کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10587641 | 981431 | 2013 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Recognition of HIV-TAR RNA using neomycin-benzimidazole conjugates
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کلمات کلیدی
MALDI-TOFnuclear magnetic resonance - رزونانس مغناطیسی هستهایAminoglycosides - آمینو گلیکوزیدUltra violet - بسیار بنفشBenzimidazole - بنزیمیدازولTar - تارNMR - تشدید مغناطیسی هستهای FID - درNot available - در دسترس نیستcircular dichroism - رنگ تابی دورانیnot determined - مشخص نشدهNeomycin - نومیدین
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Synthesis of a novel class of compounds and their biophysical studies with TAR-RNA are presented. The synthesis of these compounds was achieved by conjugating neomycin, an aminoglycoside, with benzimidazoles modeled from a B-DNA minor groove binder, Hoechst 33258. The neomycin-benzimidazole conjugates have varying linkers that connect the benzimidazole and neomycin units. The linkers of varying length (5-23 atoms) in these conjugates contain one to three triazole units. The UV thermal denaturation experiments showed that the conjugates resulted in greater stabilization of the TAR-RNA than either neomycin or benzimidazole used in the synthesis of conjugates. These results were corroborated by the FID displacement and tat-TAR inhibition assays. The binding of ligands to the TAR-RNA is affected by the length and composition of the linker. Our results show that increasing the number of triazole groups and the linker length in these compounds have diminishing effect on the binding to TAR-RNA. Compounds that have shorter linker length and fewer triazole units in the linker displayed increased affinity towards the TAR RNA.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioorganic & Medicinal Chemistry Letters - Volume 23, Issue 20, 15 October 2013, Pages 5689-5693
Journal: Bioorganic & Medicinal Chemistry Letters - Volume 23, Issue 20, 15 October 2013, Pages 5689-5693
نویسندگان
Nihar Ranjan, Sunil Kumar, Derrick Watkins, Deyun Wang, Daniel H. Appella, Dev P. Arya,