| Ubiquitin thioesterase (EC 3.4.19.12) | OTUB1 | J3KR44 | 3 |
| Ubiquitin-conjugating enzyme E2 D4 (EC 2.3.2.23) (E2 ubiquitin-conjugating enzyme D4) (HBUCE1) (Ubiquitin carrier protein D4) (Ubiquitin-protein ligase D4) | UBE2D4 UBCH5D | Q9Y2X8 | 3 |
| Ubiquitin-like protein FUBI | FAU | P35544 | 3 |
| Ubiquitin-related modifier 1 | URM1 C9orf74 | Q9BTM9 | 3 |
| UNC93-like protein MFSD11 (Major facilitator superfamily domain-containing protein 11) (Protein ET) | MFSD11 ET | O43934 | 3 |
| Uncharacterized protein | DKFZp686E23209 | Q68CN4 | 3 |
| Uncharacterized protein | 0 | Q6DHW4 | 3 |
| Uncharacterized protein | 0 | Q7Z3Y4 | 3 |
| Uncharacterized protein | 0 | F6X3S4 | 3 |
| Uncharacterized protein | 0 | M0QZK8 | 3 |
| Uncharacterized protein | 0 | E9PAM4 | 3 |
| Uncharacterized protein | 0 | F8W810 | 3 |
| Uncharacterized protein | 0 | A0A0B4J2A0 | 3 |
| Uncharacterized protein | 0 | F2Z2F3 | 3 |
| Uncharacterized protein (Fragment) | 0 | I3L4J1 | 3 |
| Uncharacterized protein (Fragment) | 0 | H7C2Y5 | 3 |
| Uncharacterized protein C10orf35 | C10orf35 | Q96D05 | 3 |
| Uncharacterized protein C10orf88 | C10orf88 | Q9H8K7 | 3 |
| Uncharacterized protein C11orf84 | C11orf84 | Q9BUA3 | 3 |
| Uncharacterized protein C11orf98 | C11orf98 | E9PRG8 | 3 |
| Uncharacterized protein C12orf43 | C12orf43 | Q96C57 | 3 |
| Uncharacterized protein C15orf52 | C15orf52 | Q6ZUT6 | 3 |
| Uncharacterized protein C16orf45 | C16orf45 | Q96MC5 | 3 |
| Uncharacterized protein C17orf80 (Cell migration-inducing gene 3 protein) (Human lung cancer oncogene 8 protein) (HLC-8) | C17orf80 HLC8 MIG3 | Q9BSJ5 | 3 |
| Uncharacterized protein C18orf63 | C18orf63 | Q68DL7 | 3 |
| Uncharacterized protein C19orf57 (Pre-T/NK cell-associated protein 3B3) | C19orf57 | Q0VDD7 | 3 |
| Uncharacterized protein C2orf16 | C2orf16 | Q68DN1 | 3 |
| Uncharacterized protein C2orf54 | C2orf54 | Q08AI8 | 3 |
| Uncharacterized protein C4orf17 | C4orf17 | Q53FE4 | 3 |
| Uncharacterized protein C6orf163 | C6orf163 | Q5TEZ5 | 3 |
| Uncharacterized protein C7orf26 | C7orf26 | Q96N11 | 3 |
| Up-regulator of cell proliferation (HBV X protein up-regulated gene 4 protein) (HBxAg up-regulated gene 4 protein) | URGCP KIAA1507 URG4 | Q8TCY9 | 3 |
| UPF0183 protein C16orf70 | C16orf70 C16orf6 | Q9BSU1 | 3 |
| UPF0317 protein C14orf159, mitochondrial | C14orf159 UNQ2439/PRO5000 | Q7Z3D6 | 3 |
| UPF0489 protein C5orf22 | C5orf22 | Q49AR2 | 3 |
| UPF0598 protein C8orf82 (Fragment) | C8orf82 | H0YF29 | 3 |
| UPF0669 protein C6orf120 | C6orf120 | Q7Z4R8 | 3 |
| Uridine diphospho-glucose dehydrogenase (EC 1.1.1.22) (Fragment) | GDH | Q9NQ81 | 3 |
| Uromodulin (Tamm-Horsfall urinary glycoprotein) (THP) [Cleaved into: Uromodulin, secreted form] | UMOD | E9PEA4 | 3 |
| Usherin (Usher syndrome type IIa protein) (Usher syndrome type-2A protein) | USH2A | O75445 | 3 |
| Uveal autoantigen with coiled-coil domains and ankyrin repeats | UACA | B7ZKM6 | 3 |
