Related Experiment Video
Updated: Feb 4, 2026

Cloud-Based Phrase Mining and Analysis of User-Defined Phrase-Category Association in Biomedical Publications
Published on: February 23, 2019
QuagmiR: a cloud-based application for isomiR big data analytics
Xavier Bofill-De Ros1, Kevin Chen1, Susanna Chen1
1RNA Mediated Gene Regulation Section, RNA Biology Laboratory, Center for Cancer Research, National Cancer Institute, Frederick, MD, USA.
QuagmiR is a new cloud-based tool for analyzing miRNA isoforms (isomiRs) in next-generation sequencing data. This tool helps researchers understand the unique role of isomiRs in cancer development.
Area of Science:
- Genomics
- Bioinformatics
- Molecular Biology
Background:
- MicroRNAs (miRNAs) are key regulators of gene expression.
- miRNA isoforms (isomiRs) have emerged as significant players in cancer development.
- Analyzing isomiRs is crucial for understanding their role in disease.
Purpose of the Study:
- To introduce QuagmiR, the first cloud-based tool for analyzing isomiRs from next-generation sequencing (NGS) data.
- To provide a flexible and customizable platform for isomiR detection and annotation.
- To support diverse research needs in cancer genomics.
Main Methods:
- Development of QuagmiR, a Python-based tool.
- Implementation of a novel and flexible searching algorithm for heterogeneous isomiR detection.
- Cloud-based and command-line accessibility for broad user adoption.
Main Results:
- QuagmiR enables the analysis of isomiRs from NGS data.
- The tool offers extensive customization for query processes and reference databases.
- It facilitates the detection and annotation of diverse isomiR variants.
Conclusions:
- QuagmiR represents a significant advancement in isomiR analysis tools.
- The tool's cloud-based nature and flexibility enhance accessibility for cancer researchers.
- QuagmiR aids in elucidating the functional significance of isomiRs in cancer.
Related Concept Videos
Development of Analytical Methods
Analyte Adsorption and Distribution
Jung's Analytical Theory
Graphical and Analytic Representation of Sinusoids
The first step is measuring the peak-to-peak value, which is twice the amplitude of the sinusoid. This provides information about the maximum voltage swing of the waveform.
Secondly, the period and angular frequency are determined. The period is the time taken for one complete cycle of the waveform, while...
How Data are Classified: Categorical Data
Data are classified based on whether they are measurable or not. Categorical data cannot be measured; instead, it can be divided into categories. For example, if Y denotes a person's party affiliation, some examples of Y include...
How Data are Classified: Numerical Data
Quantitative data may be either discrete or continuous. All quantitative data that take on only specific numerical...

