When reading documentation about DAVID, I understood that the DAVID id (the "did") was a central identifier for all pair-wise flat files... So, when creating a Knowledgebase request, I expected I would be able to choose this identifier as "central identifier", but I can't. In any case, I'm trying to download some files for the Streptomycetaceae family, and if I can't use the DID identifier, I would have liked to use the RefSeq_protein one, but that is also not an option.
I tried to select locus_tag and Refseq_RNA (even though I was looking for protein) and GenBank_Accession, but both result in the e-mail saying "...is not available for the selected species: 2062:STREPTOMYCETACEAE. Please try another central identifier or species selection."
I don't understand what I am doing wrong. Any help would be greatly appreciated