| Uveal autoantigen with coiled-coil domains and ankyrin repeats | UACA | F5H2B9 | 3 |
| V-set and transmembrane domain-containing protein 2-like protein | VSTM2L C20orf102 | Q96N03 | 3 |
| V-set and transmembrane domain-containing protein 2A | VSTM2A VSTM2 | Q8TAG5 | 3 |
| V-type proton ATPase subunit B, kidney isoform | ATP6V1B1 | C9JL73 | 3 |
| V-type proton ATPase subunit d 1 | ATP6V0D1 | F5GYQ1 | 3 |
| V-type proton ATPase subunit S1 (V-ATPase subunit S1) (Protein XAP-3) (V-ATPase Ac45 subunit) (V-ATPase S1 accessory protein) (Vacuolar proton pump subunit S1) | ATP6AP1 ATP6IP1 ATP6S1 VATPS1 XAP3 | Q9H0C7 | 3 |
| Vacuolar protein sorting-associated protein 26A | VPS26A | S4R3Q6 | 3 |
| Vacuolar protein sorting-associated protein 37B (Fragment) | VPS37B | F5H1F6 | 3 |
| Vacuolar protein sorting-associated protein 37C (Fragment) | VPS37C | F5H4Q5 | 3 |
| Vacuolar proton pump subunit SFD alpha isoform | 0 | Q8TF11 | 3 |
| Vascular endothelial growth factor C (VEGF-C) (Flt4 ligand) (Flt4-L) (Vascular endothelial growth factor-related protein) (VRP) | VEGFC | P49767 | 3 |
| Versican core protein (Fragment) | VCAN | D6RGZ6 | 3 |
| Very long-chain-specific acyl-CoA dehydrogenase, mitochondrial (Fragment) | ACADVL | G3V1M7 | 3 |
| Very-long-chain (3R)-3-hydroxyacyl-CoA dehydratase 4 (EC 4.2.1.134) (3-hydroxyacyl-CoA dehydratase 4) (HACD4) (Protein-tyrosine phosphatase-like A domain-containing protein 2) | HACD4 PTPLAD2 | Q5VWC8 | 3 |
| Vesicle transport-related protein isoform a variant (Fragment) | 0 | Q53GW1 | 3 |
| Vesicle-associated membrane protein 2 | VAMP2 | F8WCA0 | 3 |
| Vesicle-associated membrane protein 2 | VAMP2 | J3QRU4 | 3 |
| Vesicle-associated membrane protein 2 | VAMP2 | K7ENK9 | 3 |
| Vesicle-associated membrane protein 8 | VAMP8 | C9JXZ5 | 3 |
| Vimentin (Vimentin variant 4) | VIM | B0YJC5 | 3 |
| Voltage-dependent L-type calcium channel subunit alpha-1C (Calcium channel, L type, alpha-1 polypeptide, isoform 1, cardiac muscle) (Voltage-gated calcium channel subunit alpha Cav1.2) | CACNA1C CACH2 CACN2 CACNL1A1 CCHL1A1 | Q13936 | 3 |
| Voltage-gated potassium channel subunit beta-3 (K(+) channel subunit beta-3) (Kv-beta-3) | KCNAB3 KCNA3B | O43448 | 3 |
| von Willebrand factor A domain-containing protein 3B (VWA domain-containing protein 3B) | VWA3B | Q502W6 | 3 |
| VPS10 domain-containing receptor SorCS2 | SORCS2 | B5MED8 | 3 |
| WD repeat and SOCS box-containing protein 1 (WSB-1) (SOCS box-containing WD protein SWiP-1) | WSB1 SWIP1 | Q9Y6I7 | 3 |
| WD repeat-containing protein 54 | WDR54 | Q9H977 | 3 |
| WD repeat-containing protein 60 | WDR60 | Q8WVS4 | 3 |
| Wee1-like protein kinase (WEE1hu) (EC 2.7.10.2) (Wee1A kinase) | WEE1 | P30291 | 3 |
| Werner syndrome ATP-dependent helicase (EC 3.6.4.12) (DNA helicase, RecQ-like type 3) (RecQ3) (Exonuclease WRN) (EC 3.1.-.-) (RecQ protein-like 2) | WRN RECQ3 RECQL2 | Q14191 | 3 |
