Application of an automatic molecular-replacement procedure to crystal structure analysis of cytochrome c₂ from Rhodopseudomonas viridis

An automatic molecular-replacement procedure has been applied to solve the crystal structure of cytochrome c₂ from Rhodopseudomonas viridis. The structure was solved on the basis of the structure of tuna cytochrome c as a search model using an automatic processing program system, AUTOMR. The refinements by molecular dynamics and restrained least-squares methods result in a current crystallographic R factor of 0.219 for diffraction data at 3 Å resolution.