PR:A1A5P2 rRRS1 ribosome biogenesis regulatory protein homolog (rat) rRRS1 PR:000000001 NCBITaxon:10116 RGD:1311403 UniProtKB:A1A5P2 PR:A1A5P2-1 rRRS1/iso:1 ribosome biogenesis regulatory protein homolog isoform 1 (rat) rRRS1/iso:1 PR:000000001 NCBITaxon:10116 RGD:1311403 PR:A1A5P2 UniProtKB:A1A5P2-1