[BioC] Agilent G4112F with hgug4112a.db?

Francois Pepin fpepin at cs.mcgill.ca
Sun Nov 9 21:36:04 CET 2008

Hi Philipp,

yes, hgug4112a.db does apply to to 4x44k arrays (the F version).

The differences between the 1x44k and the 4x44k arrays lie in the  array 
geometry, the control probes (the 4x44k has some extra ones), and the 
position of probes*.

The actual non-control probes have the same sequences, so they map to 
the same genes. This means that the annotation package applies as well.


*: a few probes are also present a few places in the arrays, and I think 
their number differs also.

Philipp Pagel wrote:
> 	Hi!
> I have some data from Agilent G4112F whole human genome arrays.
> I would like to do some analysis of GO terms etc. and was
> wondering if the hgug4112a.db package still applies to the 'F'
> version. Looking at a few examples seems to suggeest that it does
> but it would be great if someone could confirm (or refute) this.
> cu
> 	Philipp

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