| Wnt inhibitory factor 1 (WIF-1) | WIF1 UNQ191/PRO217 | Q9Y5W5 | 3 |
| WNT1-inducible-signaling pathway protein 1 (WISP-1) (CCN family member 4) (Wnt-1-induced secreted protein) | WISP1 CCN4 | O95388 | 3 |
| X-linked retinitis pigmentosa GTPase regulator | RPGR RP3 XLRP3 | Q92834 | 3 |
| X-prolyl aminopeptidase (Aminopeptidase P) 2, membrane-bound | XPNPEP2 | B7ZLM6 | 3 |
| X-ray repair cross-complementing protein 5 (Fragment) | XRCC5 | C9JZ81 | 3 |
| X-ray repair cross-complementing protein 6 | XRCC6 | B1AHC9 | 3 |
| YKT6 v-SNARE protein | YKT6 | B5BU81 | 3 |
| Zinc finger and BTB domain-containing protein 4 (KAISO-like zinc finger protein 1) (KAISO-L1) | ZBTB4 KIAA1538 | Q9P1Z0 | 3 |
| Zinc finger and BTB domain-containing protein 46 (BTB-ZF protein expressed in effector lymphocytes) (BZEL) (BTB/POZ domain-containing protein 4) (Zinc finger protein 340) | ZBTB46 BTBD4 ZNF340 | Q86UZ6 | 3 |
| Zinc finger CCCH domain-containing protein 4 (Fragment) | ZC3H4 | M0QY97 | 3 |
| Zinc finger CCHC domain-containing protein 2 | ZCCHC2 KIAA1744 | Q9C0B9 | 3 |
| Zinc finger homeobox protein 2 (Zinc finger homeodomain protein 2) (ZFH-2) | ZFHX2 KIAA1056 KIAA1762 ZNF409 | Q9C0A1 | 3 |
| Zinc finger MYM-type protein 3 | ZMYM3 | A6NHN7 | 3 |
| Zinc finger protein 142 (HA4654) | ZNF142 KIAA0236 | P52746 | 3 |
| Zinc finger protein 148 (Transcription factor ZBP-89) (Zinc finger DNA-binding protein 89) | ZNF148 ZBP89 | Q9UQR1 | 3 |
| Zinc finger protein 154 | ZNF154 KIAA2003 | Q13106 | 3 |
| Zinc finger protein 208 (Zinc finger protein 91-like) | ZNF208 ZNF91L | O43345 | 3 |
| Zinc finger protein 239 (Zinc finger protein HOK-2) (Zinc finger protein MOK-2) | ZNF239 HOK2 MOK2 | Q16600 | 3 |
| Zinc finger protein 280C (Suppressor of hairy wing homolog 3) (Zinc finger protein 633) | ZNF280C SUHW3 ZNF633 | Q8ND82 | 3 |
| Zinc finger protein 281 (GC-box-binding zinc finger protein 1) (Transcription factor ZBP-99) (Zinc finger DNA-binding protein 99) | ZNF281 GZP1 ZBP99 | Q9Y2X9 | 3 |
| Zinc finger protein 362 | ZNF362 PP6997 | Q5T0B9 | 3 |
| Zinc finger protein 385B (Zinc finger protein 533) | ZNF385B ZNF533 | Q569K4 | 3 |
| Zinc finger protein 40 (Cirhin interaction protein) (CIRIP) (Gate keeper of apoptosis-activating protein) (GAAP) (Human immunodeficiency virus type I enhancer-binding protein 1) (HIV-EP1) (Major histocompatibility complex-binding protein 1) (MBP-1) (Positive regulatory domain II-binding factor 1) (PRDII-BF1) | HIVEP1 ZNF40 | P15822 | 3 |
| Zinc finger protein 407 | ZNF407 KIAA1703 | Q9C0G0 | 3 |
| Zinc finger protein 418 | ZNF418 KIAA1956 | Q8TF45 | 3 |
| Zinc finger protein 425 | ZNF425 | Q6IV72 | 3 |
| Zinc finger protein 426 | ZNF426 | Q9BUY5 | 3 |
| Zinc finger protein 518B | ZNF518B KIAA1729 | Q9C0D4 | 3 |
| Zinc finger protein 579 | ZNF579 | Q8NAF0 | 3 |
| Zinc finger protein 644 (Zinc finger motif enhancer-binding protein 2) (Zep-2) | ZNF644 KIAA1221 ZEP2 | Q9H582 | 3 |