| Identifier | Protein names | Gene names | Cross reference refseq | Length | Species |
| W4XHS5 | Uncharacterized protein; | Sp-Unk_20; | NULL | 256 | sea-urchin |
| W4XG53 | Uncharacterized protein; | Sp-Ssh_1; | NULL | 1128 | sea-urchin |
| W4XIA0 | Ubiquitin-like protein ATG12; | NULL | XP_787754.1; | 126 | sea-urchin |
| W4XH35 | Uncharacterized protein; | NULL | NULL | 294 | sea-urchin |
| W4XAA2 | Uncharacterized protein; | Sp-Gelslnph; | NULL | 557 | sea-urchin |
| W4XCA4 | Uncharacterized protein; | Sp-Xpf_1; | NULL | 465 | sea-urchin |
| W4XLN4 | Uncharacterized protein; Fragment; | NULL | NULL | 264 | sea-urchin |
| W4XP93 | Uncharacterized protein; | Sp-Z440; | NULL | 621 | sea-urchin |
| W4ZBQ7 | Uncharacterized protein; | Sp-Nfya_1; | NULL | 517 | sea-urchin |
| W4XJ57 | Uncharacterized protein; | NULL | NULL | 282 | sea-urchin |
| W4XIE9 | Uncharacterized protein; Fragment; | Sp-Cog2-2; | XP_781715.3; | 397 | sea-urchin |
| W4XPW8 | Uncharacterized protein; | Sp-Hypp_1581; | NULL | 503 | sea-urchin |
| W4XAC8 | Uncharacterized protein; | Sp-Ubn2; | XP_003730500.1; | 1145 | sea-urchin |
| W4XLX3 | Uncharacterized protein; | Sp-Hnrpl; | NULL | 568 | sea-urchin |
| W4XWR7 | Uncharacterized protein; | Sp-Hypp_1750; | NULL | 377 | sea-urchin |
| W4XSK8 | Uncharacterized protein; | Sp-Ube3c; | NULL | 844 | sea-urchin |
| W4XIP8 | Uncharacterized protein; | Sp-Atp5l_1; | NULL | 60 | sea-urchin |
| W4XS27 | Uncharacterized protein; | NULL | NULL | 200 | sea-urchin |
| W4Y210 | Uncharacterized protein; | Sp-Rbm21L; | NULL | 921 | sea-urchin |
| W4ZDL6 | Uncharacterized protein; | Sp-Uqub; | NULL | 605 | sea-urchin |
