Rna Substrate Generation
Rna Substrate Generation - Related Videos
11:53
Substrate Generation for Endonucleases of CRISPR/Cas Systems
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Cited by 4 •
2012
CRISPR/Cas systems mediate adaptive immunity in Bacteria and Archaea. Many Cas proteins are proposed to act as endoribonucleases acting on crRNA precursors of varying length. Here we illustrate three different approaches to generate pre-crRNA substrates for the biochemical analysis of Cas endonuclease activity.
09:24
Micropunching Lithography for Generating Micro- and Submicron-patterns on Polymer Substrates
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Cited by 1 •
2012
A micropunching lithography approach is developed to generate micro- and submicron-patterns on top, sidewall and bottom surfaces of polymer substrates. It overcomes the obstacles of patterning conducting polymers and generating sidewall patterns. This method allows rapid fabrication of multiple features and is free of aggressive chemistry.
16:42
Generation of RNA/DNA Hybrids in Genomic DNA by Transformation using RNA-containing Oligonucleotides
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Cited by 4 •
2010
This work shows how to form an RNA/DNA hybrid at the chromosomal level and reveal transfer of genetic information from RNA to genomic DNA in yeast cells.
09:16
Analysis of RNA Processing Reactions Using Cell Free Systems: 3' End Cleavage of Pre-mRNA Substrates in vitro
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Cited by 1 •
2014
RNA polymerase II synthesizes a precursor RNA that extends beyond the 3' end of the mature mRNA. The end of the mature RNA is generated cotranscriptionally, at a site dictated by RNA sequences, via the endonuclease activity of the cleavage complex. Here, we detail the method to study cleavage reactions in vitro.
10:15
Small RNA Transfection in Primary Human Th17 Cells by Next Generation Electroporation
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Cited by 5 •
2017
Next generation electroporation is an efficient method for transfecting human Th17 cells with small RNAs to alter gene expression and cell behavior.
FAQs
The DNA template supplies the sequence that RNA polymerase copies during in vitro transcription, allowing researchers to produce an RNA molecule with a planned composition. This sequence control is essential when an assay examines cleavage, processing, modification, binding, or enzymatic activity, because differences in the RNA sequence can change how the substrate is recognized or acted upon.
RNA structure can influence molecular recognition and enzymatic behavior, so preparation conditions should preserve the transcript’s intended form. A structurally consistent substrate helps distinguish effects caused by the biological reaction from variation introduced during handling. This is particularly important for studies of ribozymes and RNA-associated proteins, whose activities depend on how they interact with RNA.
T7 RNA polymerase serves as the enzyme that transcribes the desired RNA sequence from a DNA template in vitro. Its use connects template design with production of a defined experimental reactant. Once generated and prepared consistently, the transcript can be introduced into assays that test RNA-directed reactions or interactions without relying on an uncontrolled RNA source.
Substrate quality affects whether observed differences reflect the tested mechanism or variation in the RNA preparation. Consistent sequence control, purification, and structural preservation produce more comparable reactants across experiments. As a result, researchers can interpret changes in cleavage, processing, modification, binding, or enzymatic activity with greater confidence and improve the reproducibility of RNA-focused assays.
A typical workflow begins with a DNA template carrying the desired RNA sequence. An RNA polymerase, such as T7 RNA polymerase, transcribes that template in vitro. The resulting RNA is then purified and prepared under conditions intended to preserve its structure before use as a defined reactant in biochemical or molecular biology experiments.
Prepared RNA substrates support assays that measure RNA cleavage, processing, modification, and binding. They can also be used to examine enzymatic activity, including reactions involving ribozymes or RNA-associated proteins. Because the sequence and preparation are controlled, the same general substrate-generation approach can support comparisons among different RNA reactions and molecular recognition events.
In biology, defined RNA substrates provide controlled reactants for investigating RNA metabolism, regulation, and molecular recognition. Researchers can use them to connect a measured reaction with a particular RNA sequence and preparation state. This controlled design helps clarify how RNA-processing activities, ribozymes, and RNA-associated proteins function under experimental conditions.