| Transcription factor Sp4 (SPR-1) | SP4 | Q02446 | 3 |
| Transcription factor TFIIIB component B'' homolog (Transcription factor IIIB 150) (TFIIIB150) (Transcription factor-like nuclear regulator) | BDP1 KIAA1241 KIAA1689 TFNR | A6H8Y1 | 3 |
| Transcription initiation factor IIA subunit 1 (General transcription factor IIA subunit 1) (TFIIAL) (Transcription initiation factor TFIIA 42 kDa subunit) (TFIIA-42) [Cleaved into: Transcription initiation factor IIA alpha chain (TFIIA p35 subunit); Transcription initiation factor IIA beta chain (TFIIA p19 subunit)] | GTF2A1 TF2A1 | P52655 | 3 |
| Transcription initiation factor TFIID subunit 12 (Transcription initiation factor TFIID 20/15 kDa subunits) (TAFII-20/TAFII-15) (TAFII20/TAFII15) | TAF12 TAF15 TAF2J TAFII20 | Q16514 | 3 |
| Transcription initiation factor TFIID subunit 5 (Transcription initiation factor TFIID 100 kDa subunit) (TAF(II)100) (TAFII-100) (TAFII100) | TAF5 TAF2D | Q15542 | 3 |
| Transcription initiation factor TFIID subunit 7 (RNA polymerase II TBP-associated factor subunit F) (Transcription initiation factor TFIID 55 kDa subunit) (TAF(II)55) (TAFII-55) (TAFII55) | TAF7 TAF2F TAFII55 | Q15545 | 3 |
| Transcriptional adapter 1 (SPT3-associated factor 42) (STAF42) (Transcriptional adapter 1-like protein) | TADA1 TADA1L | Q96BN2 | 3 |
| Transcriptional enhancer factor TEF-1 (NTEF-1) (Protein GT-IIC) (TEA domain family member 1) (TEAD-1) (Transcription factor 13) (TCF-13) | TEAD1 TCF13 TEF1 | P28347 | 3 |
| Transcriptional repressor CTCFL (Brother of the regulator of imprinted sites) (CCCTC-binding factor) (CTCF paralog) (CTCF-like protein) (Cancer/testis antigen 27) (CT27) (Zinc finger protein CTCF-T) | CTCFL BORIS | Q8NI51 | 3 |
| Transferrin receptor protein 2 (TfR2) | TFR2 | Q9UP52 | 3 |
| Transforming growth factor-beta receptor-associated protein 1 (TGF-beta receptor-associated protein 1) (TRAP-1) (TRAP1) | TGFBRAP1 | Q8WUH2 | 3 |
| Transient receptor potential cation channel subfamily M member 1 (Long transient receptor potential channel 1) (LTrpC1) (Melastatin-1) | TRPM1 LTRPC1 MLSN MLSN1 | Q7Z4N2 | 3 |
| Transient receptor potential cation channel subfamily V member 6 (TrpV6) (CaT-like) (CaT-L) (Calcium transport protein 1) (CaT1) (Epithelial calcium channel 2) (ECaC2) | TRPV6 ECAC2 | Q9H1D0 | 3 |
| Translation factor GUF1, mitochondrial (EC 3.6.5.-) (Elongation factor 4 homolog) (EF-4) (GTPase GUF1) (Ribosomal back-translocase) | GUF1 | Q8N442 | 3 |
| Translation initiation factor IF-3, mitochondrial (IF-3(Mt)) (IF-3Mt) (IF3(mt)) (IF3mt) | MTIF3 DC38 | Q9H2K0 | 3 |
| Transmembrane 4 L6 family member 5 (Tetraspan transmembrane protein L6H) | TM4SF5 | O14894 | 3 |
| Transmembrane 6 superfamily member 2 | TM6SF2 | Q9BZW4 | 3 |
| Transmembrane 9 superfamily member 1 (MP70 protein family member) (hMP70) | TM9SF1 | O15321 | 3 |
| Transmembrane 9 superfamily member 2 (p76) | TM9SF2 | Q99805 | 3 |
| Transmembrane and coiled-coil domain-containing protein 1 (Transmembrane and coiled-coil domains 1, isoform CRA_b) | TMCO1 hCG_1766418 | J9JIE6 | 3 |
