[BioC] GO over representation analysis
Heike Pospisil
pospisil at zbh.uni-hamburg.de
Mon Aug 25 10:42:31 CEST 2008
Hello Bioconductors,
I am looking for a method to perfom over representation analysis (Gene
Ontology) within R. I have data from the Maize Oligonucleotide Array (two
channel) with the GO categories for all probes on this array. I have
clustered the genes using Maanova and I am interested in GO over
representation of the gene lists from these clusters.
I know the GO tools from Bioconductor (e.g. GOstats), but I do not know how to
adapt the analysis to an 'unusual' array with no annotation data package and
now Entrez IDs. Any hints?
Thanks in advance,
Heike
--
Dr. Heike Pospisil | pospisil at zbh.uni-hamburg.de
University of Hamburg | Center for Bioinformatics
Bundesstrasse 43 | 20146 Hamburg, Germany
phone:+49-40-42838-7303 | fax: +49-40-42838-7312
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