Download MendeleyA new pentameric structure of rotavirus NSP4 revealed by molecular replacement.
Chacko, A.R., Jeyakanthan, J., Ueno, G., Sekar, K., Rao, C.D., Dodson, E.J., Suguna, K., Read, R.J.(2012) Acta Crystallogr D Biol Crystallogr 68: 57-61
- PubMed: 22194333
- DOI: https://doi.org/10.1107/S0907444911049705
- Primary Citation of Related Structures:
3MIW - PubMed Abstract:
The region spanning residues 95-146 of the rotavirus nonstructural protein NSP4 from the asymptomatic human strain ST3 has been purified and crystallized and diffraction data have been collected to a resolution of 2.6 Å. Several attempts to solve the structure by the molecular-replacement method using the available tetrameric structures of this domain were unsuccessful despite a sequence identity of 73% to the already known structures. A more systematic approach with a dimer as the search model led to an unexpected pentameric structure using the program Phaser. The various steps involved in arriving at this molecular-replacement solution, which unravelled a case of subtle variation between different oligomeric states unknown at the time of solving the structure, are presented in this paper.
Organizational Affiliation:
Molecular Biophysics Unit, Indian Institute of Science, Bangalore, Karnataka, India.
