کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9121561 | 1159191 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Differences in biochemical properties of the Plasmodial falcipain-2 and berghepain-2 orthologues: Implications for in vivo screens of inhibitors
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
ژنتیک
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![عکس صفحه اول مقاله: Differences in biochemical properties of the Plasmodial falcipain-2 and berghepain-2 orthologues: Implications for in vivo screens of inhibitors Differences in biochemical properties of the Plasmodial falcipain-2 and berghepain-2 orthologues: Implications for in vivo screens of inhibitors](/preview/png/9121561.png)
چکیده انگلیسی
Falcipain-2A, the cysteine protease of Plasmodium falciparum has been proposed as a good drug target. This study evaluated the suitability of Plasmodium berghei as the animal model and reports the first functional expression and characterization of the falcipain-2A orthologue, berghepain-2. Comparative studies revealed that the orthologues exhibited different biochemical properties. Berghepain-2 demonstrated optimal activity at a narrower pH optima of 5.5-6 and a lack of preference for substrates with leucine at position 2. Mutagenesis studies revealed roles for residues Val63 and Arg230 of berghepain-2 in contributing to its distinctive biochemical properties. This warrants re-evaluation of employing P. berghei as the murine model for the in vivo screening of falcipain-2A inhibitors. More importantly, these findings stress the underlying importance of establishing the functionality of relevant genes of P. falciparum with concomitant relevance to its murine counterpart prior to its use as the animal model for the screening of potential antimalarials.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: FEMS Microbiology Letters - Volume 249, Issue 2, 15 August 2005, Pages 315-321
Journal: FEMS Microbiology Letters - Volume 249, Issue 2, 15 August 2005, Pages 315-321
نویسندگان
Chan Cheryl, Goh Liuh Ling, Sim Tiow-Suan,