characterized. The structural analogs of L-glutamate, dimethyl esters of isophthalic acid (DMIP) and its derivatives were designed, synthesized and screened for inhibition of NADP-GDH activity as well as YH transition in B. poitrasii, and also in human pathogenic Candida albicans strains. Results The BpNADPGDH I and BpNADPGDH II were found to be homo-hexameric proteins with native molecular mass of 282 kDa
背景 据报道,编码
NADP依赖性
谷氨酸脱氢酶(
NADP-GDHs )的
基因在酵母菌Benjaminiella poitrasii中显示出与酵母-菌丝(Y H)可逆转变的因果关系。由于Y H过渡对于人类病原性真菌在宿主中的存活和增殖具有重要意义,因此可以将
NADP-GDHs用作抗真菌药物的靶标。 方法 通过在大肠杆菌B
L-21细胞中的异源表达,纯化了芽孢杆菌的酵母形式特异性Bp
NADPGDH I和菌丝形式特异性Bp
NADPGDH II并进行了表征。设计,合成和筛选了
L-谷氨酸,
间苯二甲酸二甲酯(
DMIP)及其衍
生物的结构类似物,以抑制
NADP-GDH活性以及Poitrasii以及人致病性白色念珠菌中的Y H转变。株。 结果 发现Bp
NADPGDH I和Bp
NADPGDH II是天然分子量分别为282 kDa和298 kDa,亚基分子量分别为47 kDa和49 kDa的同六聚体蛋白。除了独特的动力学特性外,还发现Bp
NADPGDH