Fig 2. Alignment of amino acid sequences and secondary structure prediction for CnqP1 –CnqP7 visualised by ESPript.

Sequence shows secondary structure elements of NphB: α, α-helices; η, 3₁₀-helices; β, β-strands; TT, strict β-turns. Black box with white character for strict sequence identity, bold characters in black for similarity. * marks arginine residues typical for Mg²⁺-independent ABBA prenyltransferases.