| Identifier | Protein names | Gene names | Cross reference refseq | Length | Species |
| U3INS3 | Uncharacterized protein; Fragment; | UPF1; | NULL | 1054 | mallard |
| U3ID10 | Uncharacterized protein; Fragment; | UBE2E1; | NULL | 205 | mallard |
| U3IEY4 | Uncharacterized protein; Fragment; | NULL | NULL | 453 | mallard |
| U3IF94 | Uncharacterized protein; Fragment; | METTL18; | NULL | 277 | mallard |
| U3IHB2 | Uncharacterized protein; Fragment; | PPA1; | NULL | 262 | mallard |
| U3I519 | Uncharacterized protein; Fragment; | RFX5; | NULL | 137 | mallard |
| U3IBB1 | Uncharacterized protein; Fragment; | CNTNAP4; | NULL | 164 | mallard |
| U3IEB5 | Uncharacterized protein; Fragment; | EWSR1; | NULL | 572 | mallard |
| U3IEJ3 | Uncharacterized protein; Fragment; | RAD17; | NULL | 695 | mallard |
| U3I9T7 | Uncharacterized protein; | LOC101791695; | NULL | 427 | mallard |
| U3IHH2 | Uncharacterized protein; Fragment; | RNMTL1; | NULL | 326 | mallard |
| U3I167 | Uncharacterized protein; Fragment; | NEUROD2; | NULL | 133 | mallard |
| U3IC02 | Uncharacterized protein; Fragment; | DPH7; | NULL | 372 | mallard |
| U3INB1 | Uncharacterized protein; Fragment; | C16orf59; | NULL | 365 | mallard |
| U3IMZ0 | Uncharacterized protein; Fragment; | APP; | NULL | 207 | mallard |
| U3I5L2 | Uncharacterized protein; Fragment; | UNC13A; | NULL | 1189 | mallard |
| U3ID13 | Uncharacterized protein; Fragment; | NULL | NULL | 626 | mallard |
| U3IF57 | Uncharacterized protein; Fragment; | BNIP2; | NULL | 312 | mallard |
| U3IJX6 | Uncharacterized protein; Fragment; | MIF4GD; | NULL | 223 | mallard |
| U3INN5 | Uncharacterized protein; | PACSIN2; | XP_005031019.1; | 485 | mallard |
