Table 3.
Number of copies (paralogues) of toxin genes in the king cobra (Ophiophagus hannah) genome; data from Ref. [3].
| Venom Toxin or Toxin Family | Number of Paralogues |
|---|---|
| 3FTx (three-finger toxin) * | 21 |
| PLA2 (phospholipase A2) * | 12 |
| Lectin * | 11 |
| Kunitz * | 10 |
| Waprins * | 6 |
| Cystatin | 5 |
| CRISP (cysteine-rich secretory protein) | 3 |
| CVF (cobra venom factor) | 3 |
| Kallikrein | 3 |
| SVMP (snake venom metalloproteinase) | 3 |
| LAAO (L-amino acid oxidase) | 2 |
| NGF (nerve growth factor) | 2 |
| NP (natriuretic peptide) * | 2 |
| Acetylcholinesterase | 1 |
| Hyaluronidase | 1 |
| PLB (phospholipase-B) | 1 |
| VEGF (vascular endothelial growth factors) | 1 |
| Vespryn | 1 |
Key: (*) estimated number of paralogues; the current genome assembly is not sufficiently well-scaffolded to allow the number of paralogues to be determined with certainty.