Results 101 to 110 of about 1,562,024 (293)

Expression of catalytic mutants of the mtDNA helicase Twinkle and polymerase POLG causes distinct replication stalling phenotypes. [PDF]

open access: yes, 2007
The mechanism of mitochondrial DNA replication is a subject of intense debate. One model proposes a strand-asynchronous replication in which both strands of the circular genome are replicated semi-independently while the other model proposes both a ...
Wanrooij, S   +4 more
core  

The Role of miRNAs in Chicken Immune Regulation and Prospects for Disease‐Resistant Breeding

open access: yesAnimal Research and One Health, EarlyView.
A schematic workflow illustrating the screening of disease‐resistant miRNAs and the generation of miRNA‐based disease‐resistant chickens via PGC‐mediated germline genome editing. ABSTRACT MicroRNAs (miRNAs) are emerging as pivotal regulators of the immune system, playing a decisive role in shaping disease resistance in chicken.
Qiangzhou Wang   +10 more
wiley   +1 more source

DciA is an ancestral replicative helicase operator essential for bacterial replication initiation

open access: yesNature Communications, 2016
DNA replication requires the loading of the replicative helicase onto the DNA molecule; in bacteria this was believed to be solely accomplished by DnaC and DnaI.
Pierre Brézellec   +4 more
doaj   +1 more source

A conserved MCM single-stranded DNA binding element is essential for replication initiation

open access: yeseLife, 2014
The ring-shaped MCM helicase is essential to all phases of DNA replication. The complex loads at replication origins as an inactive double-hexamer encircling duplex DNA.
Clifford A Froelich   +4 more
doaj   +1 more source

Recent Advances in Virus–Host Interactions, Antiviral Bioactive Compounds, and Breeding for Disease Resistance of Porcine Epidemic Diarrhea Virus

open access: yesAnimal Research and One Health, EarlyView.
Basic research on the PEDV infection cycle and virus–host interactions advances the development of anti‐PEDV drugs and disease‐resistant breeding and helps strengthen disease prevention and control while reducing economic losses in the swine industry.
Heyong Wu   +8 more
wiley   +1 more source

Unwinding and Rewinding: Double Faces of Helicase?

open access: yesJournal of Nucleic Acids, 2012
Helicases are enzymes that use ATP-driven motor force to unwind double-stranded DNA or RNA. Recently, increasing evidence demonstrates that some helicases also possess rewinding activity—in other words, they can anneal two complementary single-stranded ...
Yuliang Wu
doaj   +1 more source

Transcriptomic Profiling in Skeletal Muscle Identifies Associations With Knee Osteoarthritis: The Study of Muscle, Mobility and Aging

open access: yesArthritis &Rheumatology, EarlyView.
Objective The association between skeletal muscle gene expression and knee osteoarthritis (OA) was examined among older adult participants of the Study of Muscle, Mobility and Aging (SOMMA). Methods Inclusion criteria included knee radiographs and bulk RNA sequencing in vastus lateralis muscle, resulting in 523 participants (56% female).
Daniel S. Evans   +7 more
wiley   +1 more source

Structural and functional investigation of DinG containing a 3′–5′ exonuclease domain

open access: yesmBio
Damage-inducible gene G (DinG), a bacterial homolog of SF2 helicase, has been extensively studied in Escherichia coli. However, the structural and functional characteristics of DinG homologs fused with an N-terminal 3′–5′ exonuclease domain, such as ...
Tianwen Gao   +6 more
doaj   +1 more source

DNA helicases involved in DNA repair and their roles in cancer [PDF]

open access: yesNature Reviews Cancer, 2013
Helicases have major roles in genome maintenance by unwinding structured nucleic acids. Their prominence is marked by various cancers and genetic disorders that are linked to helicase defects. Although considerable effort has been made to understand the functions of DNA helicases that are important for genomic stability and cellular homeostasis, the ...
openaire   +2 more sources

ruvA Mutants that resolve Holliday junctions but do not reverse replication forks [PDF]

open access: yes, 2008
RuvAB and RuvABC complexes catalyze branch migration and resolution of Holliday junctions (HJs) respectively. In addition to their action in the last steps of homologous recombination, they process HJs made by replication fork reversal, a reaction which ...
Bradley Alison Sylvia   +14 more
core   +2 more sources

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