| Transmembrane epididymal protein 1 (Human epididymis-specific protein 9) (He9) | TEDDM1 HE9 | Q5T9Z0 | 3 |
| Transmembrane glycoprotein NMB (Transmembrane glycoprotein HGFIN) | GPNMB HGFIN NMB UNQ1725/PRO9925 | Q14956 | 3 |
| Transmembrane protease serine 2 (EC 3.4.21.-) (Serine protease 10) [Cleaved into: Transmembrane protease serine 2 non-catalytic chain; Transmembrane protease serine 2 catalytic chain] | TMPRSS2 PRSS10 | O15393 | 3 |
| Transmembrane protein 101 (Putative NF-kappa-B-activating protein 130) | TMEM101 | Q96IK0 | 3 |
| Transmembrane protein 119 (Osteoblast induction factor) (OBIF) | TMEM119 PSEC0199 UNQ731/PRO1415 | Q4V9L6 | 3 |
| Transmembrane protein 125 | TMEM125 | Q96AQ2 | 3 |
| Transmembrane protein 132A (HSPA5-binding protein 1) | TMEM132A HSPA5BP1 KIAA1583 | Q24JP5 | 3 |
| Transmembrane protein 139 | TMEM139 UNQ1932/PRO4407 | Q8IV31 | 3 |
| Transmembrane protein 141 | TMEM141 | Q96I45 | 3 |
| Transmembrane protein 151A | TMEM151A TMEM151 | Q8N4L1 | 3 |
| Transmembrane protein 163 | TMEM163 | Q8TC26 | 3 |
| Transmembrane protein 180 | TMEM180 C10orf77 | Q14CX5 | 3 |
| Transmembrane protein 194A | TMEM194A KIAA0286 TMEM194 | O14524 | 3 |
| Transmembrane protein 209 | TMEM209 | Q96SK2 | 3 |
| Transmembrane protein 216 | TMEM216 HSPC244 | Q9P0N5 | 3 |
| Transmembrane protein 221 | TMEM221 | A6NGB7 | 3 |
| Transmembrane protein 237 (Amyotrophic lateral sclerosis 2 chromosomal region candidate gene 4 protein) | TMEM237 ALS2CR4 | Q96Q45 | 3 |
| Transmembrane protein 255B (Protein FAM70B) | TMEM255B FAM70B | Q8WV15 | 3 |
| Transmembrane protein 41B | TMEM41B KIAA0033 | Q5BJD5 | 3 |
| Transmembrane protein 42 | TMEM42 | Q69YG0 | 3 |
| Transmembrane protein 50B (HCV p7-trans-regulated protein 3) | TMEM50B C21orf4 UNQ167/PRO193 | P56557 | 3 |
| Transmembrane protein 52 | TMEM52 UNQ3048/PRO9864 | Q8NDY8 | 3 |
| Transmembrane protein 62 | TMEM62 | Q0P6H9 | 3 |
| Transmembrane protein 9 (Dermal papilla-derived protein 4) | TMEM9 DERP4 HSPC186 PSEC0012 UNQ631/PRO1248 | Q9P0T7 | 3 |
| Transmembrane protein 91 (Dispanin subfamily C member 3) (DSPC3) | TMEM91 | Q6ZNR0 | 3 |
| Transmembrane protein 99 | TMEM99 | Q8N816 | 3 |
| Transmembrane protein 9B | TMEM9B C11orf15 UNQ712/PRO1375 | Q9NQ34 | 3 |
| Transmembrane protein C9orf91 | C9orf91 | Q5VZI3 | 3 |
| Trimeric intracellular cation channel type B (TRIC-B) (TRICB) (Transmembrane protein 38B) | TMEM38B C9orf87 | Q9NVV0 | 3 |
| Tripartite motif-containing protein 15 (RING finger protein 93) (Zinc finger protein 178) (Zinc finger protein B7) | TRIM15 RNF93 ZNF178 ZNFB7 | Q9C019 | 3 |
| Tripartite motif-containing protein 16-like protein (Tripartite motif-containing protein 70) | TRIM16L TRIM70 | Q309B1 | 3 |
| Tripartite motif-containing protein 54 (Muscle-specific RING finger protein) (MuRF) (Muscle-specific RING finger protein 3) (MuRF-3) (MuRF3) (RING finger protein 30) | TRIM54 MURF MURF3 RNF30 | Q9BYV2 | 3 |
| Tripartite motif-containing protein 58 (Protein BIA2) | TRIM58 | Q8NG06 | 3 |
| Tripartite motif-containing protein 62 | TRIM62 | Q9BVG3 | 3 |
| Tripartite motif-containing protein 65 | TRIM65 | Q6PJ69 | 3 |
