参考文献:10.1021/bi050136f 摘要:Adediran SA, Zhang Z, Nukaga M, Palzkill T, Pratt RF. The D-methyl group in beta-lactamase evolution: evidence from the Y221G and GC1 mutants of the class C beta-lactamase of Enterobacter cloacae P99. Biochemistry. 2005 May 24;44(20):7543–52. doi: 10.1021/bi050136f.