| Accession | Uniprot_ID | domain | subfamily | Organism | Length | Protein names | |||
| P15844 | SPE2D_STRPU | 4 | SPEC | Strongylocentrotus purpuratus (Purple sea urchin) | 141 | Calcium-binding protein SPEC 2D | |||
| P04110 | SPE2A_STRPU | 4 | SPEC | Strongylocentrotus purpuratus (Purple sea urchin) | 150 | Calcium-binding protein SPEC 2A | |||
| P04111 | SPE2C_STRPU | 4 | SPEC | Strongylocentrotus purpuratus (Purple sea urchin) | 151 | Calcium-binding protein SPEC 2C | |||
| P04109 | SPE1A_STRPU | 4 | SPEC | Strongylocentrotus purpuratus (Purple sea urchin) | 152 | Calcium-binding protein SPEC 1A | |||
| P21788 | SP15_HEMPU | 4 | SPEC | Hemicentrotus pulcherrimus (Sea urchin) (Strongylocentrotus pulcherrimus) | 150 | 15 kDa calcium-binding protein (CABP) | |||