Table 2. Summary of the polymorphic positions (viv>3) in the profilin sequences among the species analyzed in this work.
| Sequence position | 4 | 5 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 29 | 32 | 34 | 35 | 40 | 41 | 48 | 50 | 51 | 52 |
| Olea europaea | 3.06 | 5.47 | 3.10 | 4.62 | 3.55 | 4.16 | 3.13 | 3.59 | - | 5.71 | 3.38 | 3.55 | 3.13 | 3.35 | - | 3.23 | 3.42 | 3.06 | 3.55 | 3.46 | 3.20 |
| Betula pendula | - | - | - | - | - | 4.00 | 4.00 | 4.00 | 4.00 | 4.00 | - | - | - | - | - | - | - | - | - | - | - |
| Corylus avellana | - | 3.33 | - | - | - | - | - | - | - | - | - | 3.75 | - | - | - | - | 3.75 | - | - | - | - |
| Phleum pratense | - | 4.00 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Zea mays | - | - | - | - | - | - | - | - | - | 4.29 | - | - | - | - | 4.29 | - | - | - | - | - | - |
Polymorphic positions 62, 79 and 82 (asterisk), correspond to amino acids in the plant-specific binding pocket region. Position 79 (double-asterisk) is also one of the key amino acid for the profilin-actin interaction. Polymorphic positions 130 and 131 (triple-asterisk) correspond to important amino acids for the profilin-PIP interaction.