| Identifier | Protein names | Gene names | Cross reference refseq | Length | Species |
| U3IIB8 | Uncharacterized protein; Fragment; | PLAGL1; | NULL | 480 | mallard |
| U3INU8 | Uncharacterized protein; | LOC101796206; | NULL | 277 | mallard |
| U3IPM1 | Uncharacterized protein; Fragment; | TMEM201; | NULL | 650 | mallard |
| U3IQW8 | Uncharacterized protein; Fragment; | LMLN; | NULL | 547 | mallard |
| U3IPC8 | Uncharacterized protein; Fragment; | NULL | NULL | 89 | mallard |
| U3IKJ8 | Uncharacterized protein; Fragment; | LOC101792349; | NULL | 1145 | mallard |
| U3IPM5 | Uncharacterized protein; | LTC4S; | XP_005024341.1; | 150 | mallard |
| U3IPK3 | Uncharacterized protein; Fragment; | C1orf85; | NULL | 121 | mallard |
| U3IR47 | Uncharacterized protein; Fragment; | PCYOX1; | NULL | 455 | mallard |
| U3IHZ2 | Uncharacterized protein; Fragment; | NSUN4; | NULL | 405 | mallard |
| U3IMJ7 | Ubiquitin carboxyl-terminal hydrolase; EC 3.4.19.12; Fragment; | USP20; | NULL | 915 | mallard |
| U3ISL9 | Uncharacterized protein; Fragment; | C18orf54; | NULL | 514 | mallard |
| U3IPL0 | Histone-lysine N-methyltransferase, H3 lysine-79 specific; EC 2.1.1.43; Histone H3-K79 methyltransferase; Fragment; | DOT1L; | NULL | 1706 | mallard |
| U3ISI1 | Uncharacterized protein; Fragment; | NULL | NULL | 737 | mallard |
| U3IVT8 | Uncharacterized protein; Fragment; | NECAB3; | NULL | 358 | mallard |
| U3IU35 | Uncharacterized protein; Fragment; | LOC101796477; | NULL | 125 | mallard |
| U3IRV8 | Uncharacterized protein; | WASF2; | NULL | 497 | mallard |
| U3IW47 | Uncharacterized protein; Fragment; | SCRT2; | NULL | 141 | mallard |
| U3IV47 | Uncharacterized protein; Fragment; | SLC35E3; | NULL | 276 | mallard |
| U3J1Z2 | Uncharacterized protein; Fragment; | CAMLG; | NULL | 282 | mallard |
