Results 81 to 90 of about 18,960 (170)

A hammerhead ribozyme cleaves its target RNA during RNA preparation

open access: yes
A chemically modified hammerhead ribozyme was designed to cleave the tax RNA of human T cell leukemia virus type I. This ribozyme was exogenously delivered to tax-transformed fibroblasts by DOTAP-mediated transfection.
Xu X, Nerenberg M, Heidenreich O
core   +2 more sources

The structure and catalytic mechanism of a pseudoknot-containing hammerhead ribozyme

open access: yesNature Communications
We have determined the crystal structure of a pseudoknot (PK)-containing hammerhead ribozyme that closely resembles the pistol ribozyme, with essentially identical secondary structure and connectivity. The activity is more sensitive to deletion of the G8
Xuelin Zhan   +6 more
doaj   +1 more source

Molecular studies on plant glycerol-s-phosphate acyltransferases [PDF]

open access: yes, 2000
The main objective of this research is to advance our understanding of the biochemical properties and the structure-function relationships of the chloroplast glycerol-3-phosphate acyltransferases in plants.
Kroon, Johannes Theodorus Maria
core  

Selective Inactivation of Functional RNAs by Ribozyme-Catalyzed Covalent Modification

open access: yes, 2016
The diverse functions of RNA provide numerous opportunities for programming biological circuits. We describe a new strategy that uses ribozyme K28min to covalently tag a specific nucleobase within an RNA or DNA target strand to regulate and selectively ...
Melissa P. Lokugamage (3372143)   +5 more
core   +1 more source

An Alternative Ribozyme for the RNA Hypercycle [PDF]

open access: yes, 2013
In the quest to forward understanding of the prebiotic world (specifically, the RNA World Hypothesis), one of the most interesting paradigms to consider is the potential for cooperative networks that may have driven molecular evolution forward.
Elkhal, Ishak
core   +1 more source

Comparative analysis of Helicase 3’ UTR with Hepatitis Delta Virus (HDV) ribozyme (PDB Id: 4PR6).

open access: yes, 2016
(a) Tertiary structure of HDV Ribozyme (4PR6). (b) Sequence alignment of Helicase 3’ UTR and HDV ribozyme. (c) Structural superimposition of HDV ribozyme (4PR6) and Helicase ribozyme where HDV ribozyme is represented in red and Helicase 3’ UTR in blue ...
Pruthvi Raj Bejugam (282134)   +1 more
core   +1 more source

Ribozymes based self-cleavage sgRNA and its application in gene editing

open access: yes四川大学学报. 自然科学版, 2019
Currently, sgRNAs are usually transcribed by type Ⅲ promoters in CRISPR/Cas9 system, which makes it difficult to achieve tissuespecific and timespecific expression. Cytotoxicity is an additional concern for constitutive transcription of small RNAs.
Shan Ce, Li Zhong-Han
doaj  

Folding and activity of the hammerhead ribozyme.

open access: yes, 2002
The hammerhead is the smallest of the nucleolytic ribozymes, that undergo backbone cleavage by a transesterification reaction in the presence of magnesium ions.
Lilley, David M. J., Hammann, Christian
core  

Kinetic Mechanism of the Hairpin Ribozyme [PDF]

open access: yes, 1997
To investigate the relationship between RNA folding and ribozyme catalysis, we have carried out a detailed kinetic analysis of four structural derivatives of the hairpin ribozyme. Optimal and suboptimal (wild-type) substrate sequences were studied in
Banerjee, Aloke Raj   +2 more
core   +2 more sources

Ribozyme-catalysed RNA synthesis using triplet building blocks

open access: yeseLife, 2018
RNA-catalyzed RNA replication is widely believed to have supported a primordial biology. However, RNA catalysis is dependent upon RNA folding, and this yields structures that can block replication of such RNAs.
James Attwater   +4 more
doaj   +1 more source

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