1,3-Diarylpyrazolyl-acylsulfonamides Target HadAB/BC Complex in Mycobacterium tuberculosis.
1,3-Diarylpyrazolyl-acylsulfonamides Target HadAB/BC Complex in Mycobacterium tuberculosis.
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DOI:
10.1021/acsinfecdis.2c00392
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发表时间:
2022-11-11
影响因子:
5.3
通讯作者:
Ghorpade, Sandeep R.
中科院分区:
文献类型:
--
作者:
Singh, Vinayak;Grzegorzewicz, Anna E.;Fienberg, Stephen;Muller, Rudolf;Khonde, Lutete Peguy;Sanz, Olalla;Alfonso, Salvatore;Urones, Beatriz;Drewes, Gerard;Bantscheff, Marcus;Ghidelli-Disse, Sonja;Ioerger, Thomas R.;Angala, Bhanupriya;Liu, Jiuyu;Lee, Richard E.;Sacchettini, James C.;Krieger, Inna, V;Jackson, Mary;Chibale, Kelly;Ghorpade, Sandeep R.
关键词:
Alternative mode-of-inhibition of clinically validated targets is an effective strategy for circumventing existing clinical drug resistance. Herein, we report 1,3-diarylpyrazolyl-acylsulfonamides as potent inhibitors of HadAB/BC, a 3-hydroxyl-ACP dehydratase complex required to iteratively elongate the meromycolate chain of mycolic acids in Mycobacterium tuberculosis (Mtb). Mutations in compound 1-resistant Mtb mutants mapped to HadC (Rv0637; K157R), while chemoproteomics confirmed the compound’s binding to HadA (Rv0635), HadB (Rv0636), and HadC. The compounds effectively inhibited the HadAB and HadBC enzyme activities and affected mycolic acid biosynthesis in Mtb, in a concentration-dependent manner. Unlike known 3-hydroxyl-ACP dehydratase complex inhibitors of clinical significance, isoxyl and thioacetazone, 1,3-diarylpyrazolyl-acylsulfonamides did not require activation by EthA and thus are not liable to EthA-mediated resistance. Further, the crystal structure of a key compound in a complex with Mtb HadAB revealed unique binding interactions within the active site of HadAB, providing a useful tool for further structure-based optimization of the series.
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DOI:
10.1107/s0907444905036693
发表时间:
2006-01-01
影响因子:
2.2
作者:
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通讯作者:
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影响因子:
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DOI:
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发表时间:
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