1XDB

Crystal Structure of the Nitrogenase Fe protein Asp129Glu

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	Nitrogenase iron protein 1	polymer	289	31431.1	2	UniProt (P00459) Pfam (PF00142) In PDB	Azotobacter vinelandii	Nitrogenase Fe protein, Nitrogenase component II, Nitrogenase reductase
2	A	IRON/SULFUR CLUSTER	non-polymer		351.6	1	Chemie (SF4)

Sequence modifications

A, B: 1 - 289 (UniProt: P00459)

PDB	External Database	Details
Glu 129	Asp 129	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	62862.1
Non-Polymers*	Number of molecules	1
	Total formula weight	351.6
All*	Total formula weight	63213.8

*Water molecules are not included.