| Receptor-type tyrosine-protein phosphatase S | PTPRS | G8JL96 | 1 |
| Receptor-type tyrosine-protein phosphatase T (R-PTP-T) (EC 3.1.3.48) (Receptor-type tyrosine-protein phosphatase rho) (RPTP-rho) | PTPRT KIAA0283 | O14522 | 1 |
| Reelin (EC 3.4.21.-) | RELN | Q9UDQ2 | 1 |
| Regulating synaptic membrane exocytosis protein 1 (Fragment) | RIMS1 | E5RGM0 | 1 |
| Regulating synaptic membrane exocytosis protein 4 (RIM4 gamma) (Rab3-interacting molecule 4) (RIM 4) | RIMS4 C20orf190 | Q9H426 | 1 |
| Regulation of nuclear pre-mRNA domain-containing protein 1A (Fragment) | RPRD1A | K7EP82 | 1 |
| Regulator of chromosome condensation (Cell cycle regulatory protein) (Chromosome condensation protein 1) | RCC1 CHC1 | Q16269 | 1 |
| Regulator of chromosome condensation (Fragment) | RCC1 | C9JW69 | 1 |
| Regulator of G-protein signaling 12 (RGS12) | RGS12 | O14924 | 1 |
| Regulator of G-protein signaling 2 (RGS2) (Cell growth-inhibiting gene 31 protein) (G0/G1 switch regulatory protein 8) | RGS2 G0S8 GIG31 | P41220 | 1 |
| Regulator of G-protein signaling 21 (RGS21) | RGS21 | Q2M5E4 | 1 |
| Regulator of G-protein signaling 22 (RGS22) | RGS22 | Q8NE09 | 1 |
| Regulator of G-protein signaling 3 (RGP3) (RGS3) | RGS3 | P49796 | 1 |
| Regulator of G-protein signaling 5 (RGS5) | RGS5 | O15539 | 1 |
| Regulator of G-protein signaling 8 (RGS8) | RGS8 | P57771 | 1 |
| Regulator of G-protein signaling 9 (RGS9) | RGS9 | O75916 | 1 |
| Regulator of G-protein signaling protein-like | RGSL1 RGSL RGSL2 | A5PLK6 | 1 |
| Regulator of G-protein-signaling 6 (cDNA FLJ53896, highly similar to Regulator of G-protein signaling 6) | RGS6 | B7Z7N5 | 1 |
| Regulator of G-protein-signaling 7 (Fragment) | RGS7 | Q5T3H5 | 1 |
| Regulator of microtubule dynamics protein 1 (Fragment) | RMDN1 | H0YAP5 | 1 |
| Regulator of microtubule dynamics protein 2 (RMD-2) (hRMD-2) (Protein FAM82A1) | RMDN2 FAM82A FAM82A1 BLOCK18 UNQ9371/PRO34163 | Q96LZ7 | 1 |
| Regulator of microtubule dynamics protein 3 (Fragment) | RMDN3 | H0YLG5 | 1 |
| Regulator of telomere elongation helicase 1 (EC 3.6.4.12) | RTEL1-TNFRSF6B RTEL1 | D6RA96 | 1 |
| Regulator of telomere elongation helicase 1 (EC 3.6.4.12) (Novel helicase-like) | RTEL1 C20orf41 KIAA1088 NHL | Q9NZ71 | 1 |
| Regulatory myosin light chain long version | 0 | Q71U02 | 1 |
| Regulatory-associated protein of mTOR (Fragment) | RPTOR | I3L436 | 1 |
| RelA-associated inhibitor (Fragment) | PPP1R13L | K7ENG6 | 1 |
| Relaxin receptor 2 (G-protein coupled receptor 106) (G-protein coupled receptor affecting testicular descent) (Leucine-rich repeat-containing G-protein coupled receptor 8) (Relaxin family peptide receptor 2) | RXFP2 GPR106 GREAT LGR8 | Q8WXD0 | 1 |
| Relaxin-3 receptor 2 (RLN3 receptor 2) (G-protein coupled receptor 100) (G-protein coupled receptor GPCR142) (Insulin-like peptide INSL5 receptor) (Relaxin family peptide receptor 4) | RXFP4 GPR100 RLN3R2 | Q8TDU9 | 1 |
| RELT-like protein 1 (Fragment) | RELL1 | D6RBN9 | 1 |
| RELT-like protein 2 | RELL2 C5orf16 UNQ9423/PRO34565 | Q8NC24 | 1 |
| Remodeling and spacing factor 1 (Fragment) | RSF1 | H7C306 | 1 |
