A Cold-Inducible DEAD-Box RNA Helicase from Arabidopsis thaliana Regulates Plant Growth and Development under Low Temperature. [PDF]
DEAD-box RNA helicases comprise a large family and are involved in a range of RNA processing events. Here, we identified one of the Arabidopsis thaliana DEAD-box RNA helicases, AtRH7, as an interactor of Arabidopsis COLD SHOCK DOMAIN PROTEIN 3 (AtCSP3 ...
Yuelin Liu, Daisuke Tabata, Ryozo Imai
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Drought can seriously hinder the growth of plants, resulting in reduced crop yield and quality. At present, the tolerance of DEAD-box helicases (DHC) to abiotic stresses, such as drought, high salinity, low temperature, and high temperature, has been ...
Gangqiang Cao +10 more
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An ATP-Driven N Protein-DDX21 Molecular Switch Dynamically Controls SARS-CoV-2 RNA G-Quadruplex Heterogeneity. [PDF]
An ATP‐driven molecular switch, comprising viral nucleocapsid (N) protein and host helicase DDX21, dynamically modulates SARS‐CoV‐2 RNA G‐quadruplex (G4) heterogeneity. These viral G4s feature non‐canonical ion‐dependence and act as energy‐sensitive structural checkpoints.
Zheng YT +8 more
europepmc +2 more sources
The DEAD-box Protein Rok1 Orchestrates 40S and 60S Ribosome Assembly by Promoting the Release of Rrp5 from Pre-40S Ribosomes to Allow for 60S Maturation. [PDF]
DEAD-box proteins are ubiquitous regulators of RNA biology. While commonly dubbed "helicases," their activities also include duplex annealing, adenosine triphosphate (ATP)-dependent RNA binding, and RNA-protein complex remodeling. Rok1, an essential DEAD-
Sohail Khoshnevis +6 more
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Unwinding the Mechanisms of a DEAD-Box RNA Helicase in Cancer [PDF]
RNA helicases function in all organisms to manage the conformational states of RNAs of all stripes. The largest family of RNA helicases is the DEAD-box family, with 37 members in humans [1]. DEAD-box proteins interact with and manipulate RNAs that range from rRNAs, as they fold and assemble into ribosomes, to mRNAs as they are exported from the nucleus,
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DEAD-Box RNA Helicases in Gram-Positive RNA Decay
DEAD-box RNA helicases are important players in eukaryotic and bacterial RNA metabolism. A helicase from Staphylococcus aureus was recently shown to affect RNA decay, most likely via its interaction with the proposed Gram-positive degradosome. Some, but not all, RNAs are stabilized when the helicase CshA is mutated, and among the affected RNAs is the ...
Redder Peter, Linder Patrick
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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
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Genome-wide comparative in silico analysis of the RNA helicase gene family in Zea mays and Glycine max: a comparison with Arabidopsis and Oryza sativa. [PDF]
RNA helicases are enzymes that are thought to unwind double-stranded RNA molecules in an energy-dependent fashion through the hydrolysis of NTP. RNA helicases are associated with all processes involving RNA molecules, including nuclear transcription ...
Ruirui Xu +3 more
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From unwinding to clamping — the DEAD box RNA helicase family
RNA helicases of the DEAD box family are present in all eukaryotic cells and in many bacteria and Archaea. These highly conserved enzymes are required for RNA metabolism from transcription to degradation and are therefore important players in gene expression.
Linder Patrick, Jankowsky Eckhard
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A Motor Function for the DEAD-Box RNA Helicase, Gemin3, in Drosophila
The survival motor neuron (SMN) protein, the determining factor for spinal muscular atrophy (SMA), is complexed with a group of proteins in human cells. Gemin3 is the only RNA helicase in the SMN complex. Here, we report the identification of Drosophila melanogaster Gemin3 and investigate its function in vivo.
Cauchi, Ruben J. +2 more
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