| Transient receptor potential cation channel subfamily M member 7 (EC 2.7.11.1) (Channel-kinase 1) (Long transient receptor potential channel 7) (LTrpC-7) (LTrpC7) (Transient receptor potential-phospholipase C-interacting kinase) (TRP-PLIK) | Trpm7 Chak Ltrpc7 | Q923J1 | 3 |
| Transitional endoplasmic reticulum ATPase (TER ATPase) (EC 3.6.4.6) (15S Mg(2+)-ATPase p97 subunit) (Valosin-containing protein) (VCP) | Vcp | Q01853 | 3 |
| Transmembrane 7 superfamily member 3 (NARP1) | Tm7sf3 | Q9CRG1 | 3 |
| Transmembrane channel-like protein 1 (Beethoven protein) (Deafness protein) (Transmembrane cochlear-expressed protein 1) | Tmc1 Bth dn | Q8R4P5 | 3 |
| Transmembrane glycoprotein NMB (DC-HIL) (Dendritic cell-associated transmembrane protein) (Osteoactivin) | Gpnmb Dchil Hgfin Nmb | Q99P91 | 3 |
| Transmembrane protein 106B | Tmem106b | Q80X71 | 3 |
| Transmembrane protein 134 | Tmem134 | Q8R0J4 | 3 |
| Transmembrane protein 161B | Tmem161b | Q8C2L6 | 3 |
| Transmembrane protein 189 | Tmem189 | Q99LQ7 | 3 |
| Transmembrane protein 206 | Tmem206 | Q9D771 | 3 |
| Transmembrane protein 239 | Tmem239 | Q9DA47 | 3 |
| Transmembrane protein 242 | Tmem242 | Q8VCR3 | 3 |
| Transportin-3 | Tnpo3 | Q6P2B1 | 3 |
| Treacle protein (Treacher Collins syndrome protein homolog) | Tcof1 | O08784 | 3 |
| Trimethylguanosine synthase (EC 2.1.1.-) (Nuclear receptor coactivator 6-interacting protein) (PRIP-interacting protein with methyltransferase motif) (PIMT) (PIPMT) | Tgs1 Ncoa6ip Pimt | Q923W1 | 3 |
| Trinucleotide repeat-containing gene 6C protein | Tnrc6c Kiaa1582 | Q3UHC0 | 3 |
| Tripartite motif-containing protein 12A | Trim12a Trim12 | Q99PQ1 | 3 |
| Tripartite motif-containing protein 2 (EC 6.3.2.-) (E3 ubiquitin-protein ligase TRIM2) (Neural activity-related RING finger protein) | Trim2 Kiaa0517 Narf | Q9ESN6 | 3 |
| Tripartite motif-containing protein 35 (Hemopoietic lineage switch protein 5) (Macrophage-derived apoptosis-inducing RBCC protein) (Protein MAIR) (Protein Nc8) | Trim35 Hls5 Kiaa1098 Mair | Q8C006 | 3 |
| Tripeptidyl-peptidase 2 (TPP-2) (EC 3.4.14.10) (Tripeptidyl aminopeptidase) (Tripeptidyl-peptidase II) (TPP-II) | Tpp2 | Q64514 | 3 |
| Triple QxxK/R motif-containing protein (Triple repetitive-sequence of QXXK/R protein homolog) | Triqk Gm11818 | B2B9E1 | 3 |
| tRNA (uracil(54)-C(5))-methyltransferase homolog (EC 2.1.1.35) (TRM2 homolog) | Trmt2b | Q8BQJ6 | 3 |
| tRNA methyltransferase 10 homolog A (EC 2.1.1.-) (RNA (guanine-9-)-methyltransferase domain-containing protein 2) | Trmt10a Rg9mtd2 | Q8C1Z8 | 3 |
| tRNA methyltransferase 112 homolog (TRM112-like protein) | Trmt112 | Q9DCG9 | 3 |
