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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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Gene Families

Gene families consist of groups of genes proposed to have originated from a common ancestor. Typically these arise through events in which a gene or genes are mistakenly duplicated during cell division. Unlike their parent genes (which are subject to selection pressure to maintain function), these gene copies do not need to preserve their sequences and may evolve at a relatively faster rate.
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DaGO-Fun: tool for Gene Ontology-based functional analysis using term information content measures.

Gaston K Mazandu1, Nicola J Mulder

  • 1Computational Biology Group, Department of Clinical Laboratory Sciences, Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Medical School, Observatory, Cape Town, 7925, South Africa. gmazandu@cbio.uct.ac.za.

BMC Bioinformatics
|September 27, 2013
PubMed
Summary

DaGO-Fun is a new online tool that integrates various Gene Ontology (GO) similarity measures for protein analysis. It aids researchers in exploring, analyzing, and comparing GO terms and proteins, enhancing biological insights.

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Area of Science:

  • Bioinformatics
  • Computational Biology
  • Genomics

Background:

  • Gene Ontology (GO) data enhances protein analysis outcomes.
  • Numerous GO semantic similarity measures exist, integrating biological knowledge.
  • A unified tool is needed to explore diverse GO similarity approaches and applications.

Purpose of the Study:

  • To develop a unified online tool for exploring and analyzing Gene Ontology (GO) similarity measures.
  • To provide a platform for comparing different GO similarity approaches and their biological applications.

Main Methods:

  • Developed DaGO-Fun, an online tool integrating multiple GO similarity measures.
  • Utilizes GO data and UniProt protein annotations from the GOA project.
  • Precomputes GO term information content (IC) for rapid query responses.

Main Results:

  • DaGO-Fun offers a unified platform for GO term and protein analysis.
  • The tool incorporates various IC-based GO similarity measures (topology- and annotation-based).
  • Enables rapid exploration and comparison of GO similarity approaches.

Conclusions:

  • DaGO-Fun facilitates the selection of appropriate GO similarity measures for specific applications.
  • Includes biological applications such as gene retrieval, clustering, and term enrichment analysis.
  • Empowers researchers to effectively leverage GO semantic similarity in their studies.