What is small RNA? Small RNAs, as the name suggests, are RNA molecules, short in length (from around 18 to 30 nucleotides). They are non-coding and have been considered as “junk” sequences until more advanced tools and technologies, such as ...
Read More »DIANA-mAP – analyzing miRNA from raw RNA sequencing data to quantification
microRNAs (miRNAs) are small non-coding RNAs (~22 nts) that are considered central post-transcriptional regulators of gene expression and key components in many pathological conditions. Next-Generation Sequencing (NGS) technologies have led to inexpensive, massive data production, revolutionizing every research aspect in ...
Read More »BrumiR – a toolkit for de novo discovery of microRNAs from sRNA-seq data
MicroRNAs (miRNAs) are small non-coding RNAs that are key players in the regulation of gene expression. In the last decade, with the increasing accessibility of high-throughput sequencing technologies, different methods have been developed to identify miRNAs...
Read More »Accurate adapter information is crucial for reproducibility and reusability in small RNA-Seq studies
A necessary pre-processing data analysis step is the removal of adapter sequences from the raw reads. While most adapter trimming tools require adapter sequence as an essential input, adapter information is often incomplete or missing. This can impact quantification of ...
Read More »seqclusterViz – visualization of the small RNA transcriptome
The study of small RNAs provides us with a deeper understanding of the complexity of gene regulation within cells. Of the different types of small RNAs, the most important in mammals are miRNA, tRNA fragments and piRNAs. Using small RNA-seq ...
Read More »TIGER – bioinformatic analysis of endogenous and exogenous small RNAs
To comprehensively study extracellular small RNAs (sRNA) by sequencing (sRNA-seq), researchers at the Vanderbilt University Medical Center developed a novel pipeline to overcome current limitations in analysis entitled, "Tools for Integrative Genome analysis...
Read More »A Small RNA isolation and sequencing protocol and its application to assay CRISPR RNA biogenesis
Next generation high-throughput sequencing has enabled sensitive and unambiguous analysis of RNA populations in cells. Here, Stanford University researchers describe a method for isolation and strand...
Read More »Systematic comparison of small RNA library preparation protocols for next-generation sequencing
Next-generation sequencing technologies have revolutionized the study of small RNAs (sRNAs) on a genome-wide scale. However, classical sRNA library preparation methods introduce serious bias, mainly during adapter ligation steps. Several types...
Read More »Preparation of highly multiplexed small RNA sequencing libraries
MicroRNAs (miRNAs) are ~22-nucleotide-long small non-coding RNAs that regulate the expression of protein-coding genes by base pairing to partially complementary target sites, preferentially located in the 3´ untranslated region (UTR) of target mRNAs. The expression and function of miRNAs have ...
Read More »Novel small RNA spike-in oligonucleotides enable absolute normalization of small RNA-Seq data
Normalization of high-throughput small RNA sequencing (sRNA-Seq) data is required to compare sRNA levels across different samples. Commonly used relative normalization approaches can cause erroneous conclusions due to fluctuating small RNA populations between tissues. Researchers from the Austrian Academy of ...
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