| Tripartite motif-containing protein 7 (Glycogenin-interacting protein) (RING finger protein 90) | TRIM7 GNIP RNF90 | Q9C029 | 3 |
| Tripartite motif-containing protein 73 (Tripartite motif-containing protein 50B) | TRIM73 TRIM50B | Q86UV7 | 3 |
| Tripeptidyl-peptidase 2 (TPP-2) (EC 3.4.14.10) (Tripeptidyl aminopeptidase) (Tripeptidyl-peptidase II) (TPP-II) | TPP2 | P29144 | 3 |
| tRNA pseudouridine synthase-like 1 (EC 5.4.99.-) (tRNA pseudouridylate synthase-like 1) (tRNA-uridine isomerase-like 1) | PUSL1 | Q8N0Z8 | 3 |
| tRNA pseudouridine(38/39) synthase (EC 5.4.99.45) (tRNA pseudouridine synthase 3) (tRNA pseudouridylate synthase 3) (tRNA-uridine isomerase 3) | PUS3 FKSG32 | Q9BZE2 | 3 |
| 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 TRM12 TYW2 | Q53H54 | 3 |
| tRNA-specific adenosine deaminase 1 (hADAT1) (EC 3.5.4.34) (tRNA-specific adenosine-37 deaminase) | ADAT1 | Q9BUB4 | 3 |
| tRNA-splicing endonuclease subunit Sen15 (SEN15 homolog) (HsSEN15) (tRNA-intron endonuclease Sen15) | TSEN15 C1orf19 SEN15 | Q8WW01 | 3 |
| Troponin T, cardiac muscle (TnTc) (Cardiac muscle troponin T) (cTnT) | TNNT2 | P45379 | 3 |
| Troponin T, fast skeletal muscle (TnTf) (Beta-TnTF) (Fast skeletal muscle troponin T) (fTnT) | TNNT3 | P45378 | 3 |
| Trypsin-3 (EC 3.4.21.4) (Brain trypsinogen) (Mesotrypsinogen) (Serine protease 3) (Serine protease 4) (Trypsin III) (Trypsin IV) | PRSS3 PRSS4 TRY3 TRY4 | P35030 | 3 |
| Tryptophan--tRNA ligase, mitochondrial (EC 6.1.1.2) ((Mt)TrpRS) (Tryptophanyl-tRNA synthetase) (TrpRS) | WARS2 | Q9UGM6 | 3 |
| TSC22 domain family protein 4 (TSC22-related-inducible leucine zipper protein 2) (Tsc-22-like protein THG-1) | TSC22D4 THG1 TILZ2 | Q9Y3Q8 | 3 |
| Tsukushin (Tsukushi) (E2-induced gene 4 protein) (Leucine-rich repeat-containing protein 54) | TSKU E2IG4 LRRC54 TSK UNQ850/PRO1788 | Q8WUA8 | 3 |
| TTC17 protein | TTC17 | Q49A97 | 3 |
| Tubby-related protein 3 (Tubby-like protein 3) | TULP3 TUBL3 | O75386 | 3 |
| Tubby-related protein 4 (Tubby superfamily protein) (Tubby-like protein 4) | TULP4 KIAA1397 TUBL4 TUSP | Q9NRJ4 | 3 |
| Tuberoinfundibular peptide of 39 residues (TIP39) (Parathyroid hormone 2) | PTH2 TIP39 TIPF39 | Q96A98 | 3 |
| Tubulin beta-2A chain (Tubulin beta class IIa) | TUBB2A TUBB2 | Q13885 | 3 |
| Tubulin beta-2B chain | TUBB2B | Q9BVA1 | 3 |
| Tubulin delta chain (Delta-tubulin) | TUBD1 TUBD | Q9UJT1 | 3 |
| Tubulin monoglycylase TTLL3 (EC 6.3.2.-) (HOTTL) (Tubulin--tyrosine ligase-like protein 3) | TTLL3 PRO0207 | Q9Y4R7 | 3 |
| Tubulin polyglutamylase TTLL4 (EC 6.-.-.-) (Tubulin--tyrosine ligase-like protein 4) | TTLL4 KIAA0173 | Q14679 | 3 |
| Tumor necrosis factor alpha-induced protein 3 (TNF alpha-induced protein 3) (EC 3.4.19.12) (EC 6.3.2.-) (OTU domain-containing protein 7C) (Putative DNA-binding protein A20) (Zinc finger protein A20) [Cleaved into: A20p50; A20p37] | TNFAIP3 OTUD7C | P21580 | 3 |
| Tumor necrosis factor ligand superfamily member 12 (APO3 ligand) (TNF-related weak inducer of apoptosis) (TWEAK) [Cleaved into: Tumor necrosis factor ligand superfamily member 12, membrane form; Tumor necrosis factor ligand superfamily member 12, secreted form] | TNFSF12 APO3L DR3LG UNQ181/PRO207 | O43508 | 3 |
