Results 61 to 70 of about 342,007 (314)

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 ...
Goffart, S   +4 more
core   +1 more source

RNA helicase A interacts with dsDNA and topoisomerase IIalpha [PDF]

open access: yesNucleic Acids Research, 2003
RNA helicase A (RHA) is a multifunctional protein involved in various nuclear processes such as transcription and RNA export. It is believed that the interacting factors play important roles in determining the functional specificity of RHA. Here we show that RHA directly interacts with double-stranded (ds) nucleic acids (NAs) and assembles complexes ...
Kai, Zhou   +5 more
openaire   +2 more sources

Molecular characterization of DDX26, a human DEAD-box RNA helicase, located on chromosome 7p12

open access: yesBrazilian Journal of Medical and Biological Research, 2001
DEAD-box proteins comprise a family of ATP-dependent RNA helicases involved in several aspects of RNA metabolism. Here we report the characterization of the human DEAD-box RNA helicase DDX26. The gene is composed of 14 exons distributed over an extension
A.A. Camargo   +6 more
doaj   +1 more source

Evaluation of an ASFV RNA Helicase Gene A859L for Virus Replication and Swine Virulence

open access: yesViruses, 2021
African swine fever virus (ASFV) is producing a devastating pandemic that, since 2007, has spread to a contiguous geographical area from central Europe to Asia. In July 2021, ASFV was detected in the Dominican Republic, the first report of the disease in
E. Ramírez-Medina   +7 more
semanticscholar   +1 more source

To translate, or not to translate: viral and host mRNA regulation by interferon-stimulated genes. [PDF]

open access: yes, 2015
Type I interferon (IFN) is one of the first lines of cellular defense against viral pathogens. As a result of IFN signaling, a wide array of IFN-stimulated gene (ISG) products is upregulated to target different stages of the viral life cycle.
Li, Melody MH   +2 more
core   +1 more source

Biochemical Characterization of Middle East Respiratory Syndrome Coronavirus Helicase

open access: yesmSphere, 2016
Middle East respiratory syndrome coronavirus (MERS-CoV) helicase is a superfamily 1 helicase containing seven conserved motifs. We have cloned, expressed, and purified a Strep-fused recombinant MERS-CoV nonstructural protein 13 (M-nsp13) helicase ...
Adeyemi O. Adedeji, Hilary Lazarus
doaj   +1 more source

Arginine Methylation of RNA Helicase A Determines Its Subcellular Localization*

open access: yesJournal of Biological Chemistry, 2004
RNA helicase A (RHA) undergoes nuclear translocation via a classical import mechanism utilizing karyopherin beta. The nuclear transport domain (NTD) of RHA is known to be necessary and sufficient for its bi-directional nuclear trafficking. We report here
W. A. Smith   +3 more
semanticscholar   +1 more source

The RNA Helicase Ded1 Regulates Translation and Granule Formation during Multiple Phases of Cellular Stress Responses

open access: yesbioRxiv, 2021
Ded1 is a conserved RNA helicase that promotes translation initiation in steady-state conditions. Ded1 has also been shown to regulate translation during cellular stress and affect the dynamics of stress granules (SGs), accumulations of RNA and protein ...
Peyman P. Aryanpur   +2 more
semanticscholar   +1 more source

Structural basis of TFIIH activation for nucleotide excision repair. [PDF]

open access: yes, 2019
Nucleotide excision repair (NER) is the major DNA repair pathway that removes UV-induced and bulky DNA lesions. There is currently no structure of NER intermediates, which form around the large multisubunit transcription factor IIH (TFIIH).
Chernev, A.   +5 more
core   +2 more sources

m6A in mRNA coding regions promotes translation via the RNA helicase-containing YTHDC2

open access: yesNature Communications, 2019
Dynamic mRNA modification in the form of N6-methyladenosine (m6A) adds considerable richness and sophistication to gene regulation. The m6A mark is asymmetrically distributed along mature mRNAs, with approximately 35% of m6A residues located within the ...
Yuanhui Mao   +6 more
semanticscholar   +1 more source

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