Download MendeleyCrystal structure of a novel dimeric form of NS5A domain I protein from hepatitis C virus
Love, R.A., Brodsky, O., Hickey, M.J., Wells, P.A., Cronin, C.N.(2009) J Virol 83: 4395-4403
- PubMed: 19244328
- DOI: https://doi.org/10.1128/JVI.02352-08
- Primary Citation of Related Structures:
3FQM, 3FQQ - PubMed Abstract:
A new protein expression vector design utilizing an N-terminal six-histidine tag and tobacco etch virus protease cleavage site upstream of the hepatitis C virus NS5A sequence has resulted in a more straightforward purification method and improved yields of purified NS5A domain I protein. High-resolution diffracting crystals of NS5A domain I (amino acids 33 to 202) [NS5A(33-202)] were obtained by using detergent additive crystallization screens, leading to the structure of a homodimer which is organized differently from that published previously (T. L. Tellinghuisen, J. Marcotrigiano, and C. M. Rice, Nature 435:374-379, 2005) yet is consistent with a membrane association model for NS5A. The monomer-monomer interface of NS5A(33-202) features an extensive buried surface area involving the most-highly conserved face of each monomer. The two alternate structural forms of domain I now available may be indicative of the multiple roles emerging for NS5A in viral RNA replication and viral particle assembly.
Organizational Affiliation:
Structural Biology Group, Pfizer Global Research and Development, La Jolla Laboratories, San Diego, California 92121, USA. robert.love@pfizer.com
