Results 11 to 20 of about 34,862 (253)

Ancestral protein reconstruction reveals evolutionary events governing variation in Dicer helicase function

open access: yeseLife, 2023
Antiviral defense in ecdysozoan invertebrates requires Dicer with a helicase domain capable of ATP hydrolysis. But despite well-conserved ATPase motifs, human Dicer is incapable of ATP hydrolysis, consistent with a muted role in antiviral defense.
Adedeji M Aderounmu   +3 more
doaj   +1 more source

Characterization of the biochemical properties of recombinant ribonuclease III [PDF]

open access: yesNucleic Acids Research, 1990
An Escherichia coli double strand specific endoribonuclease, RNase III, was cloned, expressed in large amounts, and purified to homogeneity. Enzyme activity was monitored by assaying fractions for the ability to correctly process exogenous RNA containing specific RNase III cleavage sites.
P E, March, M A, Gonzalez
openaire   +2 more sources

Preliminary studies on ribonucleases from Poa pratensis seeds

open access: yesActa Societatis Botanicorum Poloniae, 2015
Ribonuclease was extracted from Poa pratensis seeds with 0.1 M acetate buffer, pH 5.1, and then precipitated with alcohol. The enzyme was separated into 5 fractions (I-V) after chromatography on DEAE-cellulose at pH 5.1.
Irena Lorenc-Kubis   +1 more
doaj   +1 more source

SCOPE enables type III CRISPR-Cas diagnostics using flexible targeting and stringent CARF ribonuclease activation

open access: yesNature Communications, 2021
Type III CRISPR-Cas systems recognize and cleave target RNAs and produce signalling molecules. Here the authors discover that both processes are governed by a flexible seed region, ultimately resulting in SCOPE, a SARSCoV-2 diagnostic assay with atto ...
Jurre A. Steens   +12 more
doaj   +1 more source

DROSHA-Dependent AIM2 Inflammasome Activation Contributes to Lung Inflammation during Idiopathic Pulmonary Fibrosis

open access: yesCells, 2019
Idiopathic pulmonary fibrosis (IPF) has been linked to chronic lung inflammation. Drosha ribonuclease III (DROSHA), a class 2 ribonuclease III enzyme, plays a key role in microRNA (miRNA) biogenesis.
Soo Jung Cho   +6 more
doaj   +1 more source

Function of Dicer with regard to Energy Homeostasis Regulation, Structural Modification, and Cellular Distribution

open access: yesInternational Journal of Endocrinology, 2020
As a type III ribonuclease (RNase III) specifically cleaving double-stranded RNA substrates into short fragments, Dicer is indispensable in a range of physi/pathologic processes, e.g., nutrient deprivation, hypoxia, or DNA damage.
Xiaohui Tong   +3 more
doaj   +1 more source

Mouse ribonuclease III. cDNA structure, expression analysis, and chromosomal location

open access: yesBMC Genomics, 2002
Background Members of the ribonuclease III superfamily of double-stranded(ds)-RNA-specific endoribonucleases participate in diverse RNA maturation and decay pathways in eukaryotic and prokaryotic cells. A human RNase III orthologue has been implicated in
Nicholson Rhonda H   +2 more
doaj   +1 more source

Ribonuclease III Processing of Coaxially Stacked RNA Helices [PDF]

open access: yesJournal of Biological Chemistry, 1999
The RNase III family of endoribonucleases participates in maturation and decay of cellular and viral transcripts by processing of double-stranded RNA. RNase III degradation is inherent to most antisense RNA-regulated gene systems in Escherichia coli. In the hok/sok system from plasmid R1, Sok antisense RNA targets the hok mRNA for RNase III-mediated ...
Franch, T., Thisted, T., Gerdes, K.
openaire   +4 more sources

Dicer Is Required for Normal Cerebellar Development and to Restrain Medulloblastoma Formation. [PDF]

open access: yesPLoS ONE, 2015
Dicer, a ribonuclease III enzyme, is required for the maturation of microRNAs. To assess its role in cerebellar and medulloblastoma development, we genetically deleted Dicer in Nestin-positive neural progenitors and in mice lacking one copy for the Sonic
Frederique Zindy   +7 more
doaj   +1 more source

Sinorhizobium meliloti RNase III: Catalytic Features and Impact on Symbiosis

open access: yesFrontiers in Genetics, 2018
Members of the ribonuclease (RNase) III family of enzymes are metal-dependent double-strand specific endoribonucleases. They are ubiquitously found and eukaryotic RNase III-like enzymes include Dicer and Drosha, involved in RNA processing and RNA ...
Margarida Saramago   +4 more
doaj   +1 more source

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