Results 41 to 50 of about 18,960 (170)
Applied Sciences, 2021 Ribozymes are catalytic RNAs that are attractive platforms for the construction of nanoscale objects with biological functions. We designed a dimeric form of the Tetrahymena group I ribozyme as a unit structure in which two ribozymes were connected in a ...
Junya Akagi +8 more
doaj +1 more source
Structure and use of ribozyme to generate gRNA.
, 2016 (A) Sequence of HH ribozyme. Map of HH-gRNA. First 6 bases (grey text) of the ribozyme are complementary to the first six bases of the gRNA (red text) and cleavage occurs at the 5’ end of the gRNA (arrow). (B) Denaturing PAGE gel of IVT RNA.
Ashley Shu Mei Ng (493205) +2 more
core +1 more source
Angewandte Chemie, Volume 138, Issue 42, 12 October 2026.Dehydroamino acids (DHAA) are atypical electrophilic sites that lead to crosslinked proteins in Alzheimer's disease (AD) brains. No catalyst for their formation has been known in humans. We report that metal oxides catalyze β‐elimination of phosphoserine and phosphothreonine in model peptides at pH 7.5°C and 37°C, yielding DHAAs.
Samuel W. Markovich +3 more
wiley +2 more sources
Witnessing the structural evolution of an RNA enzyme
eLife, 2021 An RNA polymerase ribozyme that has been the subject of extensive directed evolution efforts has attained the ability to synthesize complex functional RNAs, including a full-length copy of its own evolutionary ancestor.
Xavier Portillo +4 more
doaj +1 more source
Engineering Biology Beyond Single Genes: Advances and Challenges in Multiplex Genome Editing
Animal Research and One Health, EarlyView.Multiplex genome editing is transforming genome engineering from single‐gene perturbation to network‐level control, yet its broader application remains limited by challenges in gRNA array engineering, delivery technologies, and safety management. Emerging AI‐driven approaches are accelerating guide RNA design and CRISPR effector optimization for ...
Linli Wang, Yongbin Liu, Hongbing Han
wiley +1 more source
Autonomous Control of Gene Expression Using Endogenous Transcription Signals
Biotechnology and Bioengineering, EarlyView.ABSTRACT Autonomous cell‐based control of heterologous gene expression can simplify batch‐culture bioprocessing by eliminating external monitoring and extrinsic control of culture conditions. Existing approaches use auto‐induction media, synthetic cell‐cell communication systems, or application‐specific biosensors.
Pakpoom Subsoontorn +2 more
wiley +1 more source
Multivalent RNA‐Cleaving Agents on a Cubic Octameric Silsesquioxane Core
Chemistry – A European Journal, EarlyView.RNA‐cleaving agents on a cubic octameric silsesquioxane core were synthesized and characterized. Several catalytic systems of these structures were screened using hexaribonucleotide models. The best systems were then further used to study their catalytic efficiency in cleaving a HER2 mRNA model sequence. The induced cleavage sites were also determined.
Hanni Haapsaari, Iris Tuomi, Pasi Virta
wiley +1 more source
Functional identification of catalytic metal ion binding sites within RNA. [PDF]
PLoS Biology, 2005 The viability of living systems depends inextricably on enzymes that catalyze phosphoryl transfer reactions. For many enzymes in this class, including several ribozymes, divalent metal ions serve as obligate cofactors.
James L Hougland +3 more
doaj +2 more sources
Design and Preparation of a Multimeric Self-Cleaving Hammerhead Ribozyme
BioTechniques, 1997 The activity of a ribozyme can be impaired by additional sequences at the 5′ and 3′ termini of the catalytic sequence. To approach this problem, a system was designed that minimizes sequences upstream and downstream from active regions of a hammerhead ...
Juan Ruiz +3 more
doaj +1 more source
Plant Methods, 2022 Background Traditional CRISPR/Cas9 systems that rely on U6 or U3 snRNA promoters (RNA polymerase III-dependent promoters) can only achieve constitutive gene editing in plants, hampering the functional analysis of specifically expressed genes.
Jia-Wen Li +9 more
doaj +1 more source