Scientists present three crystal structures of full-length dengue virus NS1 complexed with a flavivirus–cross-reactive, NS1-specific monoclonal antibody, 2B7, at resolutions between 2.89 and 3.96 angstroms. These structures reveal a protective mechanism by which two domains of NS1 are antagonized simultaneously.
[Science]
6445218 {6445218:4ING8NVE} apa 50 1 157793 https://www.stemcellsciencenews.com/wp-content/plugins/zotpress/
%7B%22status%22%3A%22success%22%2C%22updateneeded%22%3Afalse%2C%22instance%22%3A%22zotpress-d186dcab8a430f7558b87d8f83740a60%22%2C%22meta%22%3A%7B%22request_last%22%3A0%2C%22request_next%22%3A0%2C%22used_cache%22%3Atrue%7D%2C%22data%22%3A%5B%7B%22key%22%3A%224ING8NVE%22%2C%22library%22%3A%7B%22id%22%3A6445218%7D%2C%22meta%22%3A%7B%22creatorSummary%22%3A%22Biering%20et%20al.%22%2C%22parsedDate%22%3A%222021-01-08%22%2C%22numChildren%22%3A2%7D%2C%22bib%22%3A%22%3Cdiv%20class%3D%5C%22csl-bib-body%5C%22%20style%3D%5C%22line-height%3A%202%3B%20padding-left%3A%201em%3B%20text-indent%3A-1em%3B%5C%22%3E%5Cn%20%20%3Cdiv%20class%3D%5C%22csl-entry%5C%22%3EBiering%2C%20S.%20B.%2C%20Akey%2C%20D.%20L.%2C%20Wong%2C%20M.%20P.%2C%20Brown%2C%20W.%20C.%2C%20Lo%2C%20N.%20T.%20N.%2C%20Puerta-Guardo%2C%20H.%2C%20Sousa%2C%20F.%20T.%20G.%20de%2C%20Wang%2C%20C.%2C%20Konwerski%2C%20J.%20R.%2C%20Espinosa%2C%20D.%20A.%2C%20Bockhaus%2C%20N.%20J.%2C%20Glasner%2C%20D.%20R.%2C%20Li%2C%20J.%2C%20Blanc%2C%20S.%20F.%2C%20Juan%2C%20E.%20Y.%2C%20Elledge%2C%20S.%20J.%2C%20Mina%2C%20M.%20J.%2C%20Beatty%2C%20P.%20R.%2C%20Smith%2C%20J.%20L.%2C%20%26amp%3B%20Harris%2C%20E.%20%282021%29.%20Structural%20basis%20for%20antibody%20inhibition%20of%20flavivirus%20NS1%26%23x2013%3Btriggered%20endothelial%20dysfunction.%20%3Ci%3EScience%3C%5C%2Fi%3E%2C%20%3Ci%3E371%3C%5C%2Fi%3E%286525%29%2C%20194%26%23x2013%3B200.%20%3Ca%20href%3D%27https%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1126%5C%2Fscience.abc0476%27%3Ehttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1126%5C%2Fscience.abc0476%3C%5C%2Fa%3E%20%3Ca%20title%3D%27Cite%20in%20RIS%20Format%27%20class%3D%27zp-CiteRIS%27%20href%3D%27https%3A%5C%2F%5C%2Fwww.stemcellsciencenews.com%5C%2Fwp-content%5C%2Fplugins%5C%2Fzotpress%5C%2Flib%5C%2Frequest%5C%2Frequest.cite.php%3Fapi_user_id%3D6445218%26amp%3Bitem_key%3D4ING8NVE%27%3ECite%3C%5C%2Fa%3E%20%3C%5C%2Fdiv%3E%5Cn%3C%5C%2Fdiv%3E%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22Structural%20basis%20for%20antibody%20inhibition%20of%20flavivirus%20NS1%5Cu2013triggered%20endothelial%20dysfunction%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Scott%20B.%22%2C%22lastName%22%3A%22Biering%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22David%20L.%22%2C%22lastName%22%3A%22Akey%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Marcus%20P.%22%2C%22lastName%22%3A%22Wong%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22W.%20Clay%22%2C%22lastName%22%3A%22Brown%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Nicholas%20T.%20N.%22%2C%22lastName%22%3A%22Lo%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Henry%22%2C%22lastName%22%3A%22Puerta-Guardo%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Francielle%20Tramontini%20Gomes%20de%22%2C%22lastName%22%3A%22Sousa%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Chunling%22%2C%22lastName%22%3A%22Wang%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Jamie%20R.%22%2C%22lastName%22%3A%22Konwerski%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Diego%20A.%22%2C%22lastName%22%3A%22Espinosa%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Nicholas%20J.%22%2C%22lastName%22%3A%22Bockhaus%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Dustin%20R.%22%2C%22lastName%22%3A%22Glasner%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Jeffrey%22%2C%22lastName%22%3A%22Li%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Sophie%20F.%22%2C%22lastName%22%3A%22Blanc%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Evan%20Y.%22%2C%22lastName%22%3A%22Juan%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Stephen%20J.