| Identifier | Protein names | Gene names | Cross reference refseq | Length | Species |
| U3ILP4 | Uncharacterized protein; Fragment; | SPATA7; | NULL | 511 | mallard |
| U3IMJ3 | Uncharacterized protein; Fragment; | UPRT; | NULL | 121 | mallard |
| U3IJR9 | Uncharacterized protein; Fragment; | NGLY1; | NULL | 632 | mallard |
| U3IKY1 | Uncharacterized protein; Fragment; | CCDC6; | XP_005015661.1; | 380 | mallard |
| U3IN61 | Uncharacterized protein; Fragment; | RBM48; | NULL | 317 | mallard |
| U3IC81 | Uncharacterized protein; Fragment; | TRIM14; | NULL | 373 | mallard |
| U3IK96 | Uncharacterized protein; Fragment; | SLC35F3; | NULL | 396 | mallard |
| U3I9V9 | Fibrinogen alpha chain; Fragment; | FGA; | NULL | 753 | mallard |
| U3IL42 | Uncharacterized protein; | PREPL; | NULL | 707 | mallard |
| U3IMT6 | Uncharacterized protein; | LHFP; | XP_005029951.1; | 200 | mallard |
| U3IRA0 | Uncharacterized protein; Fragment; | MRPL39; | NULL | 337 | mallard |
| U3IN65 | Uncharacterized protein; Fragment; | PLEC; | NULL | 4196 | mallard |
| U3IND1 | Uncharacterized protein; Fragment; | VAT1L; | NULL | 418 | mallard |
| U3IRV4 | Uncharacterized protein; Fragment; | PMF1; | NULL | 69 | mallard |
| K9LGB5 | Adenylosuccinate lyase; ASL; EC 4.3.2.2; Adenylosuccinase; | NULL | NULL | 459 | mallard |
| U3IKM1 | Uncharacterized protein; Fragment; | SMARCE1; | NULL | 412 | mallard |
| U3IIK9 | Insulin-induced gene protein; | INSIG1; | XP_005026074.1; | 257 | mallard |
| U3IU01 | Uncharacterized protein; Fragment; | MESDC1; | NULL | 362 | mallard |
| U3IV16 | Uncharacterized protein; | CRAMP1L; | NULL | 1304 | mallard |
| U3ISG1 | Uncharacterized protein; Fragment; | ASMT; | NULL | 353 | mallard |
