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학술발표회초록보기

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  • 02월 20일 17시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제113회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Identification of a novel potent antibacterial agent against Mycobacterium tuberculosisAcetohydroxyacid Synthase

등록일
2014년 2월 20일 16시 44분 30초
접수번호
1416
발표코드
BIO.P-582 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
4월 16일 (수요일) 16:00~19:00
발표형식
포스터
발표분야
생명화학
저자 및
공동저자
문지영, 하나름, 윤문영*
한양대학교 화학과, Korea
Mycobacterium tuberculosis acetohydroxyacid synthase (MTB-AHAS) is a potential and promising candidate in the development of novel anti-tuberculosis drugs. AHAS from MTB is one of the biosynthetic enzymes, which catalyzes the first common step in the biosynthesis of the essential branched chain amino acids (BCAA’s: valine, leucine, and isoleucine). To identify new inhibitory scaffolds, we used a high-throughput screening and tested a chemical library composed of 6500 compounds (from KRICT). The screen identified 15 compounds, each representing a structural class, as MTB-AHAS inhibitors with an IC50 in the low micro molar range (0.4?7μM). The inhibitors demonstrated non-competitive, un-competitive or mixed competitive inhibition. Further, molecular docking of potent chemicals in MTB-AHAS yielded ?8.5 ~ ?11 kcal/mol (△G) binding energies, respectively. The binding modes were consistent with inhibition mechanisms, as both chemicals oriented outside the active site. This potent inhibitor might provide an impetus for the development of a strong anti-tuberculosis agent targeting M.tuberculosis AHAS.

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