| Identifier | Protein names | Gene names | Cross reference refseq | Length | Species |
| W4XJR4 | Uncharacterized protein; | Sp-Z354; | NULL | 294 | sea-urchin |
| W4XCS4 | Uncharacterized protein; | Sp-Hypp_1310; | NULL | 406 | sea-urchin |
| W4XQY2 | Uncharacterized protein; | Sp-Hypp_1608; | NULL | 317 | sea-urchin |
| W4XKR5 | Uncharacterized protein; | Sp-Clect/Fn3_2; | NULL | 555 | sea-urchin |
| W4YAH0 | Uncharacterized protein; | Sp-Hypp_2048; | NULL | 454 | sea-urchin |
| W4XAT0 | Uncharacterized protein; | Sp-Unc44L_3; | NULL | 1406 | sea-urchin |
| W4XR19 | Uncharacterized protein; | Sp-Srcr/Ptpc1; | NULL | 670 | sea-urchin |
| W4XZX9 | Uncharacterized protein; | Sp-Pipox_1; | NULL | 452 | sea-urchin |
| W4XSV8 | Uncharacterized protein; | NULL | NULL | 84 | sea-urchin |
| W4Y0G4 | Uncharacterized protein; | Sp-Mib1L_1; | NULL | 311 | sea-urchin |
| W4XSL5 | Uncharacterized protein; | Sp-Cophs3; | NULL | 269 | sea-urchin |
| W4Y1L3 | Uncharacterized protein; | Sp-Spon2Lf; | NULL | 461 | sea-urchin |
| W4XLJ0 | Uncharacterized protein; | Sp-Mycbp2; | NULL | 3627 | sea-urchin |
| W4XRN0 | Uncharacterized protein; | Sp-RtL_68; | NULL | 896 | sea-urchin |
| W4Y4R1 | Uncharacterized protein; | NULL | NULL | 95 | sea-urchin |
| W4XQM3 | Uncharacterized protein; | Sp-Hspbp1; | NULL | 325 | sea-urchin |
| W4XBU6 | Histone H2B; Fragment; | Sp-EhH2b_3; | NULL | 119 | sea-urchin |
| W4XSR1 | Uncharacterized protein; | Sp-Rps18; | NULL | 163 | sea-urchin |
| W4XLL7 | Uncharacterized protein; | NULL | NULL | 683 | sea-urchin |
| W4Y5Q5 | Uncharacterized protein; | Sp-Slc16a12L_6; | NULL | 396 | sea-urchin |
