Structural Description of the Nitrogenase Proteins

Since the phosphate groups of the nucleotide and the cluster are too distant (—20 A) to permit direct chemical coupling of electron transfer and ATP hydrolysis, the location of both sites at the subunit interface 

The a and )3 subunits of the MoFe-protein exhibit similar polypeptide folds, consisting of three domains of the a//3 type with some extra 

---

B. Nitrogenase Molybdenum-Iron Protein Structural Description of the Nitrogenase Proteins... 

---