| Identifier | Protein names | Gene names | Cross reference refseq | Length | Species |
| W4XX05 | Uncharacterized protein; | NULL | XP_783221.2; | 396 | sea-urchin |
| W4XVL2 | Uncharacterized protein; Fragment; | NULL | NULL | 63 | sea-urchin |
| W4Z7B1 | Uncharacterized protein; | NULL | NULL | 134 | sea-urchin |
| W4XM19 | Uncharacterized protein; | NULL | NULL | 220 | sea-urchin |
| B2BF81 | Gonadotropin-releasing hormone receptor 2; Uncharacterized protein; | gnrhr2; Sp-gnrhr; | NP_001116992.1; | 434 | sea-urchin |
| W4Y2D0 | Uncharacterized protein; | NULL | NULL | 1305 | sea-urchin |
| H3INM4 | Uncharacterized protein; | NULL | NULL | 215 | sea-urchin |
| W4YK61 | Uncharacterized protein; | NULL | NULL | 67 | sea-urchin |
| H3IMN4 | Uncharacterized protein; | NULL | XP_795024.2; | 128 | sea-urchin |
| Q6VNB6 | SpEchinoidin; Uncharacterized protein; | Sp-EchL2; | NP_999836.1; | 187 | sea-urchin |
| W4XGN2 | Uncharacterized protein; | Sp-MacpfB.0_1; Sp-MacpfB.0; | NULL | 567 | sea-urchin |
| H3IPI3 | Histone H2B; | Sp-EhH2b_47; Sp-EhH2b Sp-EhH2b_1 Sp-EhH2b_10 Sp-EhH2b_11 Sp-EhH2b_14 Sp-EhH2b_15 Sp-EhH2b_16 Sp-EhH2b_18 Sp-EhH2b_2 Sp-EhH2b_20 Sp-EhH2b_21 Sp-EhH2b_22 Sp-EhH2b_23 Sp-EhH2b_24 Sp-EhH2b_26 Sp-EhH2b_29 Sp-EhH2b_30 Sp-EhH2b_33 Sp-EhH2b_34 Sp-EhH2b_35 Sp-EhH2皫?皬 | XP_003730469.1; | 123 | sea-urchin |
| W4ZJT3 | Uncharacterized protein; | NULL | NULL | 520 | sea-urchin |
| H3JPQ4 | Uncharacterized protein; | NULL | XP_003729110.1;XP_003729112.1;XP_003729113.1; | 166 | sea-urchin |
| Q9GSC9 | Goosecoid transcription factor Gsc; Uncharacterized protein; | Sp-Gsc; | NP_999663.1; | 320 | sea-urchin |
| W4ZCN2 | Uncharacterized protein; | NULL | NULL | 225 | sea-urchin |
| W4XRQ5 | Uncharacterized protein; | NULL | NULL | 108 | sea-urchin |
| H3IFY7 | Uncharacterized protein; | NULL | NULL | 120 | sea-urchin |
| H3HW17 | Uncharacterized protein; | Sp-Fhdc1; Sp-Ankib1_1; | NULL | 328 | sea-urchin |
| C0KIF4 | Uncharacterized protein; Vasa; | Sp-Vasa; | NP_001139665.1; | 766 | sea-urchin |
