| Transmembrane protein 121 (Protein hole) | Tmem121 | Q80XA0 | 1 |
| Transmembrane protein 125 | Tmem125 | Q8CHQ6 | 1 |
| Transmembrane protein 126A | Tmem126a | Q9D8Y1 | 1 |
| Transmembrane protein 126B | Tmem126b | Q9D1R1 | 1 |
| Transmembrane protein 127 | Tmem127 | Q8BGP5 | 1 |
| Transmembrane protein 129 | Tmem129 | Q8K304 | 1 |
| Transmembrane protein 135 (Peroxisomal membrane protein 52) (PMP52) | Tmem135 | Q9CYV5 | 1 |
| Transmembrane protein 141 | Tmem141 D2Ertd217e | A2AJB2 | 1 |
| Transmembrane protein 147 | Tmem147 | Q9CQG6 | 1 |
| Transmembrane protein 14A | Tmem14a | P56983 | 1 |
| Transmembrane protein 14C | Tmem14c | Q9CQN6 | 1 |
| Transmembrane protein 150A (Transmembrane protein 150) | Tmem150a Tmem150 | Q91WN2 | 1 |
| Transmembrane protein 158 | Tmem158 mCG_140297 | B2RTM1 | 1 |
| Transmembrane protein 168 | Tmem168 | Q91VX9 | 1 |
| Transmembrane protein 170B | Tmem170b | P86050 | 1 |
| Transmembrane protein 175 | Tmem175 | Q9CXY1 | 1 |
| Transmembrane protein 184B | Tmem184b | Q8BG09 | 1 |
| Transmembrane protein 19 | Tmem19 | Q91W52 | 1 |
| Transmembrane protein 191C | Tmem191c | E9Q1C2 | 1 |
| Transmembrane protein 199 | Tmem199 | Q5SYH2 | 1 |
| Transmembrane protein 2 | Tmem2 Kiaa1412 | Q5FWI3 | 1 |
| Transmembrane protein 208 | Tmem208 | Q9CR96 | 1 |
| Transmembrane protein 209 | Tmem209 | Q8BRG8 | 1 |
| Transmembrane protein 216 (Thymus atrophy-related protein) | Tmem216 | Q9CQC4 | 1 |
| Transmembrane protein 246 | Tmem246 | Q91YV9 | 1 |
| Transmembrane protein 252 | Tmem252 | Q8C353 | 1 |
| Transmembrane protein 42 | Tmem42 | Q9CR22 | 1 |
| Transmembrane protein 43 (Protein LUMA) | Tmem43 | Q9DBS1 | 1 |
| Transmembrane protein 50A (Small membrane protein 1) | Tmem50a Smp1 | Q9CXL1 | 1 |
| Transmembrane protein 50B | Tmem50b | Q9D1X9 | 1 |
| Transmembrane protein 52B | Tmem52b | Q0VBF2 | 1 |
| Transmembrane protein 56 | Tmem56 | Q8CGF5 | 1 |
| Transmembrane protein 60 | Tmem60 | Q8K174 | 1 |
| Transmembrane protein 63A | Tmem63a Kiaa0792 | Q91YT8 | 1 |
| Transmembrane protein 9B | Tmem9b | Q9JJR8 | 1 |
| Transmembrane protein adipocyte-associated 1 (Integral membrane protein GPR175) (TPRA40) (Transmembrane domain protein of 40 kDa regulated in adipocytes) | Tpra1 Gpr175 Tpra40 | Q99MU1 | 1 |
| Transmembrane protein ENSP00000340100 homolog | 0 | Q80YD3 | 1 |
| Transportin-1 (Importin beta-2) (Karyopherin beta-2) | Tnpo1 Kpnb2 | Q8BFY9 | 1 |
| Trifunctional enzyme subunit alpha, mitochondrial (TP-alpha) [Includes: Long-chain enoyl-CoA hydratase (EC 4.2.1.17); Long chain 3-hydroxyacyl-CoA dehydrogenase (EC 1.1.1.211)] | Hadha | Q8BMS1 | 1 |
