[BioC] GOHyperG function with ath1121501

[Thomas Girke]

I have a question regarding GOHyperG function in GOstat. Is it
possible to use this function with the Arabidopsis ath1121501
annotation package? The function GOHyperG requires a vector of
LocusLink identifiers, however LocusLink identifiers don't seem to be 
available in the latest ath1121501 package since it is based on
data sources from the Tair project (which is a good choice).
Is there a way to work around this limitation and use this annotation
package with GOHyperG?

I have tried to use alternative loci identifiers, but this resulted
in the below error message. Here is an example of what I have tried to do:

> library(GOstats)
> library(ath1121501)
> library(GO)
> zz1<-as.list(ath1121501ACCNUM) # or any other available mapping
> zz2<-unique(unlist(zz1))[1:100]
> xx<-GOHyperG(zz2, lib="ath1121501", what="MF")

Error in get(x, envir, mode, inherits) : variable "ath1121501LOCUSID" of mode "environment" was not found
Error in as.list(getDataEnv("LOCUSID", lib)) :
unable to find the argument 'x' in selecting a method for function 'as.list'

Thanks,

Thomas

-- 
Thomas Girke
University of California
Riverside, CA 92521