Find gene IDs for affymetrix chip pd.porgene.1.1.st

Question

[serpalma.v]

Dear community,

I need to retireve the gene names for the probes in the affy array: PorGene-1_1-st

But when I do a biomart query I get an error when trying to match the attributes "ensembl_gene_id" with "PorGene-1_1-st". it returns the following:

Error in getBM(attributes = c("ensembl_gene_id", "PorGene-1_1-st"), filters = "PorGene-1_1-st",  : 
  Invalid attribute(s): PorGene-1_1-st
Please use the function 'listAttributes' to get valid attribute names

Why is not this not a proper attribute? . Well, it is not in the list, but why?.

Kind regards