| Triggering receptor expressed on myeloid cells 1 (TREM-1) (CD antigen CD354) | Trem1 | Q9JKE2 | 1 |
| Trimeric intracellular cation channel type B (TRIC-B) (TRICB) (Mitsugumin-33B) (Transmembrane protein 38B) | Tmem38b D4Ertd89e Mg33b | Q9DAV9 | 1 |
| Tripartite motif-containing protein 16 (Estrogen-responsive B box protein) | Trim16 Ebbp | Q99PP9 | 1 |
| Tripartite motif-containing protein 43A | Trim43a | Q3TL54 | 1 |
| Tripartite motif-containing protein 62 | Trim62 | Q80V85 | 1 |
| Triple functional domain protein (EC 2.7.11.1) | Trio | Q0KL02 | 1 |
| tRNA (guanine(10)-N2)-methyltransferase homolog (EC 2.1.1.-) (tRNA guanosine-2'-O-methyltransferase TRM11 homolog) | Trmt11 | Q9CWH5 | 1 |
| tRNA (guanine(26)-N(2))-dimethyltransferase (EC 2.1.1.216) (tRNA 2,2-dimethylguanosine-26 methyltransferase) (tRNA(guanine-26,N(2)-N(2)) methyltransferase) (tRNA(m(2,2)G26)dimethyltransferase) | Trmt1 D8Ertd812e | Q3TX08 | 1 |
| tRNA (guanine(37)-N1)-methyltransferase (EC 2.1.1.228) (M1G-methyltransferase) (tRNA [GM37] methyltransferase) (tRNA methyltransferase 5 homolog) | Trmt5 Kiaa1393 Trm5 | Q9D0C4 | 1 |
| tRNA (uracil-5-)-methyltransferase homolog A (EC 2.1.1.-) (HpaII tiny fragments locus 9c protein) | Trmt2a Htf9-c Htf9c | Q8BNV1 | 1 |
| tRNA dimethylallyltransferase, mitochondrial (EC 2.5.1.75) (Isopentenyl-diphosphate:tRNA isopentenyltransferase) (IPP transferase) (IPPT) (tRNA isopentenyltransferase) (IPTase) | Trit1 Ipt | Q80UN9 | 1 |
| tRNA wybutosine-synthesizing protein 2 homolog (tRNA-yW-synthesizing protein 2) (EC 2.1.1.-) (Alpha-amino-alpha-carboxypropyl transferase TYW2) (EC 2.5.1.-) | Trmt12 Tyw2 | Q8BG71 | 1 |
| tRNA-dihydrouridine(20) synthase [NAD(P)+]-like (EC 1.3.1.-) (Dihydrouridine synthase 2) (tRNA-dihydrouridine synthase 2-like) | Dus2 Dus2l | Q9D7B1 | 1 |
| tRNA:m(4)X modification enzyme TRM13 homolog (EC 2.1.1.225) (Coiled-coil domain-containing protein 76) | Trmt13 Ccdc76 | Q8BYH3 | 1 |
| Trophoblast glycoprotein (5T4 oncofetal trophoblast glycoprotein) (5T4 oncotrophoblast glycoprotein) | Tpbg 5t4 | Q9Z0L0 | 1 |
| Tropomyosin alpha-4 chain (Tropomyosin-4) | Tpm4 | Q6IRU2 | 1 |
| Tryptophan--tRNA ligase, cytoplasmic (EC 6.1.1.2) (Tryptophanyl-tRNA synthetase) (TrpRS) [Cleaved into: T1-TrpRS; T2-TrpRS] | Wars Wrs | P32921 | 1 |
| TSC22 domain family protein 1 (Regulatory protein TSC-22) (TGFB-stimulated clone 22 homolog) (TSC22-related inducible leucine zipper 1b) (Transforming growth factor beta-1-induced transcript 4 protein) | Tsc22d1 Kiaa1994 Tgfb1i4 Tilz1b Tsc22 | P62500 | 1 |
| TSC22 domain family protein 4 (TSC22-related-inducible leucine zipper protein 2) (Thg-1pit) | Tsc22d4 Thg1pit Tilz2 | Q9EQN3 | 1 |
