Fig. 3.

Secondary structure of 3QF6 indicates alpha helix (blue), beta strands (red), turns (green) and coils (pink). In this AFP, the following residues 1–7, 14–22, 37–44, 56–64 help to fabricate alpha helices; 10–13, 24–27, 30–36, 45–55 and 62–64 produce random coils; residues 23, 28 and 29 compose the extended strand structure and finally the beta structure is only composed of residues 8 and 9.