| Small subunit processome component 20 homolog (Down-regulated in metastasis protein) | Utp20 Drim | Q5XG71 | 4 |
| Sodium-dependent phosphate transporter 2 (Phosphate transporter 2) (PiT-2) (Solute carrier family 20 member 2) (Type III sodium-dependent phosphate transporter) | Slc20a2 Pit2 | Q80UP8 | 4 |
| Sodium/potassium-transporting ATPase subunit alpha (EC 3.6.3.-) | Atp4a | Q91WH7 | 4 |
| Sodium/potassium/calcium exchanger 5 (Na(+)/K(+)/Ca(2+)-exchange protein 5) (Solute carrier family 24 member 5) | Slc24a5 Nckx5 | Q8C261 | 4 |
| Soluble calcium-activated nucleotidase 1 (SCAN-1) (EC 3.6.1.6) (Apyrase homolog) | Cant1 | Q8VCF1 | 4 |
| Solute carrier family 2, facilitated glucose transporter member 4 (GT2) (Glucose transporter type 4, insulin-responsive) (GLUT-4) | Slc2a4 Glut-4 Glut4 | P14142 | 4 |
| Solute carrier family 35 member F1 | Slc35f1 | Q8BGK5 | 4 |
| Sorbin and SH3 domain-containing protein 1 | Sorbs1 | E9Q6A3 | 4 |
| Sorting nexin-12 (SDP8 protein) | Snx12 | O70493 | 4 |
| Sorting nexin-8 | Snx8 | Q8CFD4 | 4 |
| Spartin | Spg20 Kiaa0610 | Q8R1X6 | 4 |
| Spectrin alpha chain, erythrocytic 1 (Erythroid alpha-spectrin) | Spta1 Spna1 Spta | P08032 | 4 |
| Spectrin beta chain | Sptbn2 Spnb3 mCG_8401 | Q68FG2 | 4 |
| Spectrin beta chain | Sptb Spnb1 | E9Q397 | 4 |
| Spermatogenesis-associated serine-rich protein 2 (Serine-rich spermatocytes and round spermatid 59 kDa protein) (p59scr) | Spats2 Scr59 | Q8K1N4 | 4 |
| Spermatogenesis-defective protein 39 homolog (hSPE-39) (VPS33B-interacting protein in apical-basolateral polarity regulator) (VPS33B-interacting protein in polarity and apical restriction) | Vipas39 Spe39 Vipar | Q8BGQ1 | 4 |
| Splicing factor 3A subunit 2 (SF3a66) (Spliceosome-associated protein 62) (SAP 62) | Sf3a2 Sap62 | Q62203 | 4 |
| Splicing factor 45 (45 kDa-splicing factor) (RNA-binding motif protein 17) | Rbm17 Spf45 | Q8JZX4 | 4 |
| Stathmin (Leukemia-associated gene protein) (Leukemia-associated phosphoprotein p18) (Metablastin) (Oncoprotein 18) (Op18) (Phosphoprotein p19) (pp19) (Prosolin) (Protein Pr22) (pp17) | Stmn1 Lag Lap18 Pr22 | P54227 | 4 |
| Striatin-3 (Strn3 protein) | Strn3 | B2RQS1 | 4 |
| Structural maintenance of chromosomes protein | Smc4 | E9Q2X6 | 4 |
| Succinate--CoA ligase [ADP/GDP-forming] subunit alpha, mitochondrial (EC 6.2.1.4) (EC 6.2.1.5) (Succinyl-CoA synthetase subunit alpha) (SCS-alpha) | Suclg1 | Q9WUM5 | 4 |
| Suppressor of SWI4 1 homolog (Ssf-1) (Peter Pan homolog) | Ppan Ssf1 | Q91YU8 | 4 |
| Suppressor of tumorigenicity 14 protein homolog (EC 3.4.21.109) (Epithin) (Serine protease 14) | St14 Prss14 | P56677 | 4 |
| Suppressor of Ty 16 (Suppressor of Ty 16 homolog (S. cerevisiae)) | Supt16 Supt16h mCG_18713 | G3X956 | 4 |
| Surfeit locus protein 6 | Surf6 Surf-6 | P70279 | 4 |
| SWI/SNF-related matrix-associated actin-dependent regulator of chromatin subfamily D member 2 (60 kDa BRG-1/Brm-associated factor subunit B) (BRG1-associated factor 60B) (BAF60B) | Smarcd2 Baf60b | Q99JR8 | 4 |
| Symplekin | Sympk | Q80X82 | 4 |
| Synaptic functional regulator FMR1 | Fmr1 | E9QAS9 | 4 |
| Synaptosomal-associated protein | Snap23 | Q9D3L3 | 4 |
| Syndetin (Bcl2-like protein blm) (Coiled-coil domain-containing protein 132) (EARP/GARPII complex subunit VPS50) | Vps50 Ccdc132 Kiaa1861 | Q8CI71 | 4 |
| Synembryn-A (Protein Ric-8A) | Ric8a Ric8 | Q3TIR3 | 4 |
