| Identifier | Protein names | Gene names | Cross reference refseq | Length | Species |
| U3IMC1 | Uncharacterized protein; Fragment; | NULL | NULL | 325 | mallard |
| U3IQB5 | Uncharacterized protein; | LOC101794669; | XP_005016130.1; | 188 | mallard |
| U3IS51 | Uncharacterized protein; Fragment; | TMEM30C; | NULL | 335 | mallard |
| U3IS67 | Uncharacterized protein; Fragment; | CCDC174; | NULL | 460 | mallard |
| U3IB07 | V-type proton ATPase subunit a; | ATP6V0A4; | XP_005021567.1;XP_005021568.1; | 840 | mallard |
| U3ICA5 | Uncharacterized protein; Fragment; | CAMK1D; | NULL | 302 | mallard |
| U3IS90 | Uncharacterized protein; Fragment; | SEC11C; | NULL | 174 | mallard |
| U3IFT4 | Uncharacterized protein; Fragment; | CDK14; | NULL | 444 | mallard |
| U3ITE4 | Uncharacterized protein; Fragment; | SCD5; | NULL | 305 | mallard |
| U3IPP4 | Uncharacterized protein; Fragment; | HEPACAM2; | NULL | 451 | mallard |
| U3IT74 | Uncharacterized protein; Fragment; | LEKR1; | NULL | 314 | mallard |
| U3ISI4 | Uncharacterized protein; Fragment; | CNTN1; | NULL | 810 | mallard |
| U3IX31 | Uncharacterized protein; | LNP1; | NULL | 203 | mallard |
| U3ITN1 | Uncharacterized protein; Fragment; | UBE2D1; | NULL | 140 | mallard |
| U3IWL7 | Uncharacterized protein; Fragment; | LOC101799721; | NULL | 386 | mallard |
| U3I864 | Uncharacterized protein; Fragment; | NRXN1; | NULL | 1357 | mallard |
| U3IT84 | Uncharacterized protein; Fragment; | GRHPR; | NULL | 233 | mallard |
| U3ITM0 | Uncharacterized protein; Fragment; | TBC1D23; | NULL | 700 | mallard |
| U3IVE7 | Uncharacterized protein; Fragment; | DDX27; | NULL | 743 | mallard |
| U3INR1 | Uncharacterized protein; | KANSL1; | NULL | 1105 | mallard |