| Tubby-related protein 4 (Tubby superfamily protein) (Tubby-like protein 4) | Tulp4 Tusp | Q9JIL5 | 1 |
| Tubulin beta-2B chain | Tubb2b | Q9CWF2 | 1 |
| Tubulin beta-4B chain (Tubulin beta-2C chain) | Tubb4b Tubb2c | P68372 | 1 |
| Tubulin beta-6 chain | Tubb6 | Q922F4 | 1 |
| Tubulin gamma-1 chain (Gamma-1-tubulin) (Gamma-tubulin complex component 1) (GCP-1) | Tubg1 Tubg | P83887 | 1 |
| Tubulin polyglutamylase complex subunit 1 (PGs1) (p32) | Tpgs1 Gm16517 Gtrgeo22 | Q99MS8 | 1 |
| Tubulin--tyrosine ligase-like protein 12 | Ttll12 | Q3UDE2 | 1 |
| Tubulin-specific chaperone C (Tubulin-folding cofactor C) (CFC) | Tbcc | Q8VCN9 | 1 |
| Tudor and KH domain-containing protein (Tudor domain-containing protein 2) | Tdrkh Tdrd2 | Q80VL1 | 1 |
| Tudor domain-containing protein 3 | Tdrd3 | Q91W18 | 1 |
| Tuftelin-interacting protein 11 (Septin and tuftelin-interacting protein 1) (STIP-1) (Tuftelin-interacting protein 39) | Tfip11 Stip Tip39 | Q9ERA6 | 1 |
| Tumor necrosis factor alpha-induced protein 2 (TNF alpha-induced protein 2) (Primary response gene B94 protein) | Tnfaip2 | Q61333 | 1 |
| Tumor necrosis factor ligand superfamily member 8 (CD30 ligand) (CD30-L) (CD antigen CD153) | Tnfsf8 Cd30l Cd30lg | P32972 | 1 |
| Tumor necrosis factor receptor superfamily member 1B (Tumor necrosis factor receptor 2) (TNF-R2) (Tumor necrosis factor receptor type II) (TNF-RII) (TNFR-II) (p75) (p80 TNF-alpha receptor) (CD antigen CD120b) | Tnfrsf1b Tnfr-2 Tnfr2 | P25119 | 1 |
| Tumor necrosis factor receptor type 1-associated DEATH domain protein (TNFR1-associated DEATH domain protein) (TNFRSF1A-associated via death domain) | Tradd | Q3U0V2 | 1 |
| Tumor protein D54 (Tumor protein D52-like 2) | Tpd52l2 | Q9CYZ2 | 1 |
| Tumor protein p53-inducible nuclear protein 2 (Diabetes and obesity-regulated protein) | Tp53inp2 Dor Trp53inp2 | Q8CFU8 | 1 |
| Tumor protein p63-regulated gene 1-like protein (Mossy fiber terminal-associated vertebrate-specific presynaptic protein) (Protein FAM79A) | Tprg1l Fam79a Mover Tprgl | Q9DBS2 | 1 |
| Tumor suppressor candidate gene 1 protein homolog | Tusc1 | Q673H1 | 1 |
| Tumor suppressor p53-binding protein 1 (53BP1) (p53-binding protein 1) (p53BP1) | Tp53bp1 Trp53bp1 | P70399 | 1 |
| Twinkle protein, mitochondrial (EC 3.6.4.12) (Progressive external ophthalmoplegia 1 protein homolog) (T7 gp4-like protein with intramitochondrial nucleoid localization) (T7-like mitochondrial DNA helicase) | Peo1 | Q8CIW5 | 1 |
| Twisted gastrulation protein homolog 1 | Twsg1 Tsg | Q9EP52 | 1 |
| Two pore calcium channel protein 1 (Voltage-dependent calcium channel protein TPC1) | Tpcn1 Kiaa1169 Tpc1 | Q9EQJ0 | 1 |
