Harris E D
Department of Biochemistry and Biophysics, Texas A & M University, College Station 77843-2128.
Nutr Rev. 1992 Sep;50(9):263-7. doi: 10.1111/j.1753-4887.1992.tb01343.x.
Recent evidence has failed to support the claim for a pyrroloquinoline quinone (PQQ) cofactor in mammalian enzymes previously reported to have PQQ. The validity of the original analysis now has been questioned, and a second cofactor, topa quinone, has been identified in at least one enzyme.
最近的证据未能支持先前报道的哺乳动物酶中存在吡咯喹啉醌（PQQ）辅因子的说法。原始分析的有效性现在受到质疑，并且在至少一种酶中发现了第二种辅因子，即对苯二酚醌。
