Berger's team took up the challenge of predicting which lengths of amino acids within P22 tailspike would fold into beta helices
The design of the quadrafilar helix is based on the concept of four helices
operating in a quadrature phase separation, that is, [Delta][Phi] = [+ or 1](m - 1)[Pi]/4, where m is the helix number.
A comparison showed that the optimally packed computer-generated helices
closely matched the specific twists and diameters of helices
The antenna consists of two axial-mode helices
, approximately 0.
12] measurements were made on 2 helices
spaced S inches apart.
Chains of these linked pyridine twins spontaneously braid into double helices
around copper ions.
Past optical microscopy had suggested that the contracting myosin and actin are arranged in helices
, but this view has not been widely accepted.