| Type 1 phosphatidylinositol 4,5-bisphosphate 4-phosphatase (Type 1 PtdIns-4,5-P2 4-Ptase) (EC 3.1.3.78) (PtdIns-4,5-P2 4-Ptase I) (Transmembrane protein 55B) | Tmem55b | Q3TWL2 | 1 |
| Type-1 angiotensin II receptor-associated protein (AT1 receptor-associated protein) | Agtrap Atrap | Q9WVK0 | 1 |
| TYRO protein tyrosine kinase-binding protein (DNAX-activation protein 12) (Killer-activating receptor-associated protein) (KAR-associated protein) | Tyrobp Dap12 Karap | O54885 | 1 |
| Tyrosine--tRNA ligase, cytoplasmic (EC 6.1.1.1) (Tyrosyl-tRNA synthetase) (TyrRS) [Cleaved into: Tyrosine--tRNA ligase, cytoplasmic, N-terminally processed] | Yars | Q91WQ3 | 1 |
| Tyrosine--tRNA ligase, mitochondrial (EC 6.1.1.1) (Tyrosyl-tRNA synthetase) (TyrRS) | Yars2 | Q8BYL4 | 1 |
| Tyrosine-protein kinase ABL1 (EC 2.7.10.2) (Abelson murine leukemia viral oncogene homolog 1) (Abelson tyrosine-protein kinase 1) (Proto-oncogene c-Abl) (p150) | Abl1 Abl | P00520 | 1 |
| Tyrosine-protein kinase Fyn (EC 2.7.10.2) (Proto-oncogene c-Fyn) (p59-Fyn) | Fyn | P39688 | 1 |
| Tyrosine-protein kinase HCK (EC 2.7.10.2) (B-cell/myeloid kinase) (BMK) (Hematopoietic cell kinase) (Hemopoietic cell kinase) (p56-HCK/p59-HCK) | Hck | P08103 | 1 |
| Tyrosine-protein kinase JAK2 (EC 2.7.10.2) (Janus kinase 2) (JAK-2) | Jak2 | Q62120 | 1 |
| Tyrosine-protein kinase JAK3 (EC 2.7.10.2) (Janus kinase 3) (JAK-3) | Jak3 | Q62137 | 1 |
| Tyrosine-protein kinase Lyn (EC 2.7.10.2) (V-yes-1 Yamaguchi sarcoma viral related oncogene homolog) (p53Lyn) (p56Lyn) | Lyn | P25911 | 1 |
| Tyrosine-protein kinase Mer (EC 2.7.10.1) (Proto-oncogene c-Mer) (Receptor tyrosine kinase MerTK) | Mertk Mer | Q60805 | 1 |
| Tyrosine-protein kinase receptor UFO (EC 2.7.10.1) (Adhesion-related kinase) | Axl Ark Ufo | Q00993 | 1 |
| Tyrosine-protein kinase STYK1 (EC 2.7.10.2) (Novel oncogene with kinase domain) (mNOK) (Serine/threonine/tyrosine kinase 1) | Styk1 Nok | Q6J9G1 | 1 |
| Tyrosine-protein phosphatase non-receptor type 13 (EC 3.1.3.48) (PTP36) (Protein tyrosine phosphatase DPZPTP) (Protein tyrosine phosphatase PTP-BL) (Protein-tyrosine phosphatase RIP) | Ptpn13 Ptp14 | Q64512 | 1 |
| Tyrosyl-DNA phosphodiesterase 1 (Tyrosyl-DNA phosphodiesterase 1, isoform CRA_b) | Tdp1 mCG_14730 | B8JJC1 | 1 |
| U2 small nuclear ribonucleoprotein auxiliary factor 35 kDa subunit-related protein 2 | Zrsr2 | B1B0E8 | 1 |
| U3 small nucleolar ribonucleoprotein protein IMP4 (U3 snoRNP protein IMP4) | Imp4 D1Wsu40e | Q8VHZ7 | 1 |
| U3 small nucleolar RNA-associated protein 18 homolog (WD repeat-containing protein 50) | Utp18 Wdr50 | Q5SSI6 | 1 |