کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5822319 | 1117939 | 2013 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A peptide targeted against phosphoprotein and leader RNA interaction inhibits growth of Chandipura virus - An emerging rhabdovirus
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کلمات کلیدی
TOCSYLeader RNAESI-MSRdRpFMOCnuclear magnetic resonance - رزونانس مغناطیسی هستهایRNA dependent RNA polymerase - RNA پلیمراز وابسته به RNABeta-sheet - بتا ورقNMR - تشدید مغناطیسی هستهای Viral replication - تکرار ویروسیAnti-viral - ضد ویروسیelectrospray ionization mass spectroscopy - طیف سنجی جرم یونیزاسیون الکترو اسپریTotal correlation spectroscopy - طیف سنجی مجموع همبستگیMALDI TOF - مالدی TOFDrug target - هدف مواد مخدرChandipura virus - ویروس چندیپوراPeptide - پپتید high performance liquid chromatography - کروماتوگرافی مایع با کارایی بالاHPLC - کروماتوگرافی مایعی کارا
موضوعات مرتبط
علوم زیستی و بیوفناوری
ایمنی شناسی و میکروب شناسی
ویروس شناسی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The fatal illness caused by Chandipura virus (CHPV), an emerging pathogen, presently lacks any therapeutic option. Previous research suggested that interaction between the virally encoded phosphoprotein (P) and the positive sense leader RNA (le-RNA) may play an important role in the viral lifecycle. In this report, we have identified a β-sheet/loop motif in the C-terminal domain of the CHPV P protein as essential for this interaction. A synthetic peptide encompassing this motif and spanning a continuous stretch of 36 amino acids (Pep208-243) was found to bind the le-RNA in vitro and inhibit CHPV growth in infected cells. Furthermore, a stretch of three amino acid residues at position 217-219 was identified as essential for this interaction, both in vitro and in infected cells. siRNA knockdown-rescue experiments demonstrated that these three amino acid residues are crucial for the leader RNA binding function of P protein in the CHPV life cycle. Mutations of these three amino acid residues render the peptide completely ineffective against CHPV. Effect of inhibition of phosphoprotein-leader RNA interaction on viral replication was assayed. Peptide Pep208-243 tagged with a cell penetrating peptide was found to inhibit CHPV replication as ascertained by real time RT-PCR. The specific inhibition of viral growth observed using this peptide suggests a new possibility for designing of anti-viral agents against Mononegavirale group of human viruses.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Antiviral Research - Volume 100, Issue 2, November 2013, Pages 346-355
Journal: Antiviral Research - Volume 100, Issue 2, November 2013, Pages 346-355
نویسندگان
Arunava Roy, Prasenjit Chakraborty, Smarajit Polley, Dhrubajyoti Chattopadhyay, Siddhartha Roy,