[BioC] Annotation of Nimblegen Zebrafish Array
Ravi Karra
ravi.karra at gmail.com
Tue Feb 1 18:19:09 CET 2011
Hello all,
Thank you for maintaining this very informative mailing list. I am currently working with some gene expression data using the Nimblegen Zebrafish 12 x135K Expression platform. Unfortunately, my analysis has been limited by annotation. The probes were derived from a variety of sources, many of which are now out of date.
A bit reluctantly, I would like to remap the array to the latest zebrafish genome available (Zv9) at Ensembl so that I can then use biomart for subsequent annotation. I am able to map most of the probe sequences in the .ndf file to the Zv9 using matchPDict (basically using a minimally modified version of the code at http://manuals.bioinformatics.ucr.edu/home/ht-seq#TOC-Mapping-of-Affy-Probes-to-Transcrip).
Once I do this, I am stuck. How can I use these results to make an annotation file with PDInfoBuilder? How do I handle probes that do not align with Zv9? Can I get still use rma?
Thank you in advance.
Ravi
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