| tRNA pseudouridine(38/39) synthase (EC 5.4.99.45) (tRNA pseudouridine synthase 3) (tRNA pseudouridylate synthase 3) (tRNA-uridine isomerase 3) | Pus3 | Q9JI38 | 3 |
| tRNA-dihydrouridine(16/17) synthase [NAD(P)(+)]-like (EC 1.3.1.-) (tRNA-dihydrouridine synthase 1-like) | Dus1l | Q8C2P3 | 3 |
| tRNA-splicing endonuclease subunit Sen15 (tRNA-intron endonuclease Sen15) | Tsen15 Sen15 | Q8R3W5 | 3 |
| Tropomyosin alpha-1 chain (Alpha-tropomyosin) (Tropomyosin-1) | Tpm1 Tpm-1 Tpma | P58771 | 3 |
| Truncated Wilms' tumor protein | Wt1 | Q199A7 | 3 |
| Tryptophan 5-hydroxylase 1 (EC 1.14.16.4) (Tryptophan 5-monooxygenase 1) | Tph1 Tph | P17532 | 3 |
| Tubulin gamma-2 chain (Gamma-2-tubulin) | Tubg2 | Q8VCK3 | 3 |
| Tubulin--tyrosine ligase (TTL) (EC 6.3.2.25) | Ttl | P38585 | 3 |
| Tumor necrosis factor receptor superfamily member 13C (B-cell maturation defect) (B-cell-activating factor receptor) (BAFF receptor) (BAFF-R) (BLyS receptor 3) (CD antigen CD268) | Tnfrsf13c Baffr Bcmd Br3 | Q9D8D0 | 3 |
| Tumor necrosis factor receptor superfamily member 19L | Relt Tnfrsf19l | Q8BX43 | 3 |
| Tumor necrosis factor receptor superfamily member 3 (Lymphotoxin-beta receptor) | Ltbr Tnfcr Tnfrsf3 | P50284 | 3 |
| Twinfilin-1 (Protein A6) | Twf1 Ptk9 | Q91YR1 | 3 |
| Twinfilin-2 (A6-related protein) (mA6RP) (Twinfilin-1-like protein) | Twf2 Ptk9l | Q9Z0P5 | 3 |
| Tyrosine-protein kinase (EC 2.7.10.2) | Tyk2 | E9QJS1 | 3 |
| Tyrosine-protein kinase RYK (EC 2.7.10.1) (Kinase VIK) (Met-related kinase) (NYK-R) | Ryk Mrk | Q01887 | 3 |
| Tyrosine-protein phosphatase non-receptor type 22 (EC 3.1.3.48) (Hematopoietic cell protein-tyrosine phosphatase 70Z-PEP) (PEST-domain phosphatase) (PEP) | Ptpn22 Ptpn8 | P29352 | 3 |
| U11/U12 small nuclear ribonucleoprotein 25 kDa protein (U11/U12 snRNP 25 kDa protein) | Snrnp25 | Q8VIK1 | 3 |
| U2 small nuclear ribonucleoprotein B'' (U2 snRNP B'') | Snrpb2 | Q9CQI7 | 3 |
| U4/U6.U5 small nuclear ribonucleoprotein 27 kDa protein (U4/U6.U5 snRNP 27 kDa protein) (U4/U6.U5-27K) (U4/U6.U5 tri-snRNP-associated protein 3) | Snrnp27 | Q8K194 | 3 |
| U5 small nuclear ribonucleoprotein 40 kDa protein (U5 snRNP 40 kDa protein) (WD repeat-containing protein 57) | Snrnp40 Wdr57 | Q6PE01 | 3 |
| U6 snRNA-associated Sm-like protein LSm7 | Lsm7 | Q9CQQ8 | 3 |
| U8 snoRNA-decapping enzyme (EC 3.6.1.62) (IDP phosphatase) (IDPase) (EC 3.6.1.-) (Inosine diphosphate phosphatase) (Nucleoside diphosphate-linked moiety X motif 16) (Nudix motif 16) (m7GpppN-mRNA hydrolase) | Nudt16 | Q6P3D0 | 3 |
| Ubiquinone biosynthesis protein COQ7 homolog (Coenzyme Q biosynthesis protein 7 homolog) (Timing protein clk-1 homolog) | Coq7 | P97478 | 3 |
