of the Fun30 nucleosome remodeller by the Dpb11 scaffold facilitates cell cycle-regulated DNA end resection

open access: yeseLife, 2017
DNA double strand breaks (DSBs) can be repaired by either recombination-based or direct ligation-based mechanisms. Pathway choice is made at the level of DNA end resection, a nucleolytic processing step, which primes DSBs for repair by recombination ...
Susanne CS Bantele   +4 more
doaj   +1 more source

Whole-Exome Sequencing Identifies a Novel POLG Frameshift Variant in an Adult Patient Presenting with Progressive External Ophthalmoplegia and Mitochondrial DNA Depletion

open access: yesCase Reports in Genetics, 2021
Mitochondrial DNA (mtDNA) depletion syndromes are a group of autosomal recessive disorders associated with a spectrum of clinical diseases, which include progressive external ophthalmoplegia (PEO).
Justin Kurtz   +4 more
doaj   +1 more source

Conservative DNA Replication [PDF]

open access: yesNature Reviews Molecular Cell Biology, 2014
Thanos D. Halazonetis describes the discovery that break-induced replication is conservative in budding yeast.
openaire   +3 more sources

Synthesis and Evaluation of Biological Activities of Bis(spiropyrazolone)cyclopropanes: A Potential Application against Leishmaniasis

open access: yesMolecules, 2021
This work focuses on the search and development of drugs that may become new alternatives to the commercial drugs currently available for treatment of leishmaniasis. We have designed and synthesized 12 derivatives of bis(spiropyrazolone)cyclopropanes. We
Olalla Barreiro-Costa   +11 more
doaj   +1 more source

DNA Replication in the Archaea [PDF]

open access: yesMicrobiology and Molecular Biology Reviews, 2006
SUMMARY The archaeal DNA replication machinery bears striking similarity to that of eukaryotes and is clearly distinct from the bacterial apparatus. In recent years, considerable advances have been made in understanding the biochemistry of the archaeal replication proteins.
Elizabeth R. Barry, Stephen D. Bell
openaire   +3 more sources

MCM2-7 ring closure involves the Mcm5 C-terminus and triggers Mcm4 ATP hydrolysis

open access: yesNature Communications
The eukaryotic helicase MCM2-7, is loaded by ORC, Cdc6 and Cdt1 as a double-hexamer onto replication origins. The insertion of DNA into the helicase leads to partial MCM2-7 ring closure, while ATP hydrolysis is essential for consecutive steps in pre ...
Sarah V. Faull   +11 more
doaj   +1 more source

Replicating repetitive DNA

open access: yesNature Cell Biology, 2016
The function and regulation of repetitive DNA, the 'dark matter' of the genome, is still only rudimentarily understood. Now a study investigating DNA replication of repetitive centromeric chromosome segments has started to expose a fascinating replication program that involves suppression of ATR signalling, in particular during replication stress.
Christian Speck   +2 more
openaire   +5 more sources

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