%22%2C%22lastName%22%3A%22Elledge%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Michael%20J.%22%2C%22lastName%22%3A%22Mina%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22P.%20Robert%22%2C%22lastName%22%3A%22Beatty%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Janet%20L.%22%2C%22lastName%22%3A%22Smith%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Eva%22%2C%22lastName%22%3A%22Harris%22%7D%5D%2C%22abstractNote%22%3A%22Two%20antibodies%20against%20flaviviruses%5CnFlaviviruses%20are%20a%20group%20of%20RNA%20viruses%20that%20include%20the%20human%20pathogens%20dengue%20virus%2C%20Zika%20virus%2C%20and%20West%20Nile%20virus.%20The%20envelope%20protein%20%28E%29%20on%20the%20virus%20surface%20has%20been%20the%20target%20of%20vaccine%20development%2C%20but%20problems%20have%20arisen%20with%20antibodies%20against%20E%2C%20leading%20to%20enhanced%20infection.%20Now%2C%20Modhiran%20et%20al.%20and%20Biering%20et%20al.%20describe%20two%20different%20antibodies%20that%20bind%20to%20the%20flavivirus%20NS1%20protein%20and%20prevent%20it%20from%20disrupting%20epithelial%20cells%2C%20which%20is%20associated%20with%20severe%20disease.%20Both%20antibodies%20cross-react%20with%20multiple%20flavivirus%20NS1%20proteins.%20The%20antibodies%20reduce%20viremia%20and%20increase%20survival%20in%20mouse%20models%20of%20flavivirus%20disease.%20Both%20papers%20include%20structures%20of%20NS1%20bound%20to%20an%20antibody%2C%20which%20give%20insight%20into%20the%20protective%20mechanism.%5CnScience%2C%20this%20issue%20p.%20190%2C%20p.%20194%5CnMedically%20important%20flaviviruses%20cause%20diverse%20disease%20pathologies%20and%20collectively%20are%20responsible%20for%20a%20major%20global%20disease%20burden.%20A%20contributing%20factor%20to%20pathogenesis%20is%20secreted%20flavivirus%20nonstructural%20protein%201%20%28NS1%29.%20Despite%20demonstrated%20protection%20by%20NS1-specific%20antibodies%20against%20lethal%20flavivirus%20challenge%2C%20the%20structural%20and%20mechanistic%20basis%20remains%20unknown.%20Here%2C%20we%20present%20three%20crystal%20structures%20of%20full-length%20dengue%20virus%20NS1%20complexed%20with%20a%20flavivirus%5Cu2013cross-reactive%2C%20NS1-specific%20monoclonal%20antibody%2C%202B7%2C%20at%20resolutions%20between%202.89%20and%203.96%20angstroms.%20These%20structures%20reveal%20a%20protective%20mechanism%20by%20which%20two%20domains%20of%20NS1%20are%20antagonized%20simultaneously.%20The%20NS1%20wing%20domain%20mediates%20cell%20binding%2C%20whereas%20the%20%5Cu03b2-ladder%20triggers%20downstream%20events%2C%20both%20of%20which%20are%20required%20for%20dengue%2C%20Zika%2C%20and%20West%20Nile%20virus%20NS1%5Cu2013mediated%20endothelial%20dysfunction.%20These%20observations%20provide%20a%20mechanistic%20explanation%20for%202B7%20protection%20against%20NS1-induced%20pathology%20and%20demonstrate%20the%20potential%20of%20one%20antibody%20to%20treat%20infections%20by%20multiple%20flaviviruses.%5CnBroadly%20protective%20antibodies%20that%20target%20the%20flavivirus%20NS1%20protein%20are%20structurally%20and%20functionally%20characterized.%5CnBroadly%20protective%20antibodies%20that%20target%20the%20flavivirus%20NS1%20protein%20are%20structurally%20and%20functionally%20characterized.%22%2C%22date%22%3A%222021%5C%2F01%5C%2F08%22%2C%22language%22%3A%22en%22%2C%22DOI%22%3A%2210.1126%5C%2Fscience.abc0476%22%2C%22ISSN%22%3A%220036-8075%2C%201095-9203%22%2C%22url%22%3A%22https%3A%5C%2F%5C%2Fscience.sciencemag.org%5C%2Fcontent%5C%2F371%5C%2F6525%5C%2F194%22%2C%22collections%22%3A%5B%5D%2C%22dateModified%22%3A%222021-01-11T20%3A02%3A57Z%22%7D%7D%5D%7D
Biering, S. B., Akey, D. L., Wong, M. P., Brown, W. C., Lo, N. T. N., Puerta-Guardo, H., Sousa, F. T. G. de, Wang, C., Konwerski, J. R., Espinosa, D. A., Bockhaus, N. J., Glasner, D. R., Li, J., Blanc, S. F., Juan, E. Y., Elledge, S. J., Mina, M. J., Beatty, P. R., Smith, J. L., & Harris, E. (2021). Structural basis for antibody inhibition of flavivirus NS1–triggered endothelial dysfunction. Science, 371(6525), 194–200. https://doi.org/10.1126/science.abc0476 Cite