Results 11 to 20 of about 408,201 (235)

Expression of the C-terminal family 22 carbohydratebinding module of xylanase 10B of Clostridium themocellum in tobacco plant [PDF]

open access: yes, 2009
Carbohydrate-binding modules have been shown to alter plant cell wall structural architecture. Hence, they have the potential application of being used to engineer the plant to produce tailor-made natural fibers in the cell wall.
Obembe, Olawole O.
core   +2 more sources

Many Activities, One Structure: Functional Plasticity of Ribozyme Folds

open access: yesMolecules, 2016
Catalytic RNAs, or ribozymes, are involved in a number of essential biological processes, such as replication of RNA genomes and mobile genetic elements, RNA splicing, translation, and RNA degradation.
Matthew W.L. Lau   +1 more
doaj   +1 more source

Kinetic analysis of an efficient DNA-dependent TNA polymerase. [PDF]

open access: yes, 2005
alpha-l-Threofuranosyl nucleoside triphosphates (tNTPs) are tetrafuranose nucleoside derivatives and potential progenitors of present-day beta-d-2'-deoxyribofuranosyl nucleoside triphosphates (dNTPs).
Chaput, John C   +6 more
core   +2 more sources

The Origin of Life: Models and Data. [PDF]

open access: yes, 2017
A general framework for conventional models of the origin of life (OOL) is the specification of a 'privileged function.' A privileged function is an extant biological function that is excised from its biological context, elevated in importance over other
Lanier, Kathryn A, Williams, Loren Dean
core   +1 more source

A Structure-Function Diversity Survey of the RNA-Dependent RNA Polymerases From the Positive-Strand RNA Viruses

open access: yesFrontiers in Microbiology, 2019
The RNA-dependent RNA polymerases (RdRPs) encoded by the RNA viruses are a unique class of nucleic acid polymerases. Each viral RdRP contains a 500–600 residue catalytic module with palm, fingers, and thumb domains forming an encircled human right hand ...
Hengxia Jia, Hengxia Jia, Peng Gong
doaj   +1 more source

Evolution of RNA-protein interactions: non-specific binding led to RNA splicing activity of fungal mitochondrial tyrosyl-tRNA synthetases. [PDF]

open access: yesPLoS Biology, 2014
The Neurospora crassa mitochondrial tyrosyl-tRNA synthetase (mtTyrRS; CYT-18 protein) evolved a new function as a group I intron splicing factor by acquiring the ability to bind group I intron RNAs and stabilize their catalytically active RNA structure ...
Lilian T Lamech   +2 more
doaj   +1 more source

The Exosome Subunit Rrp44 Plays a Direct Role in RNA Substrate Recognition [PDF]

open access: yes, 2007
The exosome plays key roles in RNA maturation and surveillance, but it is unclear how target RNAs are identified. We report the functional characterization of the yeast exosome component Rrp44, a member of the RNase II family.
Anderson, James T.   +2 more
core   +2 more sources

The structure of an RNAi polymerase links RNA silencing and transcription.

open access: yesPLoS Biology, 2006
RNA silencing refers to a group of RNA-induced gene-silencing mechanisms that developed early in the eukaryotic lineage, probably for defence against pathogens and regulation of gene expression.
Paula S Salgado   +5 more
doaj   +1 more source

Robustness and modularity properties of a non-covalent DNA catalytic reaction [PDF]

open access: yes, 2009
The biophysics of nucleic acid hybridization and strand displacement have been used for the rational design of a number of nanoscale structures and functions. Recently, molecular amplification methods have been developed in the form of non-covalent DNA
Aldaye   +20 more
core   +4 more sources

Prokaryotic Argonautes – variations on the RNA interference theme

open access: yesMicrobial Cell, 2014
The discovery of RNA interference (RNAi) has been a major scientific breakthrough. This RNA-guided RNA interference system plays a crucial role in a wide range of regulatory and defense mechanisms in eukaryotes.
John van der Oost   +2 more
doaj   +1 more source

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