Structure of an archaeal virus capsid protein reveals a common ancestry to eukaryotic and bacterial viruses.

16% PEG 3350
10% MPD
0.2M Ammonium Citrate (pH 4.5)
5% (v/v) glycerol
2mM DTT
20mM N,N-Dimethyldecylamine-B-oxide
0.1M Bicine (pH 9.0), VAPOR DIFFUSION, HANGING DROP, temperature 298.5K

The biological assembly is believed to be a trimer. However, only monomers are observed in the ASU.

Archaea, hyperthermophile, virus, evolution, crystal, Viral protein