Results 51 to 60 of about 44,034 (296)

Biochemical prevention and treatment of viral infections – A new paradigm in medicine for infectious diseases [PDF]

open access: yes, 2004
For two centuries, vaccination has been the dominating approach to develop prophylaxis against viral infections through immunological prevention. However, vaccines are not always possible to make, are ineffective for many viral infections, and also carry
Fang, Fang, Le Calvez, Hervé, Yu, Mang
core   +3 more sources

Ribozyme activity modulates the physical properties of RNA–peptide coacervates

open access: yeseLife, 2023
Condensed coacervate phases are now understood to be important features of modern cell biology, as well as valuable protocellular models in origin-of-life studies and synthetic biology.
Kristian Kyle Le Vay   +4 more
doaj   +1 more source

Functional identification of catalytic metal ion binding sites within RNA. [PDF]

open access: yesPLoS 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

The structure of a nucleolytic ribozyme that employs a catalytic metal ion

open access: yesNature Chemical Biology, 2017
The TS ribozyme (originally called twister-sister) is a nucleolytic catalytic RNA. We present a crystal structure of the ribozyme in a pre-reactive conformation. Two co-axial helical stacks are organized by a three-way junction and two tertiary contacts.
Yanjun Liu, T. J. Wilson, D. Lilley
semanticscholar   +1 more source

Identification of selective hepatitis delta virus ribozyme inhibitors by high-throughput screening of small molecule libraries

open access: yesJHEP Reports, 2023
Background & Aims: Chronic hepatitis delta is the most severe form of chronic viral hepatitis and is associated with faster progression towards cirrhosis, liver decompensation, and hepatocellular carcinoma.
Eirini D. Tseligka   +5 more
doaj   +1 more source

Horizontal transfer between loose compartments stabilizes replication of fragmented ribozymes

open access: yes, 2019
The emergence of replicases that can replicate themselves is a central issue in the origin of life. Recent experiments suggest that such replicases can be realized if an RNA polymerase ribozyme is divided into fragments short enough to be replicable by ...
Kamimura, Atsushi   +3 more
core   +2 more sources

Expanding Chemical Space of Nucleic Acid Nanoparticles for Tunable Antiviral‐Like Immunomodulatory Responses and Potent Adjuvant Activity

open access: yesAdvanced Functional Materials, EarlyView.
We introduce a nucleic acid nanoparticle (NANP) platform designed to be rrecognized by the human innate immune system in a regulated manner. By changing chemical composition while maintaining constant architectural parameters, we identify key determinants of immunorecognition enabling the rational design of NANPs with tunable immune activation profiles
Martin Panigaj   +21 more
wiley   +1 more source

Molecular Anatomy of the Class I Ligase Ribozyme for Elucidation of the Activity-Generating Unit

open access: yesBiology, 2023
The class I ligase ribozyme consists of 121 nucleotides and shows a high catalytic rate comparable to that found in natural proteinaceous polymerases. In this study, we aimed to identify the smaller active unit of the class I ligase ribozyme comprising ...
Miho Kasuga   +3 more
doaj   +1 more source

SUPER: Upcycling Genetic Parts for Precise Gene Expression Control, Leakage Minimization, and Genetic Circuit Stability

open access: yesAdvanced Science, EarlyView.
To precisely modulate natural and synthetic regulatory parts, SUPER is introduced as a sophisticated and tunable controller of genetic devices without requiring sequence modification on the target. SUPER enhances dynamic range of RNA‐, chemical‐, temperature‐, and protein‐responsive biosensors up to 1011%, and converts biosensors to cover an expanded ...
Taeyang Heo   +3 more
wiley   +1 more source

In vitro Evolution and Engineering for Improved Ribozyme Polymerase Production [PDF]

open access: yes, 2011
According to the "RNA World Hypothesis" the first self replicating molecule formed from the prebiotic chemicals is the ribozyme. A model compartmentalized self replicating system for ribozyme polymerases is designed and used to improve activity,
Ayaz Ali Khan   +2 more
core   +1 more source

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