Figure 4From: Unraveling the molecular mechanisms of nitrogenase conformational protection against oxygen in diazotrophic bacteriaElectrostatic surface of nitrogenase complex of A. vinelandii and G. diazotrophicus The positive regions are indicated in blue and the negative regions in red. The squares indicate the interaction site of FeSII. A) A. vinelandii nitrogenase complex. B) G. diazotrophicus nitrogenase complex.Back to article page