| Putative uncharacterized protein (Zinc finger protein 941) | Zfp941 BC066028 | Q3URY5 | 1 |
| Putative uncharacterized protein (Zinc finger, MYND-type-containing 8) | Zmynd8 Prkcbp1 | Q3U1M7 | 1 |
| Putative uncharacterized protein (Zinc finger, MYND-type-containing 8) | Zmynd8 Prkcbp1 | Q3UH28 | 1 |
| PWWP domain-containing protein 2A | Pwwp2a Kiaa1935 | Q69Z61 | 1 |
| Pyridoxal kinase | Pdxk | D3Z7R1 | 1 |
| Pyrin and HIN domain-containing protein 1 (Interferon-inducible protein 209) (Ifi-209) (Interferon-inducible protein X) (Interferon-inducible protein p209) | Pyhin1 Ifi209 Ifix | Q8BV49 | 1 |
| Pyruvate carboxylase (EC 6.4.1.1) | Pcx | Q3TCQ3 | 1 |
| Pyruvate carboxylase (EC 6.4.1.1) | Pcx mCG_8397 | G5E8R3 | 1 |
| Queuine tRNA-ribosyltransferase accessory subunit 2 (Queuine tRNA-ribosyltransferase domain-containing protein 1) | Qtrt2 Qtrtd1 | B8ZXI1 | 1 |
| Quinone oxidoreductase (Fragment) | Cryz | D3YWU6 | 1 |
| Quinone oxidoreductase-like protein 1 | Cryzl1 | D3YZD6 | 1 |
| R-spondin-1 (Cysteine-rich and single thrombospondin domain-containing protein 3) (Cristin-3) (mCristin-3) (Roof plate-specific spondin-1) | Rspo1 | Q9Z132 | 1 |
| R3H domain-containing 1 (R3hdm1 protein) | R3hdm1 R3hdm | Q80ZH9 | 1 |
| Rab GDP dissociation inhibitor | Gdi2 Gdi3 | Q9CZ18 | 1 |
| Rab GTPase-binding effector protein 2 (Rabaptin-5beta) | Rabep2 Rabpt5b | Q91WG2 | 1 |
| Rab-like protein 6 (GTP-binding protein Parf) (Rab-like protein 1) (RBEL1) | Rabl6 Parf | Q5U3K5 | 1 |
| RAB22A, member RAS oncogene family, isoform CRA_c (Ras-related protein Rab-22A) | Rab22a mCG_13765 | A2ARZ7 | 1 |
| RAB3A, member RAS oncogene family, isoform CRA_a (Rab3A) | Rab3a Rab3A mCG_14795 | Q0PD63 | 1 |
| Rab5B | Rab5b Rab5B | Q0PD56 | 1 |
| RAB6A-GEF complex partner protein 1 | Ric1 C030046E11Rik | E9QPA1 | 1 |
| RAB6A-GEF complex partner protein 1 (Fragment) | Ric1 C030046E11Rik | F6S7U1 | 1 |
| RAB6A-GEF complex partner protein 1 (Protein RIC1 homolog) | Ric1 Kiaa1432 | Q69ZJ7 | 1 |
| Rabenosyn-5 (FYVE finger-containing Rab5 effector protein rabenosyn-5) (RAB effector RBSN) (Zinc finger FYVE domain-containing protein 20) | Rbsn Zfyve20 | Q80Y56 | 1 |
| Rabphilin-3A (Exophilin-1) | Rph3a | P47708 | 1 |
| RAC-alpha serine/threonine-protein kinase | Akt1 | D3Z783 | 1 |
| RAC-beta serine/threonine-protein kinase | Akt2 | F8WHG5 | 1 |
| Raftlin (Raft-linking protein) | Rftn1 Kiaa0084 | Q6A0D4 | 1 |
| Ragulator complex protein LAMTOR2 | Lamtor2 | D3YTS4 | 1 |
| Ragulator complex protein LAMTOR4 (Late endosomal/lysosomal adaptor and MAPK and MTOR activator 4) [Cleaved into: Ragulator complex protein LAMTOR4, N-terminally processed] | Lamtor4 | Q8CF66 | 1 |
| Ral GTPase-activating protein subunit alpha-2 (Fragment) | Ralgapa2 | F7CGP0 | 1 |
| Ral GTPase-activating protein subunit beta | Ralgapb | A2ACC6 | 1 |
| Ral GTPase-activating protein subunit beta | Ralgapb | E9Q0J2 | 1 |
