지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2008.6
- 수록면
- 489 - 494 (6page)
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초록· 키워드
오류제보하기
In order to develop a potent antidementia β-secretase inhibitor from phytochemicals, β-secretase inhibitory activities of extracts from many medicinal plants and herbs were determined. Water extracts from Rubus coreanus showed the highest β-secretase inhibitory activity of 84.5%. After purification of the β-secretase inhibitor from R. coreanus using systematic solvent extraction, ultrafiltration, Sephadex G-10 column chromatography, and reverse-phase high performance liquid chromatography (HPLC), a purified β-secretase inhibitor with IC<sub>50</sub> inhibitory activity of 6.3×10<sup>3</sup> ng/mL (1.56×10<sup>?6</sup> M) was obtained with a 0.08% solid yield. The molecular mass of the purified β-secretase inhibitor was estimated to be 576 Da by liquid chromatography-mass spectrometry (LC-MS) and β-secretase inhibitor also is a new tetrapeptide with the sequence Gly-Trp-Trp-Glu. The purified β-secretase inhibitory peptide inhibited β-secretase non-competitively and also show less inhibition on trypsin, however no inhibition on other proteases such as α-secretase, chymotrypsin, and elastase.
목차
Abstract
Introduction
Materials and Methods
Results and Discussion
References
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UCI(KEPA) : I410-ECN-0101-2013-573-001009128