Rees DM, Montgomery MG, Leslie AGW, Walker JE. Structural evidence of a new catalytic intermediate in the pathway of ATP hydrolysis by F 1 –ATPase from bovine heart mitochondria. Proc. Natl. Acad. Sci. U.S.A. 2012 Jun 25;109(28):11139–43. doi: 10.1073/pnas.1207587109.