Volume 400 (2006), pp. 477–484
While we noted in the above paper that low ATPase activity was observed by Jensen et al. in 1999 , we want to clarify that Jensen et al. in fact suggested that this activity was artifactual. The earlier paper therefore is in complete agreement with our work on the Rhodobacter capsulatus magnesium chelatase subunit. We regret any confusion this may have caused.