| Ral GTPase-activating protein subunit beta | Ralgapb | F8WHN4 | 1 |
| Ral GTPase-activating protein subunit beta (p170) | Ralgapb Kiaa1219 | Q8BQZ4 | 1 |
| Ral guanine nucleotide dissociation stimulator-like 2 (RalGDS-like 2) (RalGDS-like factor) (Ras-associated protein RAB2L) | Rgl2 Rab2l Rlf | Q61193 | 1 |
| Ral guanine nucleotide dissociation stimulator-like 3 (RalGDS-like 3) (RalGDS-related effector protein of M-Ras) (Ras pathway modulator) (RPM) | Rgl3 | Q3UYI5 | 1 |
| RalBP1-associated Eps domain-containing protein 1 | Reps1 | D3Z2E3 | 1 |
| RalBP1-associated Eps domain-containing protein 1 | Reps1 | E9Q632 | 1 |
| RalBP1-associated Eps domain-containing protein 1 (Fragment) | Reps1 | F6R6F1 | 1 |
| Rap guanine nucleotide exchange factor (GEF) 6 | Rapgef6 | Q5NCJ0 | 1 |
| Rap guanine nucleotide exchange factor (GEF) 6 | Rapgef6 | Q5NCJ1 | 1 |
| Rap guanine nucleotide exchange factor (GEF) 6 | Rapgef6 | Q5NCJ5 | 1 |
| Rap guanine nucleotide exchange factor 2 (Cyclic nucleotide ras GEF) (CNrasGEF) (Neural RAP guanine nucleotide exchange protein) (nRap GEP) (PDZ domain-containing guanine nucleotide exchange factor 1) (PDZ-GEF1) (RA-GEF-1) (Ras/Rap1-associating GEF-1) | Rapgef2 Kiaa0313 Pdzgef1 | Q8CHG7 | 1 |
| Rap guanine nucleotide exchange factor 3 | Rapgef3 | E9Q2E5 | 1 |
| Rap guanine nucleotide exchange factor 3 | Rapgef3 | H3BK39 | 1 |
| Ras and EF-hand domain-containing protein homolog | Rasef | Q5RI75 | 1 |
| Ras and Rab interactor 1 (Ras interaction/interference protein 1) | Rin1 | Q921Q7 | 1 |
| Ras and Rab interactor 2 (Ras interaction/interference protein 2) | Rin2 | Q9D684 | 1 |
| Ras association (RalGDS/AF-6) and pleckstrin homology domains 1 | Raph1 | F2Z4B7 | 1 |
| Ras association domain-containing protein 1 | Rassf1 | B0QZV7 | 1 |
| Ras association domain-containing protein 1 (Protein 123F2) | Rassf1 | Q99MK9 | 1 |
| Ras GTPase-activating protein 4 (Calcium-promoted Ras inactivator) (Ras p21 protein activator 4) (RasGAP-activating-like protein 2) | Rasa4 Capri Kiaa0538 | Q6PFQ7 | 1 |
| RAS protein activator-like 2 | Rasal2 | E9PW37 | 1 |
| Ras-related GTP-binding protein D (Rag D) (RagD) | Rragd Ragd | Q7TT45 | 1 |
| Ras-related protein M-Ras (Fragment) | Mras | D3Z2V6 | 1 |
| Ras-related protein Rab-11A | Rab11a | E9Q6B3 | 1 |
| Ras-related protein Rab-11B | Rab11b | G3UZD3 | 1 |
| Ras-related protein Rab-11B (Fragment) | Rab11b | G3UZL4 | 1 |
| Ras-related protein Rab-13 | Rab13 | D3YUS4 | 1 |
| Ras-related protein Rab-14 | Rab14 | A2AL34 | 1 |
| Ras-related protein Rab-17 (Fragment) | Rab17 | D3YVQ6 | 1 |
| Ras-related protein Rab-23 (Protein open brain) (Rab-15) | Rab23 Opb | P35288 | 1 |
| Ras-related protein Rab-25 (Fragment) | Rab25 | D3YYB3 | 1 |
| Ras-related protein Rab-30 | Rab30 | D3YV16 | 1 |
| Ras-related protein Rab-39B | Rab39b | Q8BHC1 | 1 |
| Ras-related protein Rab-3B | Rab3b | A2A7Z6 | 1 |
| Ras-related protein Rab-3C | Rab3c | P62823 | 1 |