| T-complex protein 1 subunit gamma | Cct3 | E9Q133 | 4 |
| Talin-2 | Tln2 | E9PUM4 | 4 |
| Target of EGR1 protein 1 | Toe1 | Q9D2E2 | 4 |
| TATA-box-binding protein-associated factor 15 (Fragment) | Taf15 | F6QCI0 | 4 |
| Telomere-associated protein RIF1 (Rap1-interacting factor 1 homolog) (mRif1) | Rif1 | Q6PR54 | 4 |
| Tetraspanin | Tspan7 | Q3UHG5 | 4 |
| Tetraspanin-31 (Tspan-31) (Sarcoma-amplified sequence homolog) | Tspan31 Sas | Q9CQ88 | 4 |
| Tetratricopeptide repeat protein 27 (TPR repeat protein 27) | Ttc27 | Q8CD92 | 4 |
| Thioredoxin domain-containing protein 12 (EC 1.8.4.2) (Endoplasmic reticulum resident protein 19) (ER protein 19) (ERp19) (Thioredoxin-like protein p19) | Txndc12 Tlp19 | Q9CQU0 | 4 |
| Thioredoxin-interacting protein (Vitamin D3 up-regulated protein 1) | Txnip Vdup1 | Q8BG60 | 4 |
| Thioredoxin-related transmembrane protein 1 (Fragment) | Tmx1 | F6V084 | 4 |
| THO complex subunit 1 (Tho1) (Nuclear matrix protein p84) | Thoc1 Hpr1 | Q8R3N6 | 4 |
| Thrombospondin type-1 domain-containing protein 7A | Thsd7a Gm837 Kiaa0960 | Q69ZU6 | 4 |
| THUMP domain-containing protein 1 | Thumpd1 | Q99J36 | 4 |
| Thymosin beta-4 (T beta 4) [Cleaved into: Hematopoietic system regulatory peptide (Seraspenide)] | Tmsb4x Ptmb4 Tmsb4 | P20065 | 4 |
| Tissue factor pathway inhibitor (TFPI) (Extrinsic pathway inhibitor) (EPI) (Lipoprotein-associated coagulation inhibitor) (LACI) | Tfpi | O54819 | 4 |
| Titin | Ttn | E9Q8N1 | 4 |
| Toll-like receptor 4 (CD antigen CD284) | Tlr4 Lps | Q9QUK6 | 4 |
| TOM1-like protein 2 | Tom1l2 | Q5SXA5 | 4 |
| TRAF2 and NCK interacting kinase (Traf2 and NCK-interacting protein kinase) | Tnik | B9EKN8 | 4 |
| Trafficking protein particle complex subunit 12 (Tetratricopeptide repeat protein 15) (TPR repeat protein 15) | Trappc12 Ttc15 | Q8K2L8 | 4 |
| Transcriptional coactivator YAP1 (Yes-associated protein 1) (Protein yorkie homolog) (Yes-associated protein YAP65 homolog) | Yap1 Yap Yap65 | P46938 | 4 |
| Transcriptional repressor p66-beta (GATA zinc finger domain-containing protein 2B) (p66/p68) | Gatad2b | Q8VHR5 | 4 |
| Transformation/transcription domain-associated protein (Tra1 homolog) | Trrap | Q80YV3 | 4 |
| Transformer-2 protein homolog alpha | Tra2a | E9QP00 | 4 |
| Transforming growth factor beta-1 (TGF-beta-1) [Cleaved into: Latency-associated peptide (LAP)] | Tgfb1 | P04202 | 4 |
| Transmembrane channel-like protein | Tmc6 mCG_19294 | B1ATB3 | 4 |
| Transmembrane emp24 domain-containing protein 4 (Fragment) | Tmed4 | Q5SVW9 | 4 |
| Transmembrane p24-trafficking protein 7 | Tmed7 | D3YZZ5 | 4 |
| Transmembrane protease serine 11B-like protein (EC 3.4.21.-) (Airway trypsin-like protease 5) (Transmembrane protease serine 11B) | Tmprss11b Hatl5 Tmprss11bnl | Q14C59 | 4 |
| Transmembrane protein 104 | Tmem104 | A2A6S1 | 4 |
| Transmembrane protein 106B (Fragment) | Tmem106b | D3Z191 | 4 |
| Transmembrane protein 109 (Mitsugumin-23) (Mg23) | Tmem109 | Q3UBX0 | 4 |
| Transmembrane protein 132A (HSPA5-binding protein 1) | Tmem132a Kiaa1583 | Q922P8 | 4 |
| Transmembrane protein 14C | Tmem14c | Q9CQN6 | 4 |
| Transmembrane protein 192 | Tmem192 | Q9CXT7 | 4 |
| Transmembrane protein 198b | Tmem198b 1110012D08Rik mCG_18665 | Q8CFU0 | 4 |
| Transmembrane protein 79 (Mattrin) | Tmem79 Matt | Q9D709 | 4 |
| Transmembrane protein 9 | Tmem9 | Q9CR23 | 4 |
