| Identifier | Protein names | Gene names | Cross reference refseq | Length | Species |
| W4XW33 | Uncharacterized protein; | NULL | NULL | 128 | sea-urchin |
| W4ZG38 | Uncharacterized protein; | Sp-Ebr1L_8; | NULL | 389 | sea-urchin |
| W4ZGF6 | Uncharacterized protein; | Sp-PppL_155; | NULL | 1791 | sea-urchin |
| W4ZET0 | Uncharacterized protein; | Sp-Fn3f_51; | NULL | 485 | sea-urchin |
| Q8MUL0 | Spicule matrix protein SM29; | NULL | NP_999804.1; | 265 | sea-urchin |
| W4YVH9 | Uncharacterized protein; | NULL | NULL | 245 | sea-urchin |
| A1DXQ9 | Sp185/333; | NULL | NULL | 291 | sea-urchin |
| W4XXI6 | Uncharacterized protein; Fragment; | NULL | NULL | 260 | sea-urchin |
| B5G693 | Transcription factor SoxB2; | soxB2; | NULL | 270 | sea-urchin |
| A6N414 | 185/333 01 delta; | NULL | NULL | 274 | sea-urchin |
| A1DXH3 | Sp185/333; | NULL | NULL | 291 | sea-urchin |
| B0R1Y4 | Huntingtin; Fragment; | hd; | NULL | 313 | sea-urchin |
| A6N3U9 | 185/333 G2 gamma; | NULL | NULL | 493 | sea-urchin |
| A7WM85 | ADP-ribosyl cyclase isoform 2; | arc2; | NP_001103714.2; | 332 | sea-urchin |
| B5G688 | Transcription factor SoxB2; | soxB2; | NULL | 270 | sea-urchin |
| O97375 | Scavenger receptor cysteine-rich protein type 12; | SRCR12; | NP_999762.1; | 2153 | sea-urchin |
| Q3YAG3 | Fibroblast growth factor; FGF; Fragment; | FGF; | NULL | 339 | sea-urchin |
| Q3LSB3 | 185/333; | NULL | NULL | 274 | sea-urchin |
| A1DXA8 | Sp185/333; | NULL | NULL | 142 | sea-urchin |
| A1DXH6 | Sp185/333; | NULL | NULL | 376 | sea-urchin |
