Hi,

I want to use the "org.Rn.eg.db" package to get more information about my gene list, but I always get the same error message posted below. The keys "t1" is a character vector with ensembl gene id list. Could someone tell me what is wrong?
> geneinfo <- select(org.Rn.eg.db, keys=t1,
+                    columns=c("ENSEMBL","SYMBOL","GENENAME"),
+                    keytype="ENSEMBL")
Error in .testForValidKeys(x, keys, keytype, fks) :
  None of the keys entered are valid keys for 'ENSEMBL'. Please use the keys method to see a listing of valid arguments.
> head(t1)
[1] "ENSG00000000003" "ENSG00000000971" "ENSG00000001084" "ENSG00000001167" "ENSG00000001460" "ENSG00000001461"

Any help will be appreciated! Thanks

Your t1 vector contains HUMAN Ensembl IDs! Hence they keys are invalid for the rat database. Rat genes look like this: ENSRNOG00000018126 (Abca1).

For your genes you should use the org.Hs.eg.db.

> library(org.Hs.eg.db)
> t1 <- c( "ENSG00000000003", "ENSG00000000971", "ENSG00000001084", "ENSG00000001167", "ENSG00000001460", "ENSG00000001461")
>
> geneinfo <- select(org.Hs.eg.db, keys=t1,
+                 columns=c("ENSEMBL","SYMBOL","GENENAME"),
+                 keytype="ENSEMBL")
'select()' returned 1:1 mapping between keys and columns
> geneinfo
          ENSEMBL SYMBOL                                     GENENAME
1 ENSG00000000003 TSPAN6                                tetraspanin 6
2 ENSG00000000971    CFH                          complement factor H
3 ENSG00000001084   GCLC  glutamate-cysteine ligase catalytic subunit
4 ENSG00000001167   NFYA nuclear transcription factor Y subunit alpha
5 ENSG00000001460  STPG1       sperm tail PG-rich repeat containing 1
6 ENSG00000001461 NIPAL3                NIPA like domain containing 3
>