Rna Removal Step
Rna Removal Step - Related Videos
02:43
Deparaffinization and Rehydration of Tissue Sections: A Two-step Procedure to Remove Paraffin Wax from FFPE Tissue Slides Followed by Tissue Rehydration
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2023
In this video, we demonstrate the processing of FFPE or formalin-fixed paraffin-embedded sections obtained from gastrointestinal tumor tissue. The deparaffinization and rehydration steps allow the processing of the tissue specimen for subsequent analytical applications.
02:24
Regulation of Expression Occurs at Multiple Steps
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2020
Gene expression can be regulated at almost every step from gene to protein. Transcription is the step that is most commonly regulated. This involves the binding of proteins to short regulatory sequences on the DNA. This association can either promote or inhibit the transcription of a gene associated with the respective sequence. Transcription results in the generation of precursor (pre-mRNA) that consists of both exons and introns, which needs further processing before being translated to a...
09:54
RNA-Seq
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2023
Among different methods to evaluate gene expression, the high-throughput sequencing of RNA, or RNA-seq. is particularly attractive, as it can be performed and analyzed without relying on prior available genomic information. During RNA-seq, RNA isolated from samples of interest is used to generate a DNA library, which is then amplified and sequenced. Ultimately, RNA-seq can determine which genes are expressed, the levels of their expression, and the presence of any previously unknown transcripts.
12:31
A Step by Step Protocol for Subretinal Surgery in Rabbits
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Cited by 30 •
2016
Retinal pigment epithelium (RPE) replacement strategies and gene-based therapy are considered for several retinal degenerative conditions. For clinical translation, large eye animal models are required to study surgical techniques applicable in patients. Here we present a rabbit model for subretinal surgery geared towards RPE transplantation, which is versatile and cost-efficient.
11:32
Mapping RNA-RNA Interactions Globally Using Biotinylated Psoralen
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Cited by 20 •
2017
Here, we detail the method of Sequencing of Psoralen crosslinked, Ligated, and Selected Hybrids (SPLASH), which enables genome-wide mapping of intramolecular and intermolecular RNA-RNA interactions in vivo. SPLASH can be applied to study RNA interactomes of organisms including yeast, bacteria and humans.
FAQs
RNase hydrolyzes RNA molecules into smaller fragments, reducing intact RNA contamination in the DNA preparation. This enzymatic action targets the unwanted nucleic acid while supporting recovery of cleaner genomic DNA for later analysis. The effectiveness of the step depends on subsequent separation and cleanup, because RNA fragments still need to be removed from the preparation rather than merely broken down.
Enzymatic digestion alone does not complete purification because the resulting RNA fragments and other dissolved material remain in the sample. Precipitation, washing, or column-based cleanup provides a separation stage that helps retain purified DNA while removing digested material. This additional processing improves sample consistency and reduces contaminants that could complicate downstream molecular measurements.
Residual RNA can distort nucleic-acid concentration measurements and contribute to inconsistent assessments of sample quality. Those effects may influence how a preparation is interpreted before PCR, sequencing, genotyping, or molecular diagnostic testing. Removing the contaminant therefore supports more dependable evaluation of the DNA input and helps reduce ambiguity in downstream results.
A typical workflow adds RNase to the DNA preparation, allows RNA to be hydrolyzed into smaller fragments, and then applies a cleanup method. The cleanup may use precipitation, washing, or a column-based approach to separate the digested material from DNA. The resulting preparation is then suited to downstream analysis requiring cleaner genomic DNA.
Researchers include it when RNA contamination could compromise the quality or interpretation of a DNA preparation. It is particularly relevant before PCR, sequencing, genotyping, and other molecular diagnostic workflows, where concentration measurements and sample-quality assessments influence later analysis. The step is useful in both biomedical research and medical applications that require consistent DNA inputs.
The principal outcome is a cleaner genomic DNA preparation with improved accuracy and consistency for downstream testing. In medicine and biomedical research, that quality improvement can support more reliable PCR, sequencing, genotyping, and molecular diagnostic workflows. It does not replace those analyses; instead, it prepares the nucleic-acid input so contaminating RNA is less likely to affect interpretation.