Results 51 to 60 of about 99,329 (307)

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

RNA helicases and abiotic stress [PDF]

open access: yesNucleic Acids Research, 2006
RNA helicases function as molecular motors that rearrange RNA secondary structure, potentially performing roles in any cellular process involving RNA metabolism. Although RNA helicase association with a range of cellular functions is well documented, their importance in response to abiotic stress is only beginning to emerge.
openaire   +4 more sources

Helicase Assays

open access: yesBio-Protocol, 2014
Helicases are a class of enzymes which are motor proteins using energy derived from ATP hydrolysis to move directionally along a nucliec acid phosphodiester backbone (such as DNA, RNA and DNA-RNA hybrids) and separate two annealed nucleic acid strands ...
Xin Wang   +3 more
doaj   +1 more source

RNA folding and functions of RNA helicases in ribosome biogenesis

open access: yesRNA Biology, 2022
Eukaryotic ribosome biogenesis involves the synthesis of ribosomal RNA (rRNA) and its stepwise folding into the unique structure present in mature ribosomes. rRNA folding starts already co-transcriptionally in the nucleolus and continues when pre-ribosomal particles further maturate in the nucleolus and upon their transit to the nucleoplasm and ...
Valentin Mitterer, Brigitte Pertschy
openaire   +3 more sources

Molecular mechanism of the RNA helicase DHX37 and its activation by UTP14A in ribosome biogenesis [PDF]

open access: yes, 2019
Eukaryotic ribosome biogenesis is a highly orchestrated process involving numerous assembly factors including ATP-dependent RNA helicases. The DEAH helicase DHX37 (Dhr1 in yeast) is activated by the ribosome biogenesis factor UTP14A to facilitate ...
van den Heuvel, Jasmin   +7 more
core   +1 more source

Genome-wide systematic survey and analysis of the RNA helicase gene family and their response to abiotic stress in sweetpotato

open access: yesBMC Plant Biology
Sweetpotato (Ipomoea batatas (L.) Lam.) holds a crucial position as one of the staple foods globally, however, its yields are frequently impacted by environmental stresses.
Fangfang Mu   +6 more
doaj   +1 more source

Blocking tombusvirus replication through the antiviral functions of DDX17-like RH30 DEAD-box helicase.

open access: yesPLoS Pathogens, 2019
Positive-stranded RNA viruses replicate inside cells and depend on many co-opted cellular factors to complete their infection cycles. To combat viruses, the hosts use conserved restriction factors, such as DEAD-box RNA helicases, which can function as ...
Cheng-Yu Wu, Peter D Nagy
doaj   +1 more source

Mutations in Mtr4 Structural Domains Reveal Their Important Role in Regulating tRNAiMet Turnover in Saccharomyces cerevisiae and Mtr4p Enzymatic Activities In Vitro. [PDF]

open access: yesPLoS ONE, 2016
RNA processing and turnover play important roles in the maturation, metabolism and quality control of a large variety of RNAs thereby contributing to gene expression and cellular health.
Yan Li   +2 more
doaj   +1 more source

ATPase mechanism of the 5'-3' DNA helicase, RecD2: evidence for a pre-hydrolysis conformation change [PDF]

open access: yes, 2013
The superfamily 1 helicase, RecD2, is a monomeric, bacterial enzyme with a role in DNA repair, but with 5'-3' activity unlike most enzymes from this superfamily. Rate constants were determined for steps within the ATPase cycle of RecD2 in the presence of
Webb, Martin R, Toseland, Christopher P.
core   +1 more source

Subtype‐specific enhancer RNAs define transcriptional regulators and prognosis in breast cancers

open access: yesMolecular Oncology, EarlyView.
This study employed machine learning methodologies to perform the subtype‐specific classification of RNA‐seq data sets, which are mapped on enhancers from TCGA‐derived breast cancer patients. Their integration with gene expression (referred to as ProxCReAM eRNAs) and chromatin accessibility profiles has the potential to identify lineage‐specific and ...
Aamena Y. Patel   +6 more
wiley   +1 more source

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