| Selenide, water dikinase 2 (EC 2.7.9.3) (Selenium donor protein 2) (Selenophosphate synthase 2) | Sephs2 Sps2 | P97364 | 3 |
| Semaphorin-3B | Sema3b | M9MMK0 | 3 |
| Semaphorin-3B (Semaphorin-A) (Sema A) | Sema3b Sema Semaa | Q62177 | 3 |
| Semaphorin-3C (Semaphorin-E) (Sema E) | Sema3c Semae SemE | Q62181 | 3 |
| Semaphorin-3D | Sema3d | Q8BH34 | 3 |
| Semaphorin-3E (Semaphorin-H) (Sema H) | Sema3e Semah Semh | P70275 | 3 |
| Semaphorin-6D | Sema6d Kiaa1479 | Q76KF0 | 3 |
| Separin (EC 3.4.22.49) (Caspase-like protein ESPL1) (Extra spindle poles-like 1 protein) (Separase) | Espl1 Esp1 Kiaa0165 | P60330 | 3 |
| Sepiapterin reductase | Spr | G3UXX3 | 3 |
| Septin-8 | Sept8 | B1AQZ0 | 3 |
| Serine peptidase inhibitor, Kazal type 5 | Spink5 | Q148R4 | 3 |
| Serine-protein kinase ATM (EC 2.7.11.1) (Ataxia telangiectasia mutated homolog) (A-T mutated homolog) | Atm | Q62388 | 3 |
| Serine/threonine-protein kinase 38-like (EC 2.7.11.1) (NDR2 protein kinase) (Nuclear Dbf2-related kinase 2) | Stk38l Ndr2 | Q7TSE6 | 3 |
| Serine/threonine-protein kinase ATR (EC 2.7.11.1) (Ataxia telangiectasia and Rad3-related protein) | Atr Kiaa4069 | Q9JKK8 | 3 |
| Serine/threonine-protein kinase B-raf (Fragment) | Braf | F6SZ47 | 3 |
| Serine/threonine-protein kinase LMTK2 (EC 2.7.11.1) (Brain-enriched kinase) (Lemur tyrosine kinase 2) | Lmtk2 Brek Kiaa1079 | Q3TYD6 | 3 |
| Serine/threonine-protein kinase MRCK alpha | Cdc42bpa | H7BX44 | 3 |
| Serine/threonine-protein kinase MRCK alpha (EC 2.7.11.1) (CDC42-binding protein kinase alpha) | Cdc42bpa Kiaa0451 | Q3UU96 | 3 |
| Serine/threonine-protein kinase Nek7 (EC 2.7.11.1) (Never in mitosis A-related kinase 7) (NimA-related protein kinase 7) | Nek7 | Q9ES74 | 3 |
| Serine/threonine-protein phosphatase (EC 3.1.3.16) (Fragment) | Ppp5c | F7BX26 | 3 |
| Serine/threonine-protein phosphatase 2A 65 kDa regulatory subunit A beta isoform | Ppp2r1b | H3BLQ0 | 3 |
| Serine/threonine-protein phosphatase 4 regulatory subunit 2 | Ppp4r2 | Q0VGB7 | 3 |
| Serine/threonine-protein phosphatase 4 regulatory subunit 3A | Ppp4r3a Smek1 | E9Q481 | 3 |
| Serine/threonine-protein phosphatase 4 regulatory subunit 3A (SMEK homolog 1) | Ppp4r3a Kiaa2010 Pp4r3a Smek1 | Q6P2K6 | 3 |
| Serine/threonine-protein phosphatase 6 regulatory ankyrin repeat subunit A (PP6-ARS-A) (Serine/threonine-protein phosphatase 6 regulatory subunit ARS-A) (Ankyrin repeat domain-containing protein 28) (Phosphatase interactor targeting protein hnRNP K) (PITK) | Ankrd28 | Q505D1 | 3 |
| Serpin B5 (Maspin) (Peptidase inhibitor 5) (PI-5) | Serpinb5 Pi5 Spi5 Spi7 | P70124 | 3 |
| Serum paraoxonase/arylesterase 2 (PON 2) (EC 3.1.1.2) (EC 3.1.1.81) (Aromatic esterase 2) (A-esterase 2) (Serum aryldialkylphosphatase 2) | Pon2 | Q62086 | 3 |
| SH3 domain-containing protein 21 | Sh3d21 | Q7TSG5 | 3 |
