1MIO

X-RAY CRYSTAL STRUCTURE