Molecular Dynamics and Molecular Docking Studies on the Interaction between Four Tetrahydroxy Derivatives of Polyphenyls and Beta Amyloid
Author(s):
Abstract:
Interactions of 3,3',4,4'-tetrahydroxybiphenyl (BPT) and three isomeric 3,3",4,4"-tetrahydroxyterphenyls (OTT, MTT, PTT) with Alzheimers amyloid-β peptide (Aβ) were studied by molecular dynamics simulation and molecular docking. Structural parameters such as Root-mean-square derivations (RMSD), radial distribution function (RDF), helix percentage and other physical parameters were obtained. These inhibitors have been evaluated and compared for their activity against aggregation of Aβ. The results showed that all four compounds successfully inhibit association of Aβ and reduce aggregation of protein. For the tetrahydroxyterphenyls efficacy varies with linker geometry: the ortho-position affords the most successful inhibition and the para-geometry the least perhaps due to differing abilities of these inhibitors to bind amyloid-β peptide. Of the four small inhibitors studied 3,3',4,4'-tetrahydroxybiphenyl (BPT) is the most effective inhibitor. Molecular docking studies have been done to confirm the simulation results. Investigation of binding site and free energy confirmed that the efficiency of interaction with Aβ depends on differing abilities of these inhibitors to bind amyloid-β peptide. Binding energy of BPT is more negative than the other and it significantly decreases for PTT. Self-aggregation of this inhibitor decreases in comparison with BPT; therefore Aβ aggregation in the presence of biphenyl form is higher than terphenyls.
Keywords:
Language:
English
Published:
Biomacromolecular Journal, Volume:1 Issue: 2, Autumn 2015
Pages:
230 to 241
magiran.com/p1577002
دانلود و مطالعه متن این مقاله با یکی از روشهای زیر امکان پذیر است:
اشتراک شخصی
با عضویت و پرداخت آنلاین حق اشتراک یکساله به مبلغ 1,390,000ريال میتوانید 70 عنوان مطلب دانلود کنید!
اشتراک سازمانی
به کتابخانه دانشگاه یا محل کار خود پیشنهاد کنید تا اشتراک سازمانی این پایگاه را برای دسترسی نامحدود همه کاربران به متن مطالب تهیه نمایند!
توجه!
- حق عضویت دریافتی صرف حمایت از نشریات عضو و نگهداری، تکمیل و توسعه مگیران میشود.
- پرداخت حق اشتراک و دانلود مقالات اجازه بازنشر آن در سایر رسانههای چاپی و دیجیتال را به کاربر نمیدهد.
دسترسی سراسری کاربران دانشگاه پیام نور!
اعضای هیئت علمی و دانشجویان دانشگاه پیام نور در سراسر کشور، در صورت ثبت نام با ایمیل دانشگاهی، تا پایان فروردین ماه 1403 به مقالات سایت دسترسی خواهند داشت!
In order to view content subscription is required
Personal subscription
Subscribe magiran.com for 70 € euros via PayPal and download 70 articles during a year.
Organization subscription
Please contact us to subscribe your university or library for unlimited access!