| Ras-related protein Rab-7L1 | Rab29 Rab7l1 | E9QLQ7 | 1 |
| Ras-related protein Rab-7L1 (Rab-7-like protein 1) | Rab29 Rab7l1 | Q91YQ1 | 1 |
| Ras-related protein Rab-9B | Rab9b | Q8BHH2 | 1 |
| Ras-related protein Rap-2a (Fragment) | Rap2a | F6W8Q2 | 1 |
| Ras/Rap GTPase-activating protein SynGAP (Fragment) | Syngap1 | A0A0A6YVS6 | 1 |
| RB1-inducible coiled-coil protein 1 (Fragment) | Rb1cc1 | F7CC56 | 1 |
| RB1-inducible coiled-coil protein 1 (Fragment) | Rb1cc1 | E9PX56 | 1 |
| Reactive oxygen species modulator 1 (ROS modulator 1) (Protein MGR2 homolog) | Romo1 | P60603 | 1 |
| Rearranged L-myc fusion sequence | Rlf | E9Q532 | 1 |
| Receptor expression-enhancing protein 1 | Reep1 D6Ertd253e | Q8BGH4 | 1 |
| Receptor expression-enhancing protein 3 | Reep3 D10Ucla1 | Q99KK1 | 1 |
| Receptor expression-enhancing protein 4 | Reep4 | Q8K072 | 1 |
| Receptor protein serine/threonine kinase (EC 2.7.11.30) | Tgfbr1 | E9Q418 | 1 |
| Receptor protein serine/threonine kinase (EC 2.7.11.30) | Bmpr1a | Q60607 | 1 |
| Receptor-interacting serine/threonine-protein kinase 1 (Fragment) | Ripk1 | F7D1J2 | 1 |
| Receptor-type tyrosine-protein phosphatase beta (Protein-tyrosine phosphatase beta) (R-PTP-beta) (EC 3.1.3.48) (Vascular endothelial protein tyrosine phosphatase) (VE-PTP) | Ptprb | B2RU80 | 1 |
| Receptor-type tyrosine-protein phosphatase delta | Ptprd | E9PVW8 | 1 |
| Receptor-type tyrosine-protein phosphatase delta | Ptprd | E9Q7I7 | 1 |
| Receptor-type tyrosine-protein phosphatase delta | Ptprd | G3UWK6 | 1 |
| Receptor-type tyrosine-protein phosphatase delta | Ptprd | G3UX60 | 1 |
| Receptor-type tyrosine-protein phosphatase delta | Ptprd | G3UY75 | 1 |
| Receptor-type tyrosine-protein phosphatase delta | Ptprd | G3UYU6 | 1 |
| Receptor-type tyrosine-protein phosphatase delta | Ptprd | Q5SPA9 | 1 |
| Receptor-type tyrosine-protein phosphatase eta | Ptprj | A2AWF9 | 1 |
| Receptor-type tyrosine-protein phosphatase gamma (Protein-tyrosine phosphatase gamma) (R-PTP-gamma) (EC 3.1.3.48) | Ptprg | Q05909 | 1 |
| Receptor-type tyrosine-protein phosphatase R (R-PTP-R) (EC 3.1.3.48) (Phosphotyrosine phosphatase 13) (Protein-tyrosine-phosphatase SL) | Ptprr Ptp13 | Q62132 | 1 |
| Receptor-type tyrosine-protein phosphatase zeta | Ptprz1 | A0A0J9YVD2 | 1 |
| Recombining binding protein suppressor of hairless-like protein (Transcription factor RBP-L) | Rbpjl Rbpl Rbpsuhl | O08674 | 1 |
| Redox-regulatory protein FAM213A (Fragment) | Fam213a 5730469M10Rik | D3YYG8 | 1 |
| Redox-regulatory protein FAM213A (Fragment) | Fam213a 5730469M10Rik | D3Z252 | 1 |
| Redox-regulatory protein FAM213A (Fragment) | Fam213a 5730469M10Rik | D3Z398 | 1 |
| Redox-regulatory protein FAM213A (Peroxiredoxin-like 2 activated in M-CSF stimulated monocytes) (Protein PAMM) | Fam213a Pamm | Q9CYH2 | 1 |
| Reelin (EC 3.4.21.-) (Reeler protein) | Reln Rl | Q60841 | 1 |