| Identifier | Protein names | Gene names | Cross reference refseq | Length | Species | 
| Q42540 | Ubiquitin-conjugating enzyme E2 7; EC 6.3.2.19; Ubiquitin carrier protein 7; Ubiquitin-protein ligase 7; | UBC7; At5g59300; | NP_568902.2; | 166 | arabidopsis | 
| P35131 | Ubiquitin-conjugating enzyme E2 8; EC 6.3.2.19; UBCAT4A; Ubiquitin carrier protein 8; Ubiquitin-conjugating enzyme E2-17 kDa 8; Ubiquitin-protein ligase 8; | UBC8; UBC4A; At5g41700; | NP_001190447.1;NP_568595.2;NP_851114.1;NP_851115.1;NP_851116.1; | 148 | arabidopsis | 
| P35132 | SUMO-conjugating enzyme UBC9; EC 6.3.2.-; UBCAT4B; Ubiquitin carrier protein 9; Ubiquitin-conjugating enzyme E2 9; Ubiquitin-conjugating enzyme E2-17 kDa; Ubiquitin-protein ligase 9; | UBC9; UBC4B; At4g27960; | NP_567791.1;NP_849462.1; | 148 | arabidopsis | 
| Q8W3M6 | Ubiquitin-like domain-containing CTD phosphatase; EC 3.1.3.16; Nuclear proteasome inhibitor UBLCP1; | At4g06599; | NP_849320.1; | 340 | arabidopsis | 
| P93028 | Ubiquitin-activating enzyme E1 1; AtUBA1; Protein MODIFIER OF SNC1 5; | UBA1; MOS5; At2g30110; | NP_565693.1; | 1080 | arabidopsis | 
| P92974 | Ubiquitin-activating enzyme E1 2; AtUBA2; | UBA2; At5g06460; | NP_568168.1; | 1077 | arabidopsis | 
| Q9LF41 | Probable ubiquitin conjugation factor E4; EC 6.3.2.-; Plant U-box protein 1; U-box domain-containing protein 1; Ubiquitin-fusion degradation protein 2-like; UB fusion protein 2-like; | PUB1; UFD2; At5g15400; | NP_568313.2; | 1038 | arabidopsis | 
| Q9FGZ9 | Ubiquitin-like protein 5; | UBL5; At5g42300; | NP_199045.1; | 73 | arabidopsis | 
| Q9ZSB5 | Ubiquitin carboxyl-terminal hydrolase 10; EC 3.4.19.12; Deubiquitinating enzyme 10; AtUBP10; Ubiquitin thioesterase 10; Ubiquitin-specific-processing protease 10; | UBP10; At4g10570; | NP_192795.3; | 923 | arabidopsis | 
| Q9MAQ3 | Putative ubiquitin carboxyl-terminal hydrolase 11; EC 3.4.19.12; Deubiquitinating enzyme 11; AtUBP11; Ubiquitin thioesterase 11; Ubiquitin-specific-processing protease 11; | UBP11; At1g32850; | NP_174562.2; | 892 | arabidopsis | 
| Q9FPT1 | Ubiquitin carboxyl-terminal hydrolase 12; EC 3.4.19.12; Deubiquitinating enzyme 12; AtUBP12; Ubiquitin thioesterase 12; Ubiquitin-specific-processing protease 12; | UBP12; At5g06600; | NP_568171.1;NP_850783.1; | 1116 | arabidopsis | 
| Q84WU2 | Ubiquitin carboxyl-terminal hydrolase 13; EC 3.4.19.12; Deubiquitinating enzyme 13; AtUBP13; Ubiquitin thioesterase 13; Ubiquitin-specific-processing protease 13; | UBP13; At3g11910; | NP_187797.3; | 1115 | arabidopsis | 
| Q8L6Y1 | Ubiquitin carboxyl-terminal hydrolase 14; EC 3.4.19.12; Deubiquitinating enzyme 14; AtUBP14; TITAN-6 protein; Ubiquitin thioesterase 14; Ubiquitin-specific-processing protease 14; | UBP14; TTN6; At3g20630 At3g20625; | NP_566666.2; | 797 | arabidopsis | 
| Q9FPS9 | Ubiquitin carboxyl-terminal hydrolase 15; EC 3.4.19.12; Deubiquitinating enzyme 15; AtUBP15; Ubiquitin thioesterase 15; Ubiquitin-specific-processing protease 15; | UBP15; At1g17110; | NP_564014.1; | 924 | arabidopsis | 
| Q9SB51 | Ubiquitin carboxyl-terminal hydrolase 16; EC 3.4.19.12; Deubiquitinating enzyme 16; AtUBP16; Ubiquitin thioesterase 16; Ubiquitin-specific-processing protease 16; | UBP16; At4g24560; | NP_567705.1; | 1008 | arabidopsis | 
| Q9FKP5 | Ubiquitin carboxyl-terminal hydrolase 17; EC 3.4.19.12; Deubiquitinating enzyme 17; AtUBP17; Ubiquitin thioesterase 17; Ubiquitin-specific-processing protease 17; | UBP17; At5g65450; | NP_201348.1; | 731 | arabidopsis | 
| Q67XW5 | Ubiquitin carboxyl-terminal hydrolase 18; EC 3.4.19.12; Deubiquitinating enzyme 18; AtUBP18; Ubiquitin thioesterase 18; Ubiquitin-specific-processing protease 18; | UBP18; At4g31670; | NP_194895.1; | 631 | arabidopsis | 
| Q9SJA1 | Ubiquitin carboxyl-terminal hydrolase 19; EC 3.4.19.12; Deubiquitinating enzyme 19; AtUBP19; Ubiquitin thioesterase 19; Ubiquitin-specific-processing protease 19; | UBP19; At2g24640; | NP_565576.1; | 672 | arabidopsis | 
| Q9SYG4 | Oligouridylate-binding protein 1A; AtUBP1a; Polyuridylate-binding protein UBP1A; Poly(U)-binding protein UBP1A; | UBP1A; At1g54080; | NP_175810.1; | 426 | arabidopsis | 
| Q9LQI9 | Oligouridylate-binding protein 1B; AtUBP1b; Polyuridylate-binding protein UBP1B; Poly(U)-binding protein UBP1B; | UBP1B; At1g17370; | NP_564018.1; | 419 | arabidopsis | 