| Ubiquitin carboxyl-terminal hydrolase 17-like protein A (USP17-A) (EC 3.4.19.12) (Deubiquitinating enzyme 1) (Ubiquitin carboxyl-terminal hydrolase DUB-1) (Ubiquitin thioesterase DUB-1) (Ubiquitin-specific-processing protease DUB-1) | Usp17la Dub-1 Dub1 | Q61068 | 3 |
| Ubiquitin carboxyl-terminal hydrolase BAP1 (EC 3.4.19.12) (BRCA1-associated protein 1) (Ubiquitin C-terminal hydrolase X4) (UCH-X4) | Bap1 Kiaa0272 | Q99PU7 | 3 |
| Ubiquitin-40S ribosomal protein S27a (Ubiquitin carboxyl extension protein 80) [Cleaved into: Ubiquitin; 40S ribosomal protein S27a] | Rps27a Uba80 Ubcep1 | P62983 | 3 |
| Ubiquitin-associated domain-containing protein 2 (UBA domain-containing protein 2) (Phosphoglycerate dehydrogenase-like protein 1) | Ubac2 Phgdhl1 | Q8R1K1 | 3 |
| Ubiquitin-conjugating enzyme E2 E1 (EC 6.3.2.19) (UbcM3) (Ubiquitin carrier protein E1) (Ubiquitin-protein ligase E1) | Ube2e1 Ubce5 Ubcm3 | P52482 | 3 |
| Ubiquitin-conjugating enzyme E2 H (EC 6.3.2.19) (UBCH2) (Ubiquitin carrier protein H) (Ubiquitin-conjugating enzyme E2-20K) (Ubiquitin-protein ligase H) | Ube2h | P62257 | 3 |
| Ubiquitin-conjugating enzyme E2 R1 (EC 6.3.2.19) (Ubiquitin-conjugating enzyme E2-32 kDa complementing) (Ubiquitin-conjugating enzyme E2-CDC34) (Ubiquitin-protein ligase R1) | Cdc34 Ubch3 Ube2r1 | Q8CFI2 | 3 |
| Ubiquitin-conjugating enzyme E2 variant 1 (UEV-1) (CROC-1) | Ube2v1 Croc1 | Q9CZY3 | 3 |
| Ubiquitin-fold modifier 1 | Ufm1 | P61961 | 3 |
| Ubiquitin-like protein ATG12 (Autophagy-related protein 12) (APG12-like) | Atg12 Apg12 Apg12l | Q9CQY1 | 3 |
| UBX domain-containing protein 4 (Erasin) (UBX domain-containing protein 2) | Ubxn4 Ubxd2 Ubxdc1 | Q8VCH8 | 3 |
| UDP-GlcNAc:betaGal beta-1,3-N-acetylglucosaminyltransferase 3 (BGnT-3) (Beta-1,3-Gn-T3) (Beta-1,3-N-acetylglucosaminyltransferase 3) (Beta3Gn-T3) (EC 2.4.1.-) (Core 1 extending beta-1,3-N-acetylglucosaminyltransferase) (Core1-beta3GlcNAcT) | B3gnt3 | Q5JCS9 | 3 |
| UDP-glucuronic acid decarboxylase 1 (EC 4.1.1.35) (UDP-glucuronate decarboxylase 1) (UGD) (UXS-1) | Uxs1 | Q91XL3 | 3 |
| UDP-N-acetyl-alpha-D-galactosamine:polypeptide N-acetylgalactosaminyltransferase 20 | Galntl6 | E5D8G1 | 3 |
| UDP-N-acetylglucosamine transporter (Golgi UDP-GlcNAc transporter) (Solute carrier family 35 member A3) | Slc35a3 | Q8R1T4 | 3 |
| Uncharacterized aarF domain-containing protein kinase 2 (EC 2.7.11.-) | Adck2 | Q6NSR3 | 3 |
| Uncharacterized protein C11orf84 homolog | 0 | Q05AH6 | 3 |
| Uncharacterized protein C14orf28 homolog | Gm527 | Q4KL13 | 3 |
| Uncharacterized protein C15orf62 homolog, mitochondrial | Gm14137 | Q8CE97 | 3 |
| Uncharacterized protein C16orf74 homolog | 0 | Q8K1L6 | 3 |
| Uncharacterized protein C17orf59 homolog | 0 | Q9D6W8 | 3 |
