An analysis of the sequence variability of meningococcal fHbp, NadA and NHBA over a 50-year period in the Netherlands.

An analysis of the sequence variability of meningococcal fHbp, NadA and NHBA over a 50-year period in the Netherlands.
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DOI:
10.1371/journal.pone.0065043
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发表时间:
2013
期刊:
影响因子:
3.7
通讯作者:
Comanducci M
Comanducci M
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Bambini S;Piet J;Muzzi A;Keijzers W;Comandi S;De Tora L;Pizza M;Rappuoli R;van de Beek D;van der Ende A;Comanducci M

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Studies of meningococcal evolution and genetic population structure, including the long-term stability of non-random associations between variants of surface proteins, are essential for vaccine development. We analyzed the sequence variability of factor H-binding protein (fHbp), Neisserial Heparin-Binding Antigen (NHBA) and Neisseria adhesin A (NadA), three major antigens in the multicomponent meningococcal serogroup B vaccine 4CMenB. A panel of invasive isolates collected in the Netherlands over a period of 50 years was used. To our knowledge, this strain collection covers the longest time period of any collection available worldwide. Long-term persistence of several antigen sub/variants and of non-overlapping antigen sub/variant combinations was observed. Our data suggest that certain antigen sub/variants including those used in 4CMenB are conserved over time and promoted by selection.
人类全血和诱变研究中脑膜炎的转录组分析确定了与血液存活有关的毒力因子。
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