| Sub-class of | TK |
| Notes | Urchin-specific family within TK group (Sp = Strongylocentrotus purpuratus |
| Alignment | Protein       Domain |
| Phylogenetic Tree | Protein       Domain |
| Hmmlogo | Protein       Domain |
| Hmm File | Protein       Domain |
|
| Phylogenetic Distribution |
 | | TK-Sp1 is specific to Urchin. |
|