| Trafficking protein particle complex 8 | Trappc8 | E9PWG2 | 3 |
| Trafficking protein particle complex 8 | Trappc8 | E9PY51 | 3 |
| Trafficking protein particle complex subunit 4 (Synbindin) (TRS23 homolog) | Trappc4 Sbdn | Q9ES56 | 3 |
| Transcription elongation factor SPT6 | Supt6h Kiaa0162 Supt6 | Q62383 | 3 |
| Transcription elongation regulator 1 (Formin-binding protein 28) (FBP 28) (TATA box-binding protein-associated factor 2S) (Transcription factor CA150) (p144) | Tcerg1 Taf2s | Q8CGF7 | 3 |
| Transcription factor BTF3 (Nascent polypeptide-associated complex subunit beta) (NAC-beta) (RNA polymerase B transcription factor 3) | Btf3 | Q64152 | 3 |
| Transcription factor COE2 (Early B-cell factor 2) (EBF-2) (Metencephalon-mesencephalon-olfactory transcription factor 1) (MET-mesencephalon-olfactory TF1) (MET-mesencephalon-olfactory transcription factor 1) (Olf-1/EBF-like 3) (O/E-3) (OE-3) | Ebf2 Coe2 Mmot1 | O08792 | 3 |
| Transcription initiation factor IIB (General transcription factor TFIIB) (RNA polymerase II alpha initiation factor) | Gtf2b | P62915 | 3 |
| Transcription initiation factor TFIID subunit 9 (RNA polymerase II TBP-associated factor subunit G) (Transcription initiation factor TFIID 31 kDa subunit) (TAFII-31) (TAFII31) (Transcription initiation factor TFIID 32 kDa subunit) (TAFII-32) (TAFII32) | Taf9 Taf2g | Q8VI33 | 3 |
| Transcription termination factor 1 (TTF-1) (RNA polymerase I termination factor) (Transcription termination factor I) (TTF-I) (mTFF-I) | Ttf1 | Q62187 | 3 |
| Transcription termination factor 2 (EC 3.6.4.-) (RNA polymerase II termination factor) (Transcription release factor 2) | Ttf2 | Q5NC05 | 3 |
| Transgelin-3 (Neuronal protein NP25) | Tagln3 Np25 | Q9R1Q8 | 3 |
| Transient receptor potential cation channel subfamily M member 7 | Trpm7 | A2AI57 | 3 |
| Translin-associated protein X (Translin-associated factor X) | Tsnax Trax | Q9QZE7 | 3 |
| Translocation protein SEC63 homolog | Sec63 Sec63l | Q8VHE0 | 3 |
| Transmembrane 7 superfamily member 3 (NARP1) | Tm7sf3 | Q9CRG1 | 3 |
| Transmembrane and TPR repeat-containing protein 3 | Tmtc3 | Q8BRH0 | 3 |
| Transmembrane channel-like protein 6 | Tmc6 | Q7TN60 | 3 |
| Transmembrane gamma-carboxyglutamic acid protein 4 (Proline-rich gamma-carboxyglutamic acid protein 4) (Proline-rich Gla protein 4) | Prrg4 Prgp4 Tmg4 | Q8BGN6 | 3 |
| Transmembrane p24-trafficking protein 7 | Tmed7 | E9Q7G1 | 3 |
| Transmembrane protein 106A | Tmem106a | Q8VC04 | 3 |
| Transmembrane protein 120A (Transmembrane protein induced by tumor necrosis factor alpha) | Tmem120a Net29 Tmpit | Q8C1E7 | 3 |
| Transmembrane protein 126A | Tmem126a | Q9D8Y1 | 3 |
| Transmembrane protein 222 | Tmem222 D4Ertd196e | Q8BVA2 | 3 |
| Transmembrane protein 268 (Fragment) | Tmem268 6330416G13Rik | Z4YMT7 | 3 |
