| Identifier | Protein names | Gene names | Cross reference refseq | Length | Species |
| U3J4A6 | Uncharacterized protein; | CUEDC2; | NULL | 280 | mallard |
| U3IUJ7 | Uncharacterized protein; Fragment; | CCNDBP1; | NULL | 293 | mallard |
| U3J2X4 | Kynurenine 3-monooxygenase; EC 1.14.13.9; Kynurenine 3-hydroxylase; | KMO; | NULL | 485 | mallard |
| U3IZV0 | Uncharacterized protein; | SERPINB1; | NULL | 199 | mallard |
| U3IX55 | Uncharacterized protein; | EPS8; | XP_005017140.1; | 828 | mallard |
| U3J448 | Uncharacterized protein; Fragment; | TMEM183A; | NULL | 335 | mallard |
| U3J843 | Uncharacterized protein; Fragment; | PAPPA2; | NULL | 1333 | mallard |
| U3IUG3 | Uncharacterized protein; Fragment; | ZNF585A; | NULL | 389 | mallard |
| U3ISC0 | Uncharacterized protein; Fragment; | LAMA1; | NULL | 3074 | mallard |
| U3J6L1 | Uncharacterized protein; Fragment; | PLEKHG5; | NULL | 738 | mallard |
| U3I4W6 | Uncharacterized protein; Fragment; | VWA3A; | NULL | 1133 | mallard |
| V9HXJ1 | MHC class I antigen heavy chain; Fragment; | NULL | NULL | 346 | mallard |
| U3I5Q6 | Uncharacterized protein; Fragment; | YIPF3; | NULL | 343 | mallard |
| U3I157 | NAD(P)(+)--arginine ADP-ribosyltransferase; EC 2.4.2.31; Mono(ADP-ribosyl)transferase; Fragment; | LOC101803400; | NULL | 128 | mallard |
| U3I543 | Uncharacterized protein; Fragment; | LOC101799263; | NULL | 462 | mallard |
| U3I045 | Uncharacterized protein; Fragment; | LOC101801846; | NULL | 110 | mallard |
| U3J1L3 | Uncharacterized protein; Fragment; | WIZ; | NULL | 641 | mallard |
| U3J8N4 | Uncharacterized protein; | PPP1R42; | NULL | 296 | mallard |
| U3IAK7 | Uncharacterized protein; Fragment; | GABRR3; | NULL | 460 | mallard |
| U3I6C3 | Uncharacterized protein; Fragment; | TMEM97; | NULL | 132 | mallard |
