کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10148700 1646650 2018 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Selection and structural analysis of the NY25 peptide - A vaccine candidate from hemagglutinin of swine-origin Influenza H1N1
موضوعات مرتبط
علوم زیستی و بیوفناوری ایمنی شناسی و میکروب شناسی میکروب شناسی
پیش نمایش صفحه اول مقاله
Selection and structural analysis of the NY25 peptide - A vaccine candidate from hemagglutinin of swine-origin Influenza H1N1
چکیده انگلیسی
The aim of this study was to construct a vaccine peptide candidate against pandemic Influenza H1N1 hemagglutinin and to test its structure. With the help of bioinformatic algorithms we showed that the sequence encoding the second polypeptide of pandemic Influenza H1N1 hemagglutinin (HA2) is protected from nonsynonymous mutations better than the sequence encoding its first polypeptide (HA1). With the help of secondary and ternary structure predicting algorithms we found the fragment of HA2 with the most reproducible secondary structure and synthesized the NY25 peptide corresponding to the residues Asn117 - Tyr141 of HA2. According to the circular dichroism spectra analysis, the peptide has short helix and beta hairpin. According to the analysis of differential fluorescence quenching results, two tyrosine residues are situated on a long distance from each other. These facts taken together with the positive results of affine chromatography with the serum of a person immunized by full-length hemagglutinin confirm that the structure of the fragment of viral full-length protein has been reproduced in the synthetic NY25 peptide. Amino acid sequence of the NY25 peptide (NLYEKVRSQLKNNAKEIGNGCFEFY) is relatively conserved in 18 subtypes of Influenza A virus hemagglutinin.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Microbial Pathogenesis - Volume 125, December 2018, Pages 72-83
نویسندگان
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