- R
- RB94
- RDH11
- RabGGTase
- RBFOX3
- RHBDF2
- RXFP1
- RXFP2
- RXFP3
- RXRA
- RXRB
- RXRG
- RASSF1
- RB1
- RECK
- ROPN1L
- RETN
- RETNLB
- RNF
- RANKL
- RNF39
- RNF31
- RYR2
- RNLS
- RELA
- RELB
- RACK1
- RUVBL1
- RUNX1
- RUVBL2
- RUNX2
- RUNX3
- RAC1
- Ras
- RARS
- RAC
- RAB38
- RAB7A
- RHEB
- Reductase
- RNMT
- RABV
- REG3G
- RAET1G
- RAET1L
- RAD51
- RAD52
- REV1
- RNASE
- RSF1
- RLBP1
- RPGR
- RAG1
- Replication protein
- RS1
- RPE1
- RP1
- RT
- RPA
- RAG2
- Rotavirus toxin
- RNAP
- RTN4
- RPE65
- RNAP I
- RDH
- RDH1
- RDH12
- RPN2
- RICTOR
- REG3A
- RRM1
- RRM2
- RANBP10
- RORA
- RBP1
- RZR
- RBP4
- RORγ
- RBP56
- RZRA
- RABAC1
- RED
- RTEL1
- RZRB
- RAGE
- RHA
- ROBO
- RSTK
- RAMP3
- RIG-I
- RBP
- RBM39
- RPE
- RAMP2
- RARA
- RARB
- RARG
- RAMP
- RYR
- Relaxin