UNIT 7.3 Analysis of Gene-Expression Data Using J-Express

  1. Anne Kristin Stavrum1,2,
  2. Kjell Petersen3,
  3. Inge Jonassen1,3,
  4. Bjarte Dysvik4

Published Online: 1 MAR 2008

DOI: 10.1002/0471250953.bi0703s21

Current Protocols in Bioinformatics

Current Protocols in Bioinformatics

How to Cite

Stavrum, A. K., Petersen, K., Jonassen, I. and Dysvik, B. 2008. Analysis of Gene-Expression Data Using J-Express. Current Protocols in Bioinformatics. 21:7.3:7.3.1–7.3.25.

Author Information

  1. 1

    University of Bergen, Bergen, Norway

  2. 2

    Center for Medical Genetics and Molecular Medicine, Haukeland University Hospital, Bergen, Norway

  3. 3

    Computational Biology Unit, BCCS, University of Bergen, Bergen, Norway

  4. 4

    MolMine AS, Thormoehlens, Bergen, Norway

Publication History

  1. Published Online: 1 MAR 2008
  2. Published Print: MAR 2008


The J-Express package has been designed to facilitate the analysis of microarray data with an emphasis on efficiency, usability, and comprehensibility. The J-Express system provides a powerful and integrated platform for the analysis of microarray gene expression data. It is platform-independent in that it requires only the availability of a Java virtual machine on the system. The system includes a range of analysis tools and a project management system supporting the organization and documentation of an analysis project. This unit describes the J-Express tool, emphasizing central concepts and principles, and gives examples of how it can be used to explore gene expression data sets. Curr. Protoc. Bioinform. 21:7.3.1-7.3.25. © 2008 by John Wiley & Sons, Inc.


  • gene expression;
  • J-Express;
  • microarray;
  • spot intensity quantitation