Requires Mg2+. In?Aquilaria crassna?three clones of the enzyme gave about 80% ¦Ä-guaiene and 20% ¦Á-guaiene (see also EC?4.2.3.87). A fourth clone gave 54% ¦Ä-guaiene and 45% ¦Á-guaiene [2]. The enzyme from?Pogostemon cablin?gives 13% ¦Ä-guaiene as well as 37% (-)-patchoulol (see EC?4.2.3.70), 13% ¦Á-guaiene (see EC?4.2.3.87), and traces of at least ten other sesquiterpenoids [1].