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Unraveling the Nanomechanical and Vibrational Properties of the Mayaro Virus

Alefe Roger Silva França1, Joel Félix Silva Diniz-Filho1, Clenilton Costa Dos Santos1

  • 1Physics Department, Laboratory of Biophysics and Nanosystems, Federal University of Maranhão, São Luís, MA 65085-580, Brazil.

ACS Omega
|December 16, 2024
PubMed

Insights

Mayaro virus (MAYV) exhibits unique nanomechanical properties and structural organization, offering insights into its arthritogenic disease potential. Physical virology reveals MAYV

Area of Science:

  • Physical Virology
  • Nanotechnology
  • Structural Biology

Background:

  • Mayaro virus (MAYV) is an emerging mosquito-borne pathogen causing arthritogenic disease.
  • Limited understanding of MAYV biology hinders effective disease management.
  • Physical virology offers tools to probe viral structure and dynamics.

Purpose of the Study:

  • To investigate the nanomechanical properties and structural organization of MAYV.
  • To compare MAYV's physical characteristics with chikungunya virus (CHIKV).
  • To elucidate the relationship between MAYV structure and its mechanical resistance.

Main Methods:

  • Atomic Force Microscopy (AFM) for topographic mapping, adhesion force, and Young's modulus measurements.
  • Surface-Enhanced Raman Spectroscopy (SERS) for analyzing vibrational signatures.
  • Comparative analysis with chikungunya virus (CHIKV).

Main Results:

  • AFM revealed 3D topographic maps of MAYV, detailing spike arrangement and charge distribution.
  • MAYV exhibits exceptional mechanical resistance due to its densely packaged RNA.
  • SERS identified distinct vibrational signatures for MAYV compared to CHIKV, indicating robust protein structures.

Conclusions:

  • MAYV possesses unique structural and nanomechanical properties contributing to its virion stability.
  • The study provides a deeper understanding of MAYV architecture and its implications for disease.
  • Findings offer a foundation for future MAYV research and therapeutic strategies.

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