| Transmembrane protein 51 | Tmem51 | Q99LG1 | 3 |
| Transmembrane protein 87A | Tmem87a | Q8BXN9 | 3 |
| TRIO and F-actin-binding protein | Triobp | E9QMQ3 | 3 |
| TRIO and F-actin-binding protein (Protein Tara) (Trio-associated repeat on actin) | Triobp Kiaa1662 Tara | Q99KW3 | 3 |
| Triokinase/FMN cyclase (Bifunctional ATP-dependent dihydroxyacetone kinase/FAD-AMP lyase (cyclizing)) [Includes: ATP-dependent dihydroxyacetone kinase (DHA kinase) (EC 2.7.1.28) (EC 2.7.1.29) (Glycerone kinase) (Triokinase) (Triose kinase); FAD-AMP lyase (cyclizing) (EC 4.6.1.15) (FAD-AMP lyase (cyclic FMN forming)) (FMN cyclase)] | Tkfc Dak | Q8VC30 | 3 |
| Tripartite motif-containing protein 14 (PU.1-binding protein) | Trim14 Kiaa0129 Pub | Q8BVW3 | 3 |
| TRMT1-like protein (EC 2.1.1.-) | Trmt1l | A2RSY6 | 3 |
| 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 | 3 |
| tRNA (guanine-N(7)-)-methyltransferase non-catalytic subunit WDR4 (WD repeat-containing protein 4) | Wdr4 | Q9EP82 | 3 |
| tRNA pseudouridine synthase A, mitochondrial (EC 5.4.99.12) (tRNA pseudouridine(38-40) synthase) (tRNA pseudouridylate synthase I) (tRNA-uridine isomerase I) | Pus1 MNCb-0873 | Q9WU56 | 3 |
| Tropomyosin alpha-1 chain | Tpm1 | E9Q450 | 3 |
| Tropomyosin beta chain | Tpm2 | A2AIM4 | 3 |
| Tubulin alpha chain (Fragment) | Tuba4a | A0A0A0MQA5 | 3 |
| Tubulin-folding cofactor B (Cytoskeleton-associated protein 1) (Cytoskeleton-associated protein CKAPI) (Tubulin-specific chaperone B) | Tbcb Ckap1 | Q9D1E6 | 3 |
| Tubulin-specific chaperone E (Tubulin-folding cofactor E) | Tbce | Q8CIV8 | 3 |
| 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 | 3 |
| Tumor necrosis factor receptor superfamily member 22 (Decoy TRAIL receptor 2) (TNF receptor family member SOBa) (TNF receptor homolog 2) (Tumor necrosis factor receptor p60 homolog 2) | Tnfrsf22 Dctrailr2 Tnfrh2 Tnfrsf1al2 | Q9ER62 | 3 |
| Tumor necrosis factor receptor superfamily member 23 (Decoy TRAIL receptor 1) (TNF receptor family member SOB) (TNF receptor homolog 1) (Tumor necrosis factor receptor p60 homolog 1) | Tnfrsf23 Dctrailr1 Tnfrh1 Tnfrsf1al1 | Q9ER63 | 3 |
| Tumor necrosis factor receptor superfamily member 26 (TNF receptor homolog 3) | Tnfrsf26 Tnfrh3 | P83626 | 3 |
| Tumor necrosis factor receptor superfamily member 5 (B-cell surface antigen CD40) (Bp50) (CD40L receptor) (CD antigen CD40) | Cd40 Tnfrsf5 | P27512 | 3 |
| Tumor protein D54 | Tpd52l2 | A2AUD5 | 3 |
| Type VI collagen alpha 3 subunit | Col6a3 | O88493 | 3 |
| Tyrosine--tRNA ligase (EC 6.1.1.1) (Tyrosyl-tRNA synthetase) | Yars mCG_141662 | A2A7S7 | 3 |
| Tyrosine-protein kinase (EC 2.7.10.2) | Abl2 | B2RQ57 | 3 |
| Tyrosine-protein kinase (EC 2.7.10.2) | Src | F8WI90 | 3 |
| Tyrosine-protein kinase (EC 2.7.10.2) | Jak2 mCG_9104 | G5E852 | 3 |
