I want to select all the ribossomal genes from mouse. I tried to use Rat Genome database rgd.mcw.edu) and select the ribossomal genes but some of the genes that are listed in my Sequencing results are not present there (such as Rps28 gene and some more). I am trying now to select from Biomart but I cannot find any attribute that can classify my Ensembl_id into for example mRNA, rRNA etc.
Is there a way to get all rRNA genes from biomart or is there a better library to achieve my goal?
It seems Ensembl is not a complete annotation of rRNA genes. There are only 5S and 5.8S in Human Ensembl. Correct me if I am wrong. Thx