| Shootin-1 (Shootin1) | Shtn1 Kiaa1598 | Q8K2Q9 | 3 |
| SID1 transmembrane family member 2 | Sidt2 | Q8CIF6 | 3 |
| Sigma non-opioid intracellular receptor 1 (Sigma 1-type opioid receptor) (Sigma1-receptor) (Sigma1R) | Sigmar1 Oprs1 | O55242 | 3 |
| Signal peptidase complex catalytic subunit SEC11C (EC 3.4.21.89) (Microsomal signal peptidase 21 kDa subunit) (SPase 21 kDa subunit) (SEC11 homolog C) (SEC11-like protein 3) (SPC21) | Sec11c Sec11l3 Spc21 | Q9D8V7 | 3 |
| Signal peptidase complex subunit 2 (EC 3.4.-.-) (Microsomal signal peptidase 25 kDa subunit) (SPase 25 kDa subunit) | Spcs2 Spc25 | Q9CYN2 | 3 |
| Signal peptidase complex subunit 3 (EC 3.4.-.-) (Microsomal signal peptidase 22/23 kDa subunit) (SPC22/23) (SPase 22/23 kDa subunit) | Spcs3 | Q6ZWQ7 | 3 |
| Signal recognition particle subunit SRP72 | Srp72 | F8VQC1 | 3 |
| Signal transducer and activator of transcription 5B | Stat5b | P42232 | 3 |
| Slit homolog 3 protein (Slit-3) (Slit3) | Slit3 | Q9WVB4 | 3 |
| Small ubiquitin-related modifier 3 (Fragment) | Sumo3 | G3UZX6 | 3 |
| Sn1-specific diacylglycerol lipase alpha (DGL-alpha) (EC 3.1.1.-) (Neural stem cell-derived dendrite regulator) | Dagla Kiaa0659 Nsddr | Q6WQJ1 | 3 |
| SNARE-associated protein Snapin (Biogenesis of lysosome-related organelles complex 1 subunit 7) (BLOC-1 subunit 7) (Synaptosomal-associated protein 25-binding protein) (SNAP-associated protein) | Snapin Bloc1s7 Snap25bp Snapap | Q9Z266 | 3 |
| Sodium- and chloride-dependent GABA transporter 1 (GAT-1) (Solute carrier family 6 member 1) | Slc6a1 Gabt1 Gat-1 Gat1 | P31648 | 3 |
| Sodium- and chloride-dependent neutral and basic amino acid transporter B(0+) (Amino acid transporter ATB0+) (Colonic system B0+ amino acid transporter CATB0+) (Solute carrier family 6 member 14) | Slc6a14 | Q9JMA9 | 3 |
| Sodium-coupled neutral amino acid transporter 3 (N-system amino acid transporter 1) (Na(+)-coupled neutral amino acid transporter 3) (Solute carrier family 38 member 3) (mNAT) (System N amino acid transporter 1) | Slc38a3 Sn1 Snat3 | Q9DCP2 | 3 |
| Sodium-dependent phosphate transport protein 2B (Sodium-phosphate transport protein 2B) (Na(+)-dependent phosphate cotransporter 2B) (Sodium/phosphate cotransporter 2B) (Na(+)/Pi cotransporter 2B) (NaPi-2b) (Solute carrier family 34 member 2) | Slc34a2 Npt2b | Q9DBP0 | 3 |
| Sodium/potassium-transporting ATPase subunit alpha (EC 3.6.3.-) | Atp1a2 | D3YYN7 | 3 |
| Solute carrier family 12 member 6 (Electroneutral potassium-chloride cotransporter 3) (K-Cl cotransporter 3) | Slc12a6 Kcc3 | Q924N4 | 3 |
| Solute carrier family 15 member 3 (Peptide transporter 3) (Peptide/histidine transporter 2) (cAMP-inducible gene 1 protein) | Slc15a3 Ci1 Pht2 | Q8BPX9 | 3 |
| Solute carrier family 45 member 4 | Slc45a4 Kiaa1126 | Q0P5V9 | 3 |
