- Ras Related GTP Binding Protein B (RRAGB)
- Ras Related GTP Binding Protein C (RRAGC)
- Ras Related GTP Binding Protein D (RRAGD)
- Related RAS Viral Oncogene Homolog 2 (RRAS2)
- Ribonucleotide Reductase M2B (RRM2B)
- RNA Polymerase I Transcription Factor homolog (RRN3)
- Radial Spoke Head Like Protein 1 (RSHL1)
- R-Spondin 1 (RSPO1)
- R-Spondin 2 (RSPO2)
- R-Spondin 3 (RSPO3)
- RUN And FYVE Domain Containing Protein 1 (RUFY1)
- RUN Domain Containing Protein 3A (RUNDC3A)
- RuvB Like Protein 2 (RUVBL2)
- RuvB Like Protein 1 (RUVBL1)
- Suppressor Of Actin Mutations 1 Like Protein (SACM1L)
