Results 91 to 100 of about 44,034 (296)

Efficient inhibition of hepatitis B virus replication by hepatitis delta virus ribozymes delivered by targeting retrovirus

open access: yesVirology Journal, 2010
Background Hepatitis delta virus (HDV) ribozyme is an attractive molecular tool that can specifically recognize and catalyze the self-cleavage of the viral RNA phosphodiester backbone.
Chen Long-Hua   +4 more
doaj   +1 more source

Enhanced RNA knockdown efficiency with engineered fusion guide RNAs that function with both CRISPR-CasRx and hammerhead ribozyme

open access: yesGenome Biology, 2023
Background CRISPR-Cas13 is a newly emerging RNA knockdown technology that is comparable to RNAi. Among all members of Cas13, CasRx degrades RNA in human cells with high precision and effectiveness.
Yonghao Zhan   +4 more
doaj   +1 more source

Distinct 5′ UTR Requirements for Translation of the Bicistronic X/P mRNA Among Avian Orthobornaviruses

open access: yesMicrobiology and Immunology, Volume 70, Issue 2, Page 80-90, February 2026.
ABSTRACT Orthobornaviruses express X and the phosphoprotein (P) from a bicistronic X/P mRNA, and these proteins regulate polymerase activity. In mammalian orthobornaviruses, the 5′ untranslated region (5′ UTR) of the X/P mRNA controls the translational balance between X and P and thereby promotes efficient replication.
Meng‐Chi Wu   +7 more
wiley   +1 more source

RNase footprinting demonstrates antigenomic hepatitis delta virus ribozyme structural rearrangement as a result of self-cleavage reaction

open access: yesBMC Research Notes, 2008
Background Hepatitis delta virus (HDV) is a satellite virus of hepatitis B. During viral replication the 1700-nucleotide-long genomic RNA and its complement, the antigenomic RNA, undergo self-cleavage catalyzed by internal ribozyme motifs that are ...
Dobrynina Nadezhda   +4 more
doaj   +1 more source

Hammerhead ribozyme kinetics [PDF]

open access: yesRNA, 1998
The hammerhead ribozyme is a small RNA motif that self cleaves at a specific phosphodiester bond to produce 2′,3′ cyclic phosphate and 5′ hydroxyl termini (Hutchins et al., 1986; Forster & Symons, 1987a). The secondary structure of the hammerhead consists of three helices of arbitrary sequence and length (designated I, II, and III) that intersect at 15
T K, Stage-Zimmermann, O C, Uhlenbeck
openaire   +2 more sources

A structural analysis of in vitro catalytic activities of hammerhead ribozymes

open access: yesBMC Bioinformatics, 2007
Background Ribozymes are small catalytic RNAs that possess the dual functions of sequence-specific RNA recognition and site-specific cleavage. Trans-cleaving ribozymes can inhibit translation of genes at the messenger RNA (mRNA) level in both eukaryotic ...
Schneider Erasmus   +5 more
doaj   +1 more source

The origins and physical roots of life’s dual – metabolic and genetic – nature [PDF]

open access: yes, 2017
This review paper aims at a better understanding of the origin and physical foundation of life’s dual – metabolic and genetic – nature. First, I give a concise ‘top-down’ survey of the origin of life, i.e., backwards in time from extant DNA/RNA/protein ...
De Tiège, Alexis
core   +2 more sources

Cryo-EM structures of full-length Tetrahymena ribozyme at 3.1 Å resolution

open access: yesNature, 2021
Z. Su   +10 more
semanticscholar   +1 more source

Crystal Structure of the VS ribozyme

open access: yesNature Chemical Biology, 2015
Varkud Satellite (VS) ribozyme mediates rolling circle replication of a plasmid found in the Neurospora mitochondria. We report crystal structures of this ribozyme at 3.1Å resolution, revealing an intertwined dimer formed by an exchange of substrate ...
N. Suslov   +6 more
semanticscholar   +1 more source

Reconfigurable Nucleic Acid Nanoparticles with Therapeutic RNAi Responses to Intracellular Disease Markers

open access: yesAdvanced Functional Materials, Volume 36, Issue 5, 15 January 2026.
Many known diseases arise from dysregulated gene expression, and differentially expressed genes can serve as biomarkers to distinguish diseased cells from healthy tissues. In this study, reconfigurable nucleic acid nanoparticles (recNANPs) are introduced that can detect overexpressed cancer biomarkers and subsequently release RNAi inducers to silence ...
Yelixza I. Avila   +7 more
wiley   +1 more source

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