| Solute carrier family 52, riboflavin transporter, member 2 (Porcine endogenous retrovirus A receptor 2 homolog) (PERV-A receptor 2 homolog) (Protein GPR172B) (Riboflavin transporter 1) (mRFT1) | Slc52a2 Gpr172b Rft1 | Q9D8F3 | 3 |
| Something about silencing protein 10 (Charged amino acid-rich leucine zipper 1) (Crl-1) (Disrupter of silencing SAS10) (UTP3 homolog) | Utp3 Crl1 Crlz1 Sas10 | Q9JI13 | 3 |
| Son of sevenless homolog 1 (SOS-1) (mSOS-1) | Sos1 | Q62245 | 3 |
| SPARC | Sparc | Q5NCU4 | 3 |
| Spectrin alpha chain, non-erythrocytic 1 | Sptan1 Spna2 | A3KGU7 | 3 |
| Spectrin alpha chain, non-erythrocytic 1 | Sptan1 Spna2 | A3KGU9 | 3 |
| Spermatid perinuclear RNA-binding protein | Strbp Spnr | Q91WM1 | 3 |
| Spermatogenesis-associated protein 5 | Spata5 | A0A0A0MQ80 | 3 |
| Sphingosine 1-phosphate receptor 2 (S1P receptor 2) (S1P2) (Endothelial differentiation G-protein coupled receptor 5) (Lysophospholipid receptor B2) (Sphingosine 1-phosphate receptor Edg-5) (S1P receptor Edg-5) | S1pr2 Edg5 Gpcr13 Lpb2 | P52592 | 3 |
| Splicing factor U2AF 26 kDa subunit (U2 auxiliary factor 26) (U2 small nuclear RNA auxiliary factor 1-like protein 4) (U2AF1-like 4) | U2af1l4 U2af26 | Q8BGJ9 | 3 |
| Splicing regulatory glutamine/lysine-rich protein 1 (Serine/arginine-rich-splicing regulatory protein 86) (SRrp86) (Splicing factor, arginine/serine-rich 12) | Srek1 Sfrs12 Srrp86 | Q8BZX4 | 3 |
| Sprouty-related, EVH1 domain-containing protein 2 (Spred-2) | Spred2 | Q924S7 | 3 |
| SPRY domain-containing protein 7 (Chronic lymphocytic leukemia deletion region gene 6 protein homolog) (CLL deletion region gene 6 protein homolog) | Spryd7 Clld6 | Q3TFQ1 | 3 |
| SRSF protein kinase 2 (Serine/arginine-rich protein specific kinase 2, isoform CRA_a) | Srpk2 mCG_4527 | A0A0R4J124 | 3 |
| Striated muscle-specific serine/threonine-protein kinase (EC 2.7.11.1) (Aortic preferentially expressed protein 1) (APEG-1) | Speg Apeg1 Kiaa1297 | Q62407 | 3 |
| Stromal cell-derived factor 1 (SDF-1) (12-O-tetradecanoylphorbol 13-acetate repressed protein 1) (TPAR1) (C-X-C motif chemokine 12) (Pre-B cell growth-stimulating factor) (PBSF) (Thymic lymphoma cell-stimulating factor) (TLSF) | Cxcl12 Sdf1 | P40224 | 3 |
| Succinate--CoA ligase [ADP-forming] subunit beta, mitochondrial (EC 6.2.1.5) (ATP-specific succinyl-CoA synthetase subunit beta) (A-SCS) (Succinyl-CoA synthetase beta-A chain) (SCS-betaA) | Sucla2 | Q9Z2I9 | 3 |
| Succinyl-CoA:3-ketoacid-coenzyme A transferase (EC 2.8.3.5) | Oxct1 | Q3UJQ9 | 3 |
| SUMO-conjugating enzyme UBC9 (EC 2.3.2.-) (RING-type E3 SUMO transferase UBC9) (SUMO-protein ligase) (Ubiquitin carrier protein 9) (mUBC9) (Ubiquitin carrier protein I) (Ubiquitin-conjugating enzyme E2 I) (Ubiquitin-protein ligase I) | Ube2i Ubc9 Ubce2i Ubce9 | P63280 | 3 |
| Suppression of tumorigenicity 5 protein (DENN domain-containing protein 2B) | St5 Dennd2b | Q924W7 | 3 |
