Results 51 to 60 of about 16,494 (236)

Hammerhead ribozymes going viral [PDF]

open access: yesGenome Biology, 2016
An association between hammerhead ribozymes and non-autonomous, long terminal repeat retrotransposons is uncovered in plants, shedding light on the biological function of genomically encoded ribozymes.
openaire   +2 more sources

Capped antigenomic RNA transcript facilitates rescue of a plant rhabdovirus

open access: yesVirology Journal, 2017
Background Recovery of recombinant negative-stranded RNA viruses from cloned cDNAs is an inefficient process as multiple viral components need to be delivered into cells for reconstitution of infectious entities.
Shasha Qian   +4 more
doaj   +1 more source

Intracellular Selection of Theophylline-Sensitive Hammerhead Aptazyme

open access: yesMolecular Therapy: Nucleic Acids, 2020
Hammerhead ribozyme-based aptazyme (HHAz), inheriting the advantages of small size and high efficiency from the RNA-cleaving ribozyme and the specific recognition ability of aptamers to specific targets, exhibits the huge potential to be a transgene ...
Qinlin Pu   +8 more
doaj   +1 more source

Structure, dynamics, and function of the hammerhead ribozyme in bulk water and at a clay mineral surface from replica exchange molecular dynamics.

open access: yesLangmuir, 2015
Compared with proteins, the relationship between structure, dynamics, and function of RNA enzymes (known as ribozymes) is far less well understood, despite the fact that ribozymes are found in many organisms and are often conceived as "molecular fossils"
J. B. Swadling   +3 more
semanticscholar   +1 more source

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

Modified Hammerhead Ribozymes as Potential Therapeutics [PDF]

open access: yesNucleosides and Nucleotides, 1998
Abstract Hammerhead ribozymes were modified in the 2′-position by flouro-, amino-, deoxy-, O-methyl- and methoxyethoxy-groups to stabilize against degradations. They were tested for their ability to cut specifically oncogenic N-ras RNA in vitro. Exogenous delivery by lipofection as well as viral vector mediated transfection showed comparable results in
Engels, Joachim W.   +4 more
openaire   +2 more sources

Identification of a TRBD zinc finger-interacting protein in Giardia duodenalis and its regulation of telomerase

open access: yesParasites & Vectors, 2019
Background Giardia duodenalis causes giardiasis, with diarrhea as the primary symptom. The trophozoite proliferation of this zoonotic parasite is mainly affected by telomerase, although the mechanism of telomerase regulation has not been thoroughly ...
Jing-Tong Zheng   +10 more
doaj   +1 more source

Catalytic Diversity of Extended Hammerhead Ribozymes [PDF]

open access: yesBiochemistry, 2008
Chimeras of the well-characterized minimal hammerhead 16 and nine extended hammerheads derived from natural viroids and satellite RNAs were constructed with the goal of assessing whether their very different peripheral tertiary interactions modulate their catalytic properties.
Irina V, Shepotinovskaya   +1 more
openaire   +2 more sources

Efficient large-scale preparation and purification of short single-stranded RNA oligonucleotides

open access: yesBioTechniques, 2016
Sequence-specific RNA recognition by RNA-binding proteins plays a crucial role in the post-translational regulation of gene expression. Biophysical and biochemical studies help to unravel the principles of sequence-specific RNA recognition, but the ...
Maria Zlobina   +4 more
doaj   +1 more source

RNA folding and catalysis mediated by iron (II). [PDF]

open access: yesPLoS ONE, 2012
Mg²⁺ shares a distinctive relationship with RNA, playing important and specific roles in the folding and function of essentially all large RNAs. Here we use theory and experiment to evaluate Fe²⁺ in the absence of free oxygen as a replacement for Mg²⁺ in
Shreyas S Athavale   +13 more
doaj   +1 more source

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