Three-dimensional structure of recombinant human interferon-gamma.Ealick, S.E., Cook, W.J., Vijay-Kumar, S., Carson, M., Nagabhushan, T.L., Trotta, P.P., Bugg, C.E.
(1991) Science 252: 698-702
- PubMed: 1902591
- DOI: https://doi.org/10.1126/science.1902591
- Primary Citation of Related Structures:
- PubMed Abstract:
The x-ray crystal structure of recombinant human interferon-gamma has been determined with the use of multiple-isomorphous-replacement techniques. Interferon-gamma, which is dimeric in solution, crystallizes with two dimers related by a noncrystallographic twofold axis in the asymmetric unit. The protein is primarily alpha helical, with six helices in each subunit that comprise approximately 62 percent of the structure; there is no beta sheet. The dimeric structure of human interferon-gamma is stabilized by the intertwining of helices across the subunit interface with multiple intersubunit interactions.
Department of Pharmacology, University of Alabama, Birmingham 35294.