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| Title | A single residue in the yellow fever virus envelope protein modulates virion architecture and antigenicity. |
|---|---|
| Journal, issue, pages | Nat Commun, Vol. 16, Issue 1, Page 8449, Year 2025 |
| Publish date | Sep 26, 2025 |
Authors | Summa Bibby / James Jung / Yu Shang Low / Alberto A Amarilla / Natalee D Newton / Connor A P Scott / Jessica Balk / Yi Tian Ting / Morgan E Freney / Benjamin Liang / Timothy Grant / Fasséli Coulibaly / Paul Young / Roy A Hall / Jody Hobson-Peters / Naphak Modhiran / Daniel Watterson / ![]() |
| PubMed Abstract | Yellow fever virus (YFV) is a re-emerging flavivirus that causes severe hepatic disease and mortality in humans. Despite being researched for over a century, the structure of YFV has remained elusive. ...Yellow fever virus (YFV) is a re-emerging flavivirus that causes severe hepatic disease and mortality in humans. Despite being researched for over a century, the structure of YFV has remained elusive. Here we use a chimeric virus platform to resolve the first high resolution cryo-EM structures of YFV. Stark differences in particle morphology and homogeneity are observed between vaccine and virulent strains of YFV, and these are found to have significant implications on antibody recognition and neutralisation. We identify a single residue (R380) in the YFV envelope protein that stabilises the virion surface, and leads to reduced exposure of the cross-reactive fusion loop epitope. The differences in virion morphology between YFV strains also contribute to the reduced sensitivity of the virulent YFV virions to vaccine-induced antibodies. These findings have significant implications for YFV biology, vaccinology and structure-based flavivirus antigen design. |
External links | Nat Commun / PubMed:41006244 / PubMed Central |
| Methods | EM (single particle) / X-ray diffraction |
| Resolution | 2.66 - 21.8 Å |
| Structure data | ![]() EMDB-44278: Chimeric flavivirus between BinJV and YFV-17D ![]() EMDB-44279: Chimeric flavivirus between BinJV and YFV-ES504 ![]() EMDB-44280: Chimeric flavivirus between BinJV and YFV-17D in complex with 2C9 Fab ![]() EMDB-44281: Chimeric flavivirus between BinJV and YFV-ES504 in complex with 2C9 Fab ![]() EMDB-44282: Chimeric flavivirus between BinJV and YFV-17D in complex with 5A Fab ![]() EMDB-44283: Chimeric flavivirus between BinJV and YFV-ES504 in complex with 5A Fab ![]() EMDB-44284: Chimeric flavivirus between BinJV and YFV-ES504 with YFV-17D DIII ![]() EMDB-44285: Chimeric flavivirus between BinJV and YFV-ES504 with YFV-17D DIII in complex with 2C9 Fab ![]() EMDB-44286: Chimeric flavivirus between BinJV and YFV-Asibi with YFV-17D DIII ![]() EMDB-44287: Chimeric flavivirus between BinJV and YFV-ES504 T380R EMDB-44288, PDB-9b6u: EMDB-44289, PDB-9b6v: EMDB-44290, PDB-9b6w: EMDB-44291, PDB-9b6x: EMDB-44292, PDB-9b6y: ![]() EMDB-49804: Chimeric flavivirus between BinJV and YFV-Asibi ![]() EMDB-49805: Chimeric flavivirus between BinJV and YFV-Asibi T380R ![]() PDB-9b8g: |
| Chemicals | ![]() ChemComp-NAG: ![]() ChemComp-CL: ![]() ChemComp-SO4: ![]() ChemComp-HOH: |
| Source |
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Keywords | VIRUS/IMMUNE SYSTEM / Flavivirus / Envelope protein / Yellow fever virus / Fab / VIRUS / VIRUS-IMMUNE SYSTEM complex / IMMUNE SYSTEM / Antibody / Yellow Fever |
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yellow fever virus
homo sapiens (human)
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