Figure 1
Purification and crystallization of the N60K mutant of the nsp9 protein from HCoV-HKU1. (a) SDS–PAGE analysis of the purified N60K mutant of the nsp9 protein from HCoV-HKU1. The molecular masses of the marker are indicated in kDa. (b) Crystals of the N60K mutant of the nsp9 protein from HCoV-HKU1 grown by the hanging-drop method. A crystal with typical dimensions of 0.08 × 0.05 × 0.02 mm was used for subsequent diffraction and data collection. |