Retrieve hgnc_symbol from XM_ refseqs using BiomaRt

Retrieve hgnc_symbol from XM_ refseqs using BiomaRt

1

I have some predicted RefSeqs, such as XM_005261067 or XM_005255527 and would like to retrieve the hgnc_symbol using BiomaRt like this:

refseqids_XM = c("XM_005261067","XM_005255527")
gene_XM <- getBM(attributes=c("refseq_mrna_predicted","hgnc_symbol"), 
             filters="refseq_mrna_predicted",
             values=refseqids_XM, 
             mart=ensembl)
gene_XM

However, this gives me no result:

[1] refseq_mrna_predicted refseq_mrna          
<0 Zeilen> (oder row.names mit Länge 0)

I am not sure, but maybe these XM RefSeqs are too old and were removed from the dataset? Unfortunately, this is what I have to work with, as this is returned from our analysis pipline. Any idea on how I could still retrieve information using these XM RefSeqs would be highly appreciated.


refseq_mrna_predicted


biomaRt


refseq


XM

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