PDBID	Molecule/ Organism	Pfam	Residues	HETATM	Symmetry	Pubmed	View
4wza	NITROGENASE MOLYBDENUM-IRON PROTEIN BETA CHAIN Azotobacter vinelandii	DUF3364 Oxidored_nitro	ARG B 468 ASP B 475 ARG B 476 ASP D 506	None	heteromer cyclic	25522159
5koh	NITROGENASE FEMO BETA SUBUNIT PROTEIN NIFK Gluconacetobacter diazotrophicus	DUF3364 Oxidored_nitro	ARG B 456 ASP B 463 ARG B 464 ASP D 494	None	heteromer cyclic	27487256