Re: Fractal dimension of Alpha-helix


In terms of general mathematical characteristic, an Alpha-helix is just
a circular right-handed helix, sitting on a right-circular cylinder
surface. Upon unrolling that cylinder on the plane, the helix turns
into a diagonal, straight line.

In terms of the particulars :
1) Repeating values of torsion angles in alpha-helix are : [180(deg),
-47(deg), - 57(deg)], and then again [] and [] ...

2) The helix has 3.6 amino acid residues per turn.

3) The translation per residue along the helix axis is 0.15 nm. The
pitch(product of the number of residues per turn and translation per
residue) is 0.54 nm.

- I think this is how you can describe Alpha-helix, in mathematical
terms. - Problem is how to calculate the fractality of this object?

.