产品内容
本酶催化的反应为5-Nitrosalicylate + O2 = 2-Oxo-3-(5-Oxofuran-2-Ylidene)propanoate + Nitrite (Overall Reaction);;(1a) 5-Nitrosalicylate + O2 = 4-Nitro-6-Oxohepta-2,4-Dienedioate;;(1b) 4-Nitro-6-Oxohepta-2,4-Dienedioate = 2-Oxo-3-(5-Oxofuran-2-Ylidene)propanoate + Nitrite (Spontaneous),系统名称为5-Nitrosalicylate:oxygen 1,2-Oxidoreductase (Ring-Opening),该酶分离自土壤细菌慢生根瘤菌 Bradyrhizobium sp. JS329,参与 5-硝基氨基苯甲酸的降解途径。它的不寻常之处在于能催化环断裂而无需预先去除硝基。产物会自发内酯化,同时消除硝基。