| Tyrosine-protein phosphatase non-receptor type 9 (EC 3.1.3.48) (Protein-tyrosine phosphatase MEG2) (PTPase MEG2) | Ptpn9 | O35239 | 3 |
| Tyrosine-protein phosphatase non-receptor type substrate 1 | Sirpa | E0CX65 | 3 |
| U3 small nucleolar ribonucleoprotein protein IMP4 (U3 snoRNP protein IMP4) | Imp4 D1Wsu40e | Q8VHZ7 | 3 |
| U3 small nucleolar RNA-associated protein 14 homolog A (Juvenile spermatogonial depletion-like X-linked protein) (Jsd-like X-linked protein) | Utp14a JsdX Kiaa0266 | Q640M1 | 3 |
| U3 small nucleolar RNA-associated protein 4 homolog (Cirhin) (Testis-expressed gene 292 protein) | Utp4 Cirh1a Kiaa1988 Tex292 | Q8R2N2 | 3 |
| U3 small nucleolar RNA-associated protein 6 homolog (Multiple hat domains protein) | Utp6 Mhat | Q8VCY6 | 3 |
| Ubiquilin-1 (Protein linking IAP with cytoskeleton 1) (PLIC-1) | Ubqln1 Plic1 | Q8R317 | 3 |
| Ubiquitin associated protein 2-like, isoform CRA_b (Ubiquitin-associated protein 2-like) | Ubap2l mCG_22226 | A0A0H2UH17 | 3 |
| Ubiquitin carboxyl-terminal hydrolase 14 | Usp14 | E9PYI8 | 3 |
| Ubiquitin carboxyl-terminal hydrolase 16 (EC 3.4.19.12) (Deubiquitinating enzyme 16) (Ubiquitin thioesterase 16) (Ubiquitin-specific-processing protease 16) | Usp16 | Q99LG0 | 3 |
| Ubiquitin carboxyl-terminal hydrolase 19 (EC 3.4.19.12) (Deubiquitinating enzyme 19) (Ubiquitin thioesterase 19) (Ubiquitin-specific-processing protease 19) | Usp19 Kiaa0891 | Q3UJD6 | 3 |
| Ubiquitin carboxyl-terminal hydrolase 34 (EC 3.4.19.12) (Deubiquitinating enzyme 34) (Ubiquitin thioesterase 34) (Ubiquitin-specific-processing protease 34) | Usp34 Kiaa0570 Murr2 | Q6ZQ93 | 3 |
| Ubiquitin carboxyl-terminal hydrolase 46 | Usp46 | D3YVU0 | 3 |
| Ubiquitin recognition factor in ER-associated degradation protein 1 (Ubiquitin fusion degradation protein 1 homolog) (UB fusion protein 1) | Ufd1 Ufd1l | P70362 | 3 |
| Ubiquitin-associated protein 1 (UBAP-1) | Ubap1 | Q8BH48 | 3 |
| Ubiquitin-conjugating enzyme E2 C | Ube2c | A2A4Z1 | 3 |
| Ubiquitin-conjugating enzyme E2 H (EC 2.3.2.23) ((E3-independent) E2 ubiquitin-conjugating enzyme H) (EC 2.3.2.24) (E2 ubiquitin-conjugating enzyme H) (UBCH2) (Ubiquitin carrier protein H) (Ubiquitin-conjugating enzyme E2-20K) (Ubiquitin-protein ligase H) | Ube2h | P62257 | 3 |
| Ubiquitin-like modifier-activating enzyme 1 Y (EC 6.2.1.45) (Ubiquitin-activating enzyme E1) (Ubiquitin-activating enzyme E1 Y) | Uba1y Sby Ube1ay Ube1y Ube1y1 | P31254 | 3 |
| Ubiquitin-like modifier-activating enzyme 5 (Ubiquitin-activating enzyme 5) (UFM1-activating enzyme) (Ubiquitin-activating enzyme E1 domain-containing protein 1) | Uba5 Ube1dc1 | Q8VE47 | 3 |
| Ubiquitin-like modifier-activating enzyme 6 | Uba6 | D3Z061 | 3 |
| UBX domain-containing protein 6 (UBX domain-containing protein 1) | Ubxn6 Ubxd1 Ubxdc2 | Q99PL6 | 3 |
