| Identifier | Protein names | Gene names | Cross reference refseq | Length | Species |
| W4ZIZ9 | Uncharacterized protein; | Sp-Lnp; | XP_787084.1; | 392 | sea-urchin |
| W4ZAM6 | Uncharacterized protein; Fragment; | Sp-Hypp_2778; | NULL | 313 | sea-urchin |
| W4ZJ74 | Uncharacterized protein; | NULL | NULL | 57 | sea-urchin |
| W4Z608 | Uncharacterized protein; | NULL | NULL | 267 | sea-urchin |
| W4XCV1 | Uncharacterized protein; | Sp-Unc44_196; | NULL | 681 | sea-urchin |
| W4Z5J5 | Uncharacterized protein; | Sp-Fn3f_17; | NULL | 379 | sea-urchin |
| W4XPJ4 | Uncharacterized protein; | Sp-Slco5a1_1; | NULL | 455 | sea-urchin |
| W4XCK4 | Uncharacterized protein; | NULL | NULL | 155 | sea-urchin |
| W4XD58 | Uncharacterized protein; | Sp-Hypp_1321; | NULL | 399 | sea-urchin |
| W4XCF0 | Uncharacterized protein; Fragment; | NULL | NULL | 54 | sea-urchin |
| W4XC78 | Uncharacterized protein; | Sp-Ccdc5L; | NULL | 372 | sea-urchin |
| W4XLK8 | Mothers against decapentaplegic homolog; MAD homolog; Mothers against DPP homolog; SMAD family member; | Sp-Smad4; | NULL | 775 | sea-urchin |
| W4XKL0 | Uncharacterized protein; | NULL | NULL | 225 | sea-urchin |
| W4XM45 | Uncharacterized protein; | NULL | NULL | 135 | sea-urchin |
| W4XKL4 | Uncharacterized protein; | Sp-Pqbp1; | NULL | 117 | sea-urchin |
| W4XKF0 | Uncharacterized protein; | Sp-Acsf2-2; | NULL | 407 | sea-urchin |
| W4XSL7 | Uncharacterized protein; | Sp-Pc; | NULL | 907 | sea-urchin |
| W4YAR8 | Uncharacterized protein; Fragment; | Sp-Creb3l1; | NULL | 226 | sea-urchin |
| W4XCU6 | Uncharacterized protein; | Sp-Ph4; | NULL | 421 | sea-urchin |
| W4XRZ7 | Uncharacterized protein; Fragment; | NULL | NULL | 63 | sea-urchin |