| Tumor necrosis factor receptor superfamily member 10C (Antagonist decoy receptor for TRAIL/Apo-2L) (Decoy TRAIL receptor without death domain) (Decoy receptor 1) (DcR1) (Lymphocyte inhibitor of TRAIL) (TNF-related apoptosis-inducing ligand receptor 3) (TRAIL receptor 3) (TRAIL-R3) (TRAIL receptor without an intracellular domain) (CD antigen CD263) | TNFRSF10C DCR1 LIT TRAILR3 TRID UNQ321/PRO366 | O14798 | 3 |
| Tumor necrosis factor receptor superfamily member 18 (Activation-inducible TNFR family receptor) (Glucocorticoid-induced TNFR-related protein) (CD antigen CD357) | TNFRSF18 AITR GITR UNQ319/PRO364 | Q9Y5U5 | 3 |
| Tumor necrosis factor receptor superfamily member 19 (TRADE) (Toxicity and JNK inducer) | TNFRSF19 TAJ TROY UNQ1888/PRO4333 | Q9NS68 | 3 |
| Tumor necrosis factor receptor superfamily member 21 (Death receptor 6) (CD antigen CD358) | TNFRSF21 DR6 UNQ437/PRO868 | O75509 | 3 |
| Tumor necrosis factor receptor superfamily member 6B (Decoy receptor 3) (DcR3) (Decoy receptor for Fas ligand) (M68) | TNFRSF6B DCR3 TR6 UNQ186/PRO212 | O95407 | 3 |
| Tumor necrosis factor receptor superfamily member 8 (CD30L receptor) (Ki-1 antigen) (Lymphocyte activation antigen CD30) (CD antigen CD30) | TNFRSF8 CD30 D1S166E | P28908 | 3 |
| Tumor protein p63-regulated gene 1-like protein (Mossy fiber terminal-associated vertebrate-specific presynaptic protein) (Protein FAM79A) | TPRG1L FAM79A MOVER | Q5T0D9 | 3 |
| Tumor suppressor candidate 3 (Magnesium uptake/transporter TUSC3) (Protein N33) | TUSC3 N33 | Q13454 | 3 |
| Tumor-associated calcium signal transducer 2 (Cell surface glycoprotein Trop-2) (Membrane component chromosome 1 surface marker 1) (Pancreatic carcinoma marker protein GA733-1) | TACSTD2 GA733-1 M1S1 TROP2 | P09758 | 3 |
| Twisted gastrulation protein homolog 1 | TWSG1 TSG PSEC0250 | Q9GZX9 | 3 |
| 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 C14orf9 | Q86T03 | 3 |
| Type I inositol 1,4,5-trisphosphate 5-phosphatase (5PTase) (EC 3.1.3.56) | INPP5A | Q14642 | 3 |
| Tyrosine 3-monooxygenase/tryptophan 5-monooxygenase activation protein zeta polypeptide | YWHAZ | D0PNI1 | 3 |
| Tyrosine-protein kinase BTK (EC 2.7.10.2) (Agammaglobulinemia tyrosine kinase) (ATK) (B-cell progenitor kinase) (BPK) (Bruton tyrosine kinase) | BTK AGMX1 ATK BPK | Q06187 | 3 |
| Tyrosine-protein kinase RYK (EC 2.7.10.1) | RYK JTK5A | P34925 | 3 |
| Tyrosine-protein kinase transmembrane receptor ROR1 (EC 2.7.10.1) (Neurotrophic tyrosine kinase, receptor-related 1) | ROR1 NTRKR1 | Q01973 | 3 |
| Tyrosine-protein phosphatase non-receptor type 14 (EC 3.1.3.48) (Protein-tyrosine phosphatase pez) | PTPN14 PEZ PTPD2 | Q15678 | 3 |
| Tyrosine-protein phosphatase non-receptor type 18 (EC 3.1.3.48) (Brain-derived phosphatase) | PTPN18 BDP1 | Q99952 | 3 |
| Tyrosine-protein phosphatase non-receptor type 3 (EC 3.1.3.48) (Protein-tyrosine phosphatase H1) (PTP-H1) | PTPN3 PTPH1 | P26045 | 3 |
| Tyrosyl-DNA phosphodiesterase 1 (Tyr-DNA phosphodiesterase 1) (EC 3.1.4.-) | TDP1 | Q9NUW8 | 3 |