| Uncharacterized protein C17orf85 homolog | 0 | Q8BZR9 | 3 |
| Uncharacterized protein C19orf43 homolog | 0 | Q9D735 | 3 |
| Uncharacterized protein C1orf146 homolog | 0 | Q3KQP7 | 3 |
| Uncharacterized protein C1orf194 homolog | 0 | Q9DAD0 | 3 |
| Uncharacterized protein C1orf51 homolog | Gm129 | Q3TQ03 | 3 |
| Uncharacterized protein C2orf78 homolog | Gm5592 | Q3V0A6 | 3 |
| Uncharacterized protein C3orf20 homolog | 0 | Q8CDN1 | 3 |
| Uncharacterized protein C3orf22 homolog | 0 | Q8C5S3 | 3 |
| Uncharacterized protein C7orf63 homolog | 0 | Q8BH53 | 3 |
| Uncharacterized protein CXorf65 homolog | Gm614 | Q3V2K1 | 3 |
| Uncharacterized protein KIAA0556 | Kiaa0556 | Q8C753 | 3 |
| Uncharacterized protein KIAA1841 | Kiaa1841 | Q68FF0 | 3 |
| Unconventional myosin-Ib (MIH-L) (Myosin I alpha) (MMI-alpha) (MMIa) | Myo1b | P46735 | 3 |
| Unconventional prefoldin RPB5 interactor (Protein NNX3) (Protein phosphatase 1 regulatory subunit 19) (RNA polymerase II subunit 5-mediating protein) (RPB5-mediating protein) | Uri1 Nnx3 Ppp1r19 Rmp Uri | Q3TLD5 | 3 |
| UPF0235 protein C15orf40 homolog | 0 | Q9CRC3 | 3 |
| UPF0369 protein C6orf57 homolog | 0 | Q8BTE0 | 3 |
| UPF0420 protein C16orf58 homolog | 0 | Q91W34 | 3 |
| UPF0524 protein C3orf70 homolog | 0 | Q6GQU0 | 3 |
| UPF0562 protein C7orf55 homolog | 0 | Q9CR13 | 3 |
| UPF0568 protein C14orf166 homolog | 0 | Q9CQE8 | 3 |
| UPF0574 protein C9orf169 homolog | 0 | Q9D1E4 | 3 |
| UPF0668 protein C10orf76 homolog | 0 | Q6PD19 | 3 |
| UPF0687 protein C20orf27 homolog | 0 | Q9D1K7 | 3 |
| UPF0693 protein C10orf32 homolog | 0 | Q9CRC6 | 3 |
| UTP--glucose-1-phosphate uridylyltransferase (EC 2.7.7.9) (UDP-glucose pyrophosphorylase) (UDPGP) (UGPase) | Ugp2 | Q91ZJ5 | 3 |
| V-type proton ATPase 116 kDa subunit a isoform 2 (V-ATPase 116 kDa isoform a2) (Immune suppressor factor J6B7) (ISF) (Lysosomal H(+)-transporting ATPase V0 subunit a2) (ShIF) (Vacuolar proton translocating ATPase 116 kDa subunit a isoform 2) | Atp6v0a2 Atp6n1b Tj6 | P15920 | 3 |
| V-type proton ATPase subunit d 2 (V-ATPase subunit d 2) (Osteoclast-specific vacuolar ATP synthase) (Vacuolar proton pump subunit d 2) | Atp6v0d2 | Q80SY3 | 3 |
| Vacuolar ATPase assembly integral membrane protein VMA21 | Vma21 | Q78T54 | 3 |
| Vacuolar protein sorting-associated protein 29 (EC 3.1.3.3) (Vesicle protein sorting 29) | Vps29 | Q9QZ88 | 3 |
| Vacuolar protein sorting-associated protein 53 homolog | Vps53 | Q8CCB4 | 3 |
| Vacuolar protein sorting-associated protein 54 (Tumor antigen SLP-8p homolog) | Vps54 | Q5SPW0 | 3 |
| Valine--tRNA ligase, mitochondrial (EC 6.1.1.9) (Valyl-tRNA synthetase) (ValRS) | Vars2 Kiaa1885 Vars2l | Q3U2A8 | 3 |