| Replication factor C 5 isoform 1 variant (Fragment) | 0 | Q59GW7 | 1 |
| Replication factor C subunit 2 | RFC2 | A0A087WVY3 | 1 |
| Replication factor C subunit 2 (Fragment) | RFC2 | H7C5P4 | 1 |
| Replication factor C subunit 2 (Fragment) | RFC2 | H7C5A0 | 1 |
| Replication factor C subunit 2 (Fragment) | RFC2 | H7C596 | 1 |
| Replication factor C subunit 4 (Fragment) | RFC4 | C9J8M3 | 1 |
| Replication protein A 32 kDa subunit (Fragment) | RPA2 | Q5TEJ0 | 1 |
| Replication protein A 70 kDa DNA-binding subunit (Fragment) | RPA1 | I3L4R8 | 1 |
| Reprimo-like protein | RPRML | Q8N4K4 | 1 |
| Repulsive guidance molecule A | RGMA | A0A0A0MTQ4 | 1 |
| Repulsive guidance molecule A (RGM domain family member A) | RGMA RGM | Q96B86 | 1 |
| RER1 protein | RER1 | Q6IBJ7 | 1 |
| Ret finger protein-like 2 (RING finger protein 79) | RFPL2 RNF79 | O75678 | 1 |
| Retbindin | RTBDN | Q9BSG5 | 1 |
| Reticulon | 0 | B7Z8W8 | 1 |
| Reticulon | 0 | B7Z3E3 | 1 |
| Reticulon (Fragment) | RTN4 | H7C106 | 1 |
| Reticulon-4 (Foocen) (Neurite outgrowth inhibitor) (Nogo protein) (Neuroendocrine-specific protein) (NSP) (Neuroendocrine-specific protein C homolog) (RTN-x) (Reticulon-5) | RTN4 KIAA0886 NOGO My043 SP1507 | Q7L7Q5 | 1 |
| Reticulophagy regulator 3 | RETREG3 | K7ENZ6 | 1 |
| Retinal dehydrogenase 2 | ALDH1A2 | H0YMG7 | 1 |
| Retinal guanylyl cyclase 1 (RETGC-1) (EC 4.6.1.2) (Guanylate cyclase 2D, retinal) (Rod outer segment membrane guanylate cyclase) (ROS-GC) | GUCY2D CORD6 GUC1A4 GUC2D RETGC RETGC1 | Q02846 | 1 |
| Retinal guanylyl cyclase 2 (RETGC-2) (EC 4.6.1.2) (Guanylate cyclase 2F, retinal) (Guanylate cyclase F) (GC-F) (Rod outer segment membrane guanylate cyclase 2) (ROS-GC2) | GUCY2F GUC2F RETGC2 | P51841 | 1 |
| Retinal rod rhodopsin-sensitive cGMP 3',5'-cyclic phosphodiesterase subunit gamma (GMP-PDE gamma) (EC 3.1.4.35) | PDE6G PDEG | P18545 | 1 |
| Retinitis pigmentosa 1-like 1 protein | RP1L1 | A6NKC6 | 1 |
| Retinoblastoma-like protein 1 (107 kDa retinoblastoma-associated protein) (p107) (pRb1) | RBL1 | P28749 | 1 |
| Retinoic acid early transcript 1G protein (UL-16 binding protein 5) (ULBP5) | RAET1G | Q6H3X3 | 1 |
| Retinoic acid receptor alpha (RAR-alpha) (Nuclear receptor subfamily 1 group B member 1) | RARA NR1B1 | P10276 | 1 |
| Retinoic acid receptor RXR-alpha (Nuclear receptor subfamily 2 group B member 1) (Retinoid X receptor alpha) | RXRA NR2B1 | P19793 | 1 |
| Retinoid-binding protein 7 (Retinol binding protein 7, cellular, isoform CRA_a) | RBP7 hCG_1820860 | B1AQ60 | 1 |
| Retinol binding protein 1, cellular (Retinol-binding protein 1) | RBP1 hCG_16055 | A0A0A0MQT0 | 1 |
| Retinol dehydrogenase 11 (Fragment) | RDH11 | G3V2G6 | 1 |
| Retinol dehydrogenase 12 (EC 1.1.1.-) (All-trans and 9-cis retinol dehydrogenase) (Short chain dehydrogenase/reductase family 7C member 2) | RDH12 SDR7C2 | Q96NR8 | 1 |
| Retinol-binding protein 1 | RBP1 | A0A0A0MTB9 | 1 |
| Retinol-binding protein 4 (Plasma retinol-binding protein) (PRBP) (RBP) [Cleaved into: Plasma retinol-binding protein(1-182); Plasma retinol-binding protein(1-181); Plasma retinol-binding protein(1-179); Plasma retinol-binding protein(1-176)] | RBP4 PRO2222 | Q5VY24 | 1 |
| RFC5 protein (Fragment) | RFC5 | Q6LES9 | 1 |
| RGR protein (RPE-retinal G protein-coupled receptor) (Retinal G protein coupled receptor, isoform CRA_b) | RGR hCG_20085 | Q96HT6 | 1 |
| Rheumatoid factor light chain variable region (Fragment) | 0 | A2NW98 | 1 |
| Rheumatoid factor RF-ET13 (Fragment) | 0 | O43234 | 1 |
| Rheumatoid factor RF-ET6 (Fragment) | 0 | A2J1N5 | 1 |
| Rheumatoid factor RF-IP14 (Fragment) | 0 | A2J1N0 | 1 |
| Rheumatoid factor RF-IP18 (Fragment) | 0 | A2J1N2 | 1 |
| Rho GDP-dissociation inhibitor 1 | ARHGDIA | J3KRE2 | 1 |
| Rho GDP-dissociation inhibitor 1 (Rho GDI 1) (Rho-GDI alpha) | ARHGDIA GDIA1 | A8MXW0 | 1 |
| Rho GDP-dissociation inhibitor 1 (Rho GDI 1) (Rho-GDI alpha) | ARHGDIA GDIA1 | B4DUV9 | 1 |
| Rho GTPase-activating protein 1 (Fragment) | ARHGAP1 | H0YE29 | 1 |
| Rho GTPase-activating protein 1 (Fragment) | ARHGAP1 | E9PNR6 | 1 |
| Rho GTPase-activating protein 11A (Rho-type GTPase-activating protein 11A) | ARHGAP11A KIAA0013 | Q6P4F7 | 1 |
| Rho GTPase-activating protein 17 | ARHGAP17 | I3L1S9 | 1 |
| Rho GTPase-activating protein 24 (Filamin-A-associated RhoGAP) (FilGAP) (RAC1- and CDC42-specific GTPase-activating protein of 72 kDa) (RC-GAP72) (Rho-type GTPase-activating protein 24) (RhoGAP of 73 kDa) (Sarcoma antigen NY-SAR-88) (p73RhoGAP) | ARHGAP24 FILGAP | Q8N264 | 1 |
| Rho GTPase-activating protein 25 | ARHGAP25 | C9JB56 | 1 |
| Rho GTPase-activating protein 26 (Fragment) | ARHGAP26 | F8W8N5 | 1 |
| Rho GTPase-activating protein 26 (Fragment) | ARHGAP26 | H7BZE1 | 1 |
| Rho GTPase-activating protein 26 (Fragment) | ARHGAP26 | H7C205 | 1 |
| Rho GTPase-activating protein 27 | ARHGAP27 | A0A0C4DGE6 | 1 |
| Rho GTPase-activating protein 32 (Rho GTPase-activating protein, isoform CRA_b) | ARHGAP32 RICS hCG_2042955 | G3V174 | 1 |
| Rho GTPase-activating protein 40 (Fragment) | ARHGAP40 | H0Y397 | 1 |
| Rho GTPase-activating protein 40 (Rho-type GTPase-activating protein 40) | ARHGAP40 C20orf95 | Q5TG30 | 1 |
| Rho GTPase-activating protein 44 | ARHGAP44 | F5H6L3 | 1 |
| Rho GTPase-activating protein SYDE1 (Fragment) | SYDE1 | M0R101 | 1 |
| Rho GTPase-activating protein SYDE1 (Synapse defective protein 1 homolog 1) (Protein syd-1 homolog 1) | SYDE1 | Q6ZW31 | 1 |
| Rho guanine nucleotide exchange factor 1 (115 kDa guanine nucleotide exchange factor) (p115-RhoGEF) (p115RhoGEF) (Sub1.5) | ARHGEF1 | Q6NX52 | 1 |
| Rho guanine nucleotide exchange factor 1 (Fragment) | ARHGEF1 | M0QXV6 | 1 |
| Rho guanine nucleotide exchange factor 10-like protein | ARHGEF10L | Q5VXI4 | 1 |
| Rho guanine nucleotide exchange factor 15 (Ephexin-5) (E5) (Vsm-RhoGEF) | ARHGEF15 KIAA0915 | O94989 | 1 |
| Rho guanine nucleotide exchange factor 2 (Fragment) | ARHGEF2 | V9GZ14 | 1 |
| Rho guanine nucleotide exchange factor 3 (Exchange factor found in platelets and leukemic and neuronal tissues) (XPLN) | ARHGEF3 | Q9NR81 | 1 |
| Rho guanine nucleotide exchange factor 33 | ARHGEF33 | A8MVX0 | 1 |
| Rho-related GTP-binding protein RhoF (Fragment) | RHOF | F5GXB1 | 1 |