| Identifier | Protein names | Gene names | Cross reference refseq | Length | Species |
| Q9SJM7 | Uridine nucleosidase 1; EC 3.2.2.3; Uridine ribohydrolase 1; | URH1; At2g36310; | NP_565843.1; | 336 | arabidopsis |
| Q8LAC4 | Probable uridine nucleosidase 2; EC 3.2.2.3; Uridine ribohydrolase 2; | URH2; At1g05620; | NP_001117234.1;NP_563745.1; | 322 | arabidopsis |
| O04420 | Uricase; EC 1.7.3.3; Nodulin-35 homolog; Urate oxidase; | At2g26230; | NP_180191.1; | 309 | arabidopsis |
| A0MDQ1 | Ubiquitin-related modifier 1 homolog 1; | URM1-1; At2g45695; | NP_001078064.1; | 101 | arabidopsis |
| B3H7G2 | Ubiquitin-related modifier 1 homolog 2; | URM1-2; At3g61113; | NP_001118872.1; | 99 | arabidopsis |
| Q8LGG8 | Universal stress protein A-like protein; | At3g01520; | NP_566140.1; | 175 | arabidopsis |
| Q9C5I1 | UDP-sugar pyrophosphorylase; AtUSP; EC 2.7.7.64; | USP; At5g52560; | NP_568775.1; | 614 | arabidopsis |
| Q9M223 | Probable U3 small nucleolar RNA-associated protein 11; U3 snoRNA-associated protein 11; | At3g60360; | NP_191595.1; | 228 | arabidopsis |
| Q9FMU5 | U3 small nucleolar RNA-associated protein 18 homolog; | At5g14050; | NP_196909.1; | 546 | arabidopsis |
| O64503 | UDP-galactose/UDP-glucose transporter 1; At-UDP-Glc/GalT; AtUTr1; | UTR1; At2g02810; | NP_565290.1; | 332 | arabidopsis |
| Q29Q28 | UDP-galactose/UDP-glucose transporter 2; AtUTr2; | UTR2; At4g23010; | NP_001078433.1;NP_001190806.1;NP_194032.2; | 345 | arabidopsis |
| Q9M9S6 | UDP-galactose/UDP-glucose transporter 3; AtUTr3; | UTR3; MSS4; At1g14360; | NP_563949.1; | 331 | arabidopsis |
| Q6NMB6 | UDP-galactose/UDP-glucose transporter 5B; AtUTr5B; | At5g59740; | NP_200782.1; | 344 | arabidopsis |
| Q9LDX3 | UDP-galactose/UDP-glucose transporter 4; AtUTr4; | UTR4; At1g12600; | NP_172720.1; | 349 | arabidopsis |
| Q6NM25 | UDP-galactose/UDP-glucose transporter 5; AtUTr5; | UTR5; At3g46180; | NP_190204.2; | 347 | arabidopsis |
| Q9ATY5 | DNA repair protein UVH3; EC 3.1.-.-; ERCC5 homolog; RAD2 homolog; AtRAD2; AtUVH3; AtXPG; UV hypersensitive protein 3; XPG homolog; | UVH3; RAD2 XPG; At3g28030; | NP_566830.1; | 1479 | arabidopsis |
| O48652 | (6-4)DNA photolyase; EC 4.1.99.13; Protein UV repair defective 3; | UVR3; At3g15620; | NP_001030703.1;NP_566520.1; | 556 | arabidopsis |
| Q9FN03 | Ultraviolet-B receptor UVR8; Protein UV-B RESISTANCE 8; RCC1 domain-containing protein UVR8; | UVR8; At5g63860; | NP_201191.1; | 440 | arabidopsis |
| Q9M358 | UV-stimulated scaffold protein A homolog; | At3g61800; | NP_191739.1; | 664 | arabidopsis |
| Q8VZC0 | UDP-glucuronic acid decarboxylase 1; EC 4.1.1.35; UDP-XYL synthase 1; UDP-glucuronate decarboxylase 1; UGD; UXS-1; | UXS1; At3g53520; | NP_190920.3;NP_850694.2; | 435 | arabidopsis |
