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Structure paper

TitleFrom structural polymorphism to structural metamorphosis of the coat protein of flexuous filamentous potato virus Y.
Journal, issue, pagesCommun Chem, Vol. 7, Issue 1, Page 14, Year 2024
Publish dateJan 17, 2024
AuthorsLuka Kavčič / Andreja Kežar / Neža Koritnik / Magda Tušek Žnidarič / Tajda Klobučar / Žiga Vičič / Franci Merzel / Ellie Holden / Justin L P Benesch / Marjetka Podobnik /
PubMed AbstractThe structural diversity and tunability of the capsid proteins (CPs) of various icosahedral and rod-shaped viruses have been well studied and exploited in the development of smart hybrid ...The structural diversity and tunability of the capsid proteins (CPs) of various icosahedral and rod-shaped viruses have been well studied and exploited in the development of smart hybrid nanoparticles. However, the potential of CPs of the wide-spread flexuous filamentous plant viruses remains to be explored. Here, we show that we can control the shape, size, RNA encapsidation ability, symmetry, stability and surface functionalization of nanoparticles through structure-based design of CP from potato virus Y (PVY). We provide high-resolution insight into CP-based self-assemblies, ranging from large polymorphic or monomorphic filaments to smaller annular, cubic or spherical particles. Furthermore, we show that we can prevent CP self-assembly in bacteria by fusion with a cleavable protein, enabling controlled nanoparticle formation in vitro. Understanding the remarkable structural diversity of PVY CP not only provides possibilities for the production of biodegradable nanoparticles, but may also advance future studies of CP's polymorphism in a biological context.
External linksCommun Chem / PubMed:38233506 / PubMed Central
MethodsEM (helical sym.) / EM (single particle)
Resolution2.41 - 12.75 Å
Structure data

EMDB-17046, PDB-8opa:
Virus-like Particle based on PVY coat protein with stacked-ring architecture
Method: EM (helical sym.) / Resolution: 3.34 Å

EMDB-17047, PDB-8opb:
Virus-like Particle based on PVY coat protein with RNA-free helical architecture
Method: EM (helical sym.) / Resolution: 3.58 Å

EMDB-17048, PDB-8opc:
Virus-like Particle based on PVY coat protein with helical architecture encapsidating ssRNA
Method: EM (helical sym.) / Resolution: 2.99 Å

EMDB-17049, PDB-8opd:
Virus-like Particle based on PVY coat protein with dC40 deletion with stacked-ring architecture
Method: EM (helical sym.) / Resolution: 3.5 Å

EMDB-17050, PDB-8ope:
Virus-like Particle based on PVY coat protein with dC40 deletion with helical architecture encapsidating ssRNA
Method: EM (helical sym.) / Resolution: 3.09 Å

EMDB-17051, PDB-8opf:
Virus-like Particle based on PVY coat protein with dC60 deletion with RNA-free helical architecture
Method: EM (helical sym.) / Resolution: 2.83 Å

EMDB-17052, PDB-8opg:
Virus-like Particle based on PVY coat protein with dC79 deletion with RNA-free helical architecture
Method: EM (helical sym.) / Resolution: 3.2 Å

EMDB-17053, PDB-8oph:
Head-to-tail double ring assembly from truncated PVY coat protein
Method: EM (single particle) / Resolution: 2.93 Å

EMDB-17054: RNA-free helical assembly from truncated PVY coat protein
Method: EM (helical sym.) / Resolution: 3.59 Å

EMDB-17055: Stacked-ring assembly from truncated PVY coat protein
Method: EM (single particle) / Resolution: 3.62 Å

EMDB-17056: Stacked-ring assembly from truncated PVY coat protein with L99C mutation
Method: EM (helical sym.) / Resolution: 3.45 Å

EMDB-17057: Helical assembly from truncated PVY coat protein with L99C mutation
Method: EM (helical sym.) / Resolution: 3.06 Å

EMDB-17058: Helical assembly from truncated PVY coat protein with K153E mutation
Method: EM (helical sym.) / Resolution: 3.41 Å

EMDB-17059: Cross-shaped junction assembly from truncated PVY coat protein with E150C mutation
Method: EM (single particle) / Resolution: 3.6 Å

EMDB-17060: Global refinement map of head-to-head double ring assembly from truncated PVY coat protein with K176E mutation
Method: EM (single particle) / Resolution: 4.56 Å

EMDB-17061: Local refinement map of head-to-head double ring assembly from truncated PVY coat protein with K176E mutation
Method: EM (single particle) / Resolution: 3.82 Å

EMDB-17062, PDB-8opj:
Global refinement of cubic assembly from truncated PVY coat protein with K176C mutation
Method: EM (single particle) / Resolution: 2.99 Å

EMDB-17063, PDB-8opk:
Local refinement of cubic assembly from truncated PVY coat protein with K176C mutation
Method: EM (single particle) / Resolution: 3.16 Å

EMDB-17064: Spherical assembly from truncated PVY coat protein with K177E mutation
Method: EM (single particle) / Resolution: 12.75 Å

EMDB-17065: Cubic assembly from truncated PVY coat protein with K176C mutation and removed His tag
Method: EM (single particle) / Resolution: 4.16 Å

EMDB-17066: Virus-like Particle based on PVY coat protein with L99C and K176C mutation with stacked-ring architecture
Method: EM (helical sym.) / Resolution: 3.18 Å

EMDB-17067: Virus-like Particle based on PVY coat protein with L99C and K176C mutation with RNA-free helical architecture
Method: EM (helical sym.) / Resolution: 3.2 Å

EMDB-17068: Virus-like Particle based on PVY coat protein with E150C and G193C mutation with stacked-ring architecture
Method: EM (helical sym.) / Resolution: 3.75 Å

EMDB-17069: Virus-like Particle based on PVY coat protein with E150C and G193C mutation with RNA-free helical architecture
Method: EM (helical sym.) / Resolution: 3.15 Å

EMDB-17070: Virus-like Particle based on PVY coat protein with S39C and E72C mutation with stacked-ring architecture
Method: EM (helical sym.) / Resolution: 3.83 Å

EMDB-17071: Virus-like Particle based on PVY coat protein with S39C and E72C mutation with RNA-free helical architecture
Method: EM (helical sym.) / Resolution: 3.69 Å

EMDB-17072, PDB-8opl:
Virus-like Particle based on PVY coat protein with T43C and D136C mutation with helical architecture encapsidating ssRNA
Method: EM (helical sym.) / Resolution: 2.41 Å

EMDB-17073: Virus-like Particle based on PVY coat protein with D136C mutation with helical architecture encapsidating ssRNA
Method: EM (helical sym.) / Resolution: 3.46 Å

EMDB-17074: Virus-like Particle based on PVY coat protein with R46A mutation with helical architecture encapsidating ssRNA
Method: EM (helical sym.) / Resolution: 2.62 Å

EMDB-17075: Virus-like Particle based on PVY coat protein with E139A mutation with helical architecture encapsidating ssRNA
Method: EM (helical sym.) / Resolution: 3.17 Å

Source
  • potato virus y strain ntn
KeywordsVIRUS LIKE PARTICLE / stacked-ring / VLP / Potyvirus / PVY / helical / RNA-free / ssRNA / dC40 / dC60 / dC79 / H2T double ring / trCP / cubes / K176C

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