The refined structure of a protein catenane: the HK97 bacteriophage capsid at 3.44 A resolution.

@article{Helgstrand2003TheRS,
  title={The refined structure of a protein catenane: the HK97 bacteriophage capsid at 3.44 A resolution.},
  author={Charlotte Helgstrand and William R. Wikoff and Robert L. Duda and Roger W. Hendrix and John E. Johnson and Lars Liljas},
  journal={Journal of molecular biology},
  year={2003},
  volume={334 5},
  pages={885-99}
}
The HK97 bacteriophage capsid is a unique example of macromolecular catenanes: interlocked rings of covalently attached protein subunits. The chain mail organization of the subunits stabilizes a particle in which the maximum thickness of the protein shell is 18A and the maximum diameter is 550A. The electron density has the appearance of a balloon illustrating the extraordinary strength conferred by the unique subunit organization. The refined structure shows novel qualities of the HK97 shell… CONTINUE READING

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