UNIT 7.11 Gene Expression Analysis via Multidimensional Scaling
Published Online: 1 JUL 2005
Copyright © 2005 by John Wiley & Sons, Inc.
Lab Protocol Title
Current Protocols in Bioinformatics
How to Cite
Chen, Y. and Meltzer, P. S. 2005. Gene Expression Analysis via Multidimensional Scaling. Current Protocols in Bioinformatics. 10:7.11:7.11.1–7.11.9.
- Published Online: 1 JUL 2005
- Published Print: JUN 2005
Expression profiling of biological samples using microarray technologies has proven to be a powerful tool for molecular classification and biomarker identification. Visualization of similarities between biological samples from their molecular signatures is essential in forming new hypotheses. Multidimensional scaling is one of the methods that converts the structure in the similarity matrix to a simple geometrical picture: the larger the dissimilarity between two samples (evaluated through gene expression profiling), the further apart the points representing the experiments in the picture should be. In this unit, we will discuss the mathematical fundamentals of this method, along with step-by-step procedures that allow users to quickly obtain the results, provided that all necessary resources are ready. Examples of applying the MDS program and the interpretation of these results are also provided in this unit
- Gene Expression Profiling;
- Similarity, Multidimensional Scaling (MDS);