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Related Concept Videos

Genome Annotation and Assembly03:36

Genome Annotation and Assembly

The genome refers to all of the genetic material in an organism. It can range from a few million base pairs in microbial cells to several billion base pairs in many eukaryotic organisms. Genome assembly refers to the process of taking the DNA sequencing data and putting it all back together in a correct order to create a close representation of the original genome. This is followed by the identification of functional elements on the newly assembled genome, a process called genome annotation.
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DNA Microarrays

Microarrays are high-throughput and relatively inexpensive assays that can be automated to analyze large quantities of data at a time. They are used in genome-wide studies to compare gene or protein expression under two varied conditions, such as healthy and diseased states. Microarrays consist of glass or silica slides on which probe molecules are covalently attached through surface functionalization. Most commonly, the slides are prepared through the chemisorption of silanes to silica...

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Related Experiment Video

Updated: Jul 13, 2026

Navigating MARRVEL, a Web-Based Tool that Integrates Human Genomics and Model Organism Genetics Information
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Published on: August 15, 2019

Interpreting microarray results with gene ontology and MeSH.

John D Osborne1, Lihua Julie Zhu, Simon M Lin

  • 1Robert H. Lurie Comprehensive Cancer Center, Northwestern University, Chicago, IL, USA.

Methods in Molecular Biology (Clifton, N.J.)
|July 20, 2007
PubMed
Summary

This study presents a workflow for interpreting gene lists from microarray experiments. It details converting gene identifiers and searching gene ontology (GO) and Medical Subject Headings (MeSH) for biological insights.

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Area of Science:

  • Bioinformatics
  • Genomics
  • Computational Biology

Background:

  • Microarray experiments generate large gene lists requiring interpretation.
  • Standardized methods are needed for analyzing and understanding gene expression data.
  • Ontologies like Gene Ontology (GO) and Medical Subject Headings (MeSH) provide structured vocabularies for biological information.

Purpose of the Study:

  • To describe a comprehensive workflow for interpreting gene lists derived from microarray experiments.
  • To demonstrate the conversion of gene identifiers using SOURCE and MatchMiner.
  • To illustrate the application of GO and MeSH ontologies for biological data mining.

Main Methods:

  • Gene lists from microarray experiments were processed.
  • Gene identifiers were converted using SOURCE and MatchMiner.
  • Converted gene lists were queried against GO and MeSH ontologies.
  • Tools such as DAVID, EASE, and GOMiner were used for GO enrichment analysis.
  • High-density array pattern interpreter was employed for MeSH mining.

Main Results:

  • A practical workflow for gene list interpretation was established.
  • Successful conversion of gene identifiers facilitated ontology searching.
  • Enrichment analysis using GO identified biological functions and pathways.
  • MeSH mining provided insights into disease associations and biological concepts.

Conclusions:

  • The described workflow enables effective interpretation of microarray gene lists.
  • Utilizing ontologies like GO and MeSH enhances biological discovery from gene expression data.
  • This approach provides a robust framework for researchers analyzing genomic data.