| Identifier | Protein names | Gene names | Cross reference refseq | Length | Species |
| K7EDB6 | Uncharacterized protein; | NULL | NULL | 74 | platypus |
| F7DKH1 | Uncharacterized protein; | DMRTC2; | XP_007664048.1; | 385 | platypus |
| K7ECA1 | Uncharacterized protein; | MUC21; | NULL | 490 | platypus |
| K7EB02 | Uncharacterized protein; | LOC103167100; | NULL | 216 | platypus |
| F6RSX9 | Uncharacterized protein; Fragment; | PDP2; | NULL | 535 | platypus |
| F6XAP1 | Uncharacterized protein; | LOC100085655; | NULL | 510 | platypus |
| F6PVX7 | Uncharacterized protein; Fragment; | CLSTN2; | NULL | 910 | platypus |
| A0A088CNJ7 | Monotreme lactation protein; | MLP; | NULL | 359 | platypus |
| F6R087 | Uncharacterized protein; Fragment; | LOC103165055; | NULL | 228 | platypus |
| F6SAZ9 | Uncharacterized protein; | PGGT1B; | NULL | 318 | platypus |
| D0QJ96 | Alpha casein; | CSN1; | NP_001278783.1;XP_007667395.1; | 181 | platypus |
| K7EGZ0 | Uncharacterized protein; | LOC100090768; | NULL | 205 | platypus |
| F6REN4 | Uncharacterized protein; Fragment; | NULL | NULL | 128 | platypus |
| F7BQA7 | Uncharacterized protein; Fragment; | AJAP1; | NULL | 133 | platypus |
| F6PIH9 | Uncharacterized protein; | DUSP4; | NULL | 227 | platypus |
| F6V6T3 | Uncharacterized protein; Fragment; | SPATA20; | NULL | 195 | platypus |
| F7CBS9 | Uncharacterized protein; Fragment; | LOC103165858; | NULL | 169 | platypus |
| F6REW9 | Claudin; Fragment; | CLDN4; | NULL | 207 | platypus |
| K7E755 | Uncharacterized protein; | LOC103165229; | NULL | 133 | platypus |
| F6S3F7 | Uncharacterized protein; Fragment; | LOC103169603; | NULL | 313 | platypus |
