Klebsiella pneumoniae yqhD的克隆与表征,张乐,马成伟,本文克隆了Klebsiella pneumoniae DSM2026的醛还原酶基因yqhD并在E. coli BL21(DE3)中得到了高效表达,经过Q-Sepharose和Sephacryl S-300两步柱层析纯化得