Figure 4. Amino acid sequences of gp120 α-helix and the carboxy terminal tail of TUBB3 plotted on a helical wheel.

A Wenxiang diagram with the axis direction set from the amino-terminal to the carboxy-terminal was used to show the properties of gp120 α helix and the carboxy terminal tail (CTT) of TUBB3. The hydrophobic sides are in red and hydrophilic sides in blue. The α helix motif of gp120 has only two hydrophilic amino acids at approximately 120 degrees from each other.