| The phylogenic analysis implies that the multiple actinin isoforms found in modern vertebrates arose after the divergence of the vertebrate and urochordate lineages. |
| All of the snake toxin types still possess the bioactivity of the ancestral proteins in at least some of the toxin isoforms. |
| We also postulated that there could be different protein isoforms that correlated with these temporal and spatial transcripts. |
| Constitutive isoforms of NOS are dependent on intracellular concentration of calcium and calmodulin. |
| The enzyme isoforms seem to have a tissue-specific expression, showing the highest expression levels in cells where intense active transport is expected to occur. |
| Clone 4A4 recognizes both the transactivating and truncated p63 isoforms. |
