Purification, crystallization and preliminary X-ray diffraction analysis of the IL-20-IL-20R1-IL-20R2 complex

The purification and crystallization of the IL-20-IL-20R1-IL-20R2 ternary complex is described. A low-temperature SAD data set was collected using synchrotron radiation, which showed that the crystals belonged to space group P4₁2₁2 or its enantiomorph P4₃2₁2 and contained one ternary complex in the asymmetric unit.