| Transmembrane protein C16orf54 homolog | 0 | Q8C708 | 4 |
| Transporter | Slc6a8 | E9Q151 | 4 |
| Transportin-2 | Tnpo2 | E9PV58 | 4 |
| Transportin-2 (Karyopherin beta-2b) | Tnpo2 | Q99LG2 | 4 |
| Tricarboxylate transport protein, mitochondrial (Citrate transport protein) (CTP) (Solute carrier family 25 member 1) (Tricarboxylate carrier protein) | Slc25a1 | Q8JZU2 | 4 |
| tRNA (adenine(58)-N(1))-methyltransferase non-catalytic subunit TRM6 (tRNA(m1A58)-methyltransferase subunit TRM6) (tRNA(m1A58)MTase subunit TRM6) | Trmt6 Kiaa1153 Trm6 | Q8CE96 | 4 |
| tRNA (uracil-5-)-methyltransferase homolog A (EC 2.1.1.-) (HpaII tiny fragments locus 9c protein) | Trmt2a Htf9-c Htf9c | Q8BNV1 | 4 |
| tRNA-dihydrouridine(47) synthase [NAD(P)(+)]-like (EC 1.3.1.-) (tRNA-dihydrouridine synthase 3-like) | Dus3l | Q91XI1 | 4 |
| Tropomodulin-2 (Neuronal tropomodulin) (N-Tmod) | Tmod2 | Q9JKK7 | 4 |
| Tropomyosin 1, alpha, isoform CRA_i (Tropomyosin alpha-1 chain) | Tpm1 mCG_1234 | G5E8R0 | 4 |
| Tropomyosin 3, gamma | Tpm3 | Q8K0Z5 | 4 |
| Tropomyosin alpha-3 chain | Tpm3 | E9Q7Q3 | 4 |
| Tubulin polymerization-promoting protein family member 3 | Tppp3 | Q9CRB6 | 4 |
| Tubulin-specific chaperone A (TCP1-chaperonin cofactor A) (Tubulin-folding cofactor A) (CFA) | Tbca | P48428 | 4 |
| Tuftelin-interacting protein 11 (Septin and tuftelin-interacting protein 1) (STIP-1) (Tuftelin-interacting protein 39) | Tfip11 Stip Tip39 | Q9ERA6 | 4 |
| Tumor necrosis factor alpha-induced protein 2 (TNF alpha-induced protein 2) (Primary response gene B94 protein) | Tnfaip2 | Q61333 | 4 |
| Type 1 phosphatidylinositol 4,5-bisphosphate 4-phosphatase | Tmem55b | F8WHW3 | 4 |
| Type II inositol 1,4,5-trisphosphate 5-phosphatase (EC 3.1.3.36) (Inositol polyphosphate-5-phosphatase B) (Phosphoinositide 5-phosphatase) (5PTase) | Inpp5b | Q8K337 | 4 |
| Tyrosinase (EC 1.14.18.1) (Albino locus protein) (Monophenol monooxygenase) | Tyr | P11344 | 4 |
| Tyrosine-protein kinase (EC 2.7.10.2) | Tyk2 | E9QJS1 | 4 |
| Tyrosine-protein phosphatase non-receptor type 2 (Protein-tyrosine phosphatase PTP-2) (EC 3.1.3.48) (MPTP) | Ptpn2 Ptpt | Q06180 | 4 |
| Tyrosine-protein phosphatase non-receptor type 7 (EC 3.1.3.48) (Hematopoietic protein-tyrosine phosphatase) (HEPTP) | Ptpn7 | Q8BUM3 | 4 |
| U1 small nuclear ribonucleoprotein C (U1 snRNP C) (U1-C) (U1C) | Snrpc Snrp1c | Q62241 | 4 |
| U3 small nucleolar ribonucleoprotein protein IMP3 (U3 snoRNP protein IMP3) | Imp3 | Q921Y2 | 4 |
| U6 snRNA-associated Sm-like protein LSm4 | Lsm4 | Q9QXA5 | 4 |
| Ubiquitin carboxyl-terminal hydrolase CYLD (EC 3.4.19.12) (Deubiquitinating enzyme CYLD) (Ubiquitin thioesterase CYLD) (Ubiquitin-specific-processing protease CYLD) | Cyld Cyld1 Kiaa0849 | Q80TQ2 | 4 |
| Ubiquitin conjugation factor E4 B (EC 2.3.2.27) (RING-type E3 ubiquitin transferase E4 B) (Ubiquitin fusion degradation protein 2) | Ube4b Ufd2 Ufd2a | Q9ES00 | 4 |
| Ubiquitin-conjugating enzyme E2 Q1 (EC 2.3.2.23) (E2 ubiquitin-conjugating enzyme Q1) (Galactosyl transferase-associated protein) (GTAP) (Ubiquitin carrier protein Q1) (Ubiquitin-protein ligase Q1) | Ube2q1 Ube2q | Q7TSS2 | 4 |
| Ubiquitin-conjugating enzyme E2 Z (EC 2.3.2.23) (E2 ubiquitin-conjugating enzyme Z) (Uba6-specific E2 conjugating enzyme 1) (Use1) (Ubiquitin carrier protein Z) (Ubiquitin-protein ligase Z) | Ube2z D11Moh35 | Q3UE37 | 4 |