[BioC] How to extract probe sequence and probe name info from bpmap files

Laurent Gautier laurent at cbs.dtu.dk
Tue Jul 7 18:54:47 CEST 2009


zhen tao wrote:
> Dear all:
> 
> I'm trying to do a mapping  from probe sequence to genome using Biostrings.
> The array platform I used is arabidopsis tiling array 1.0R.  However, I have
> problems to extract probe sequence and probe names from bpmap files provided
> by affymetrix.

The probe sequences should be in the bpmap file, but note that thy are 
packed into a 7 byte character sequence.


L.




> I also tried to write a tpmap file. But it doesn't seems to
> contain the probe names info. Does anybody know how to extract the probe
> info and generate this kind of probe package like established 3' expression
> arrays? (eg. hgu95av2probe")
> 
> thanks,
> Tao Zhen
> NUS
> Singapore
> 
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> 
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