The deduced amino acid sequence of ORF 2 showed 57 and 44% identity with catechol 2,3-dioxygenase(phe B) of %Bacillus stearothermophilus % and catechol 2,3-dioxygenase(C23O) of %Rhodococcus rhodochrous % CTM, respectively.

• ORF 2由 3 2 7个氨基酸组成 ,与嗜热脂肪芽孢杆菌(Bacillusstearothermophilus)的邻苯二酚双加氧酶 (pheB)及紫红红球菌 (Rhodococcusrhodochrous)CTM的邻苯二酚双加氧酶 (C2 3O)在氨基酸水平上分别有 5 7%25和 44%25的同源性