| UHRF1 (ICBP90)-binding protein 1 | Uhrf1bp1 | B2KF50 | 3 |
| Uncharacterized protein | Tpm3-rs7 | D3Z2H9 | 3 |
| Uncharacterized protein | Gm10260 Gm17352 | F6YVP7 | 3 |
| Uncharacterized protein | Gm9242 | J3QNY1 | 3 |
| Uncharacterized protein | Gm10036 | E9PYL9 | 3 |
| Uncharacterized protein | Gm20547 C2 | B8JJN0 | 3 |
| Uridine phosphorylase (EC 2.4.2.3) | Upp2 | Q8R093 | 3 |
| Uridine phosphorylase 1 (UPase 1) (UrdPase 1) (EC 2.4.2.3) | Upp1 Up Upp | P52624 | 3 |
| Uteroglobin (Clara cell 17 kDa protein) (Clara cell phospholipid-binding protein) (CCPBP) (Clara cells 10 kDa secretory protein) (CC10) (PCB-binding protein) (Secretoglobin family 1A member 1) | Scgb1a1 Cc10 Ugb Utg | Q06318 | 3 |
| Vacuolar protein sorting-associated protein 16 homolog (mVPS16) | Vps16 | Q920Q4 | 3 |
| Vacuolar protein sorting-associated protein 53 homolog | Vps53 | E9PXG9 | 3 |
| Vang-like protein 1 | Vangl1 | A0A0H2UH25 | 3 |
| Vascular cell adhesion protein 1 | Vcam1 | Q3UPN1 | 3 |
| Vascular cell adhesion protein 1 (V-CAM 1) (VCAM-1) (CD antigen CD106) | Vcam1 Vcam-1 | P29533 | 3 |
| Vascular endothelial growth factor receptor 3 (VEGFR-3) (EC 2.7.10.1) (Fms-like tyrosine kinase 4) (FLT-4) (Tyrosine-protein kinase receptor FLT4) | Flt4 Flt-4 Vegfr3 | P35917 | 3 |
| Vasorin (Protein slit-like 2) | Vasn Slitl2 | Q9CZT5 | 3 |
| Vesicle transport through interaction with t-SNAREs homolog 1A (Vesicle transport v-SNARE protein Vti1-like 2) (Vti1-rp2) | Vti1a Vti1 Vti1l2 | O89116 | 3 |
| Vesicle-associated membrane protein 2 | Vamp2 | B0QZN5 | 3 |
| Vesicle-associated membrane protein 4 (VAMP-4) | Vamp4 | O70480 | 3 |
| Vesicle-associated membrane protein 8 (Vesicle-associated membrane protein 8, isoform CRA_b) | Vamp8 mCG_129303 | A0A0R4J0R1 | 3 |
| Vomeromodulin (BPI fold-containing family B member 9A) | Bpifb9a | Q80XI7 | 3 |
| WAS/WASL-interacting protein family member 2 (WASP-interacting protein-related protein) (WIP-related protein) | Wipf2 Wire | Q6PEV3 | 3 |
| WD repeat domain phosphoinositide-interacting protein 3 (WIPI-3) (WD repeat-containing protein 45-like) (WDR45-like protein) (WD repeat-containing protein 45B) | Wdr45b Wdr45l Wipi3 | Q9CR39 | 3 |
| WD repeat-containing protein 26 | Wdr26 | E0CYH4 | 3 |
| WD repeat-containing protein 73 | Wdr73 | Q9CWR1 | 3 |
| WD repeat-containing protein 81 (Fragment) | Wdr81 | K4DI77 | 3 |
| X-ray repair cross-complementing protein 5 (EC 3.6.4.-) (ATP-dependent DNA helicase 2 subunit 2) (ATP-dependent DNA helicase II 80 kDa subunit) (CTC box-binding factor 85 kDa subunit) (CTC85) (CTCBF) (DNA repair protein XRCC5) (Ku autoantigen protein p86 homolog) (Ku80) (Nuclear factor IV) | Xrcc5 G22p2 | P27641 | 3 |
| Xenotropic and polytropic retrovirus receptor 1 | Xpr1 | D3Z2B4 | 3 |