Besson M, Batchelor E P
Department of Physics, Villanova University, Villanova, Pennsylvania 19085 USA.
J Biol Phys. 2004 Jun;30(2):161-9. doi: 10.1023/B:JOBP.0000035860.68226.22.
We have computed the total energy as a function of six important torsion angles of the carcinogen N-2-acetylaminofluorene (AAF) bonded to thenitrogen N2 of deoxyguanosine using the semiempirical quantum mechanical method AM1. One global minimum and one local minimum are found separated by a modest barrier. We have computed the normal-mode frequencies of the relevant torsional motions and have determined the rate of conversion betweenthe two minima.
我们使用半经验量子力学方法AM1计算了致癌物N-2-乙酰氨基芴(AAF)与脱氧鸟苷的氮N2键合时,作为六个重要扭转角函数的总能量。发现一个全局最小值和一个局部最小值被一个适度的势垒隔开。我们计算了相关扭转运动的简正模式频率,并确定了两个最小值之间的转换速率。