ジャーナル: Nat Commun / 年: 2018 タイトル: Rational design of a triple-type human papillomavirus vaccine by compromising viral-type specificity. 著者: Zhihai Li / Shuo Song / Maozhou He / Daning Wang / Jingjie Shi / Xinlin Liu / Yunbing Li / Xin Chi / Shuangping Wei / Yurou Yang / Zhiping Wang / Jinjin Li / Huilian Qian / Hai Yu / Qingbing ...著者: Zhihai Li / Shuo Song / Maozhou He / Daning Wang / Jingjie Shi / Xinlin Liu / Yunbing Li / Xin Chi / Shuangping Wei / Yurou Yang / Zhiping Wang / Jinjin Li / Huilian Qian / Hai Yu / Qingbing Zheng / Xiaodong Yan / Qinjian Zhao / Jun Zhang / Ying Gu / Shaowei Li / Ningshao Xia / 要旨: Sequence variability in surface-antigenic sites of pathogenic proteins is an important obstacle in vaccine development. Over 200 distinct genomic sequences have been identified for human ...Sequence variability in surface-antigenic sites of pathogenic proteins is an important obstacle in vaccine development. Over 200 distinct genomic sequences have been identified for human papillomavirus (HPV), of which more than 18 are associated with cervical cancer. Here, based on the high structural similarity of L1 surface loops within a group of phylogenetically close HPV types, we design a triple-type chimera of HPV33/58/52 using loop swapping. The chimeric VLPs elicit neutralization titers comparable with a mix of the three wild-type VLPs both in mice and non-human primates. This engineered region of the chimeric protein recapitulates the conformational contours of the antigenic surfaces of the parental-type proteins, offering a basis for this high immunity. Our stratagem is equally successful in developing other triplet-type chimeras (HPV16/35/31, HPV56/66/53, HPV39/68/70, HPV18/45/59), paving the way for the development of an improved HPV prophylactic vaccine against all carcinogenic HPV strains. This technique may also be extrapolated to other microbes.
#200 - 2016年8月 正二十面体型ウイルスの準対称性 (Quasisymmetry in Icosahedral Viruses) 類似性 (2)
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集合体
登録構造単位
A: Major capsid protein L1 B: Major capsid protein L1 C: Major capsid protein L1 D: Major capsid protein L1 E: Major capsid protein L1 F: Major capsid protein L1 G: Major capsid protein L1 H: Major capsid protein L1 I: Major capsid protein L1 J: Major capsid protein L1
The authors state that the sample sequence is consistent with the Gene Bank Number AMY16565.1 and ...The authors state that the sample sequence is consistent with the Gene Bank Number AMY16565.1 and there are mutations C176S, E268G.
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実験情報
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実験
実験
手法: X線回折 / 使用した結晶の数: 1
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試料調製
結晶
マシュー密度: 2.2 Å3/Da / 溶媒含有率: 44.02 %
結晶化
温度: 293.15 K / 手法: 蒸気拡散法, ハンギングドロップ法 / 詳細: 0.2 M magnesium formate, 13.5% (w/v) PEG 3350