| Survival motor neuron protein | Smn1 Smn | P97801 | 3 |
| SWI/SNF-related matrix-associated actin-dependent regulator of chromatin subfamily D member 1 (60 kDa BRG-1/Brm-associated factor subunit A) (BRG1-associated factor 60A) (BAF60A) (Protein D15KZ1) (SWI/SNF complex 60 kDa subunit) | Smarcd1 Baf60a D15Kz1 | Q61466 | 3 |
| Synaptojanin-2 (EC 3.1.3.36) (Synaptic inositol 1,4,5-trisphosphate 5-phosphatase 2) | Synj2 Kiaa0348 | Q9D2G5 | 3 |
| Synaptosomal-associated protein 47 (SNAP-47) (Synaptosomal-associated 47 kDa protein) | Snap47 | Q8R570 | 3 |
| Syntaxin-16 | Stx16 | Q8BVI5 | 3 |
| Syntaxin-17 | Stx17 | Q9D0I4 | 3 |
| Syntaxin-2 (Epimorphin) | Stx2 Epim | Q00262 | 3 |
| Syntenin-2 (Syndecan-binding protein 2) | Sdcbp2 | Q99JZ0 | 3 |
| T-lymphocyte surface antigen Ly-9 (Cell surface molecule Ly-9) (Lymphocyte antigen 9) (SLAM family member 3) (SLAMF3) (Signaling lymphocytic activation molecule 3) (CD antigen CD229) | Ly9 Ly-9 | Q01965 | 3 |
| Taperin | Tprn | A2AI08 | 3 |
| TBC1 domain family member 10A | Tbc1d10a | Q5SPX8 | 3 |
| TBC1 domain family member 5 | Tbc1d5 | Q80XQ2 | 3 |
| Terminal uridylyltransferase 7 | Zcchc6 | E9PUA2 | 3 |
| Terminal uridylyltransferase 7 (TUTase 7) (EC 2.7.7.52) (Zinc finger CCHC domain-containing protein 6) | Zcchc6 Kiaa1711 Tut7 | Q5BLK4 | 3 |
| Testin (TES1/TES2) | Tes | P47226 | 3 |
| Testis-expressed protein 30 | Tex30 | Q3TUU5 | 3 |
| Tetraspanin | Tspan10 mCG_2164 | Q3UGA5 | 3 |
| Tetraspanin | Tspan5 | D3Z641 | 3 |
| Tetratricopeptide repeat domain 37 | Ttc37 | F8VPK0 | 3 |
| Tetratricopeptide repeat protein 1 | Ttc1 | A2AJK8 | 3 |
| Tetratricopeptide repeat protein 1 (TPR repeat protein 1) | Ttc1 | Q91Z38 | 3 |
| Tetratricopeptide repeat protein 21B | Ttc21b | E9PVK4 | 3 |
| Tetratricopeptide repeat protein 5 (TPR repeat protein 5) (Stress-responsive activator of p300) | Ttc5 Strap | Q99LG4 | 3 |
| Tetratricopeptide repeat protein 7A (TPR repeat protein 7A) | Ttc7a Ttc7 | Q8BGB2 | 3 |
| TGF-beta receptor type-1 (TGFR-1) (EC 2.7.11.30) (ESK2) (Transforming growth factor-beta receptor type I) (TGF-beta receptor type I) (TbetaR-I) | Tgfbr1 | Q64729 | 3 |
| Thioredoxin reductase 2, mitochondrial (EC 1.8.1.9) (Thioredoxin reductase TR3) | Txnrd2 Trxr2 | Q9JLT4 | 3 |
| Thioredoxin-related transmembrane protein 2 (Thioredoxin domain-containing protein 14) | Tmx2 Txndc14 | Q9D710 | 3 |
| Three-prime repair exonuclease 1 (EC 3.1.11.2) (3'-5' exonuclease TREX1) | Trex1 | Q91XB0 | 3 |
| Thrombospondin type-1 domain-containing protein 7A | Thsd7a | E9QNR5 | 3 |
| Tissue factor (TF) | F3 mCG_4679 | A0A0R4J088 | 3 |
| Torsin-1B (Torsin ATPase-1B) (EC 3.6.4.-) (Torsin family 1 member B) | Tor1b | Q9ER41 | 3 |
| Torsin-3A (ATP-dependent interferon-responsive protein) (Torsin family 3 member A) | Tor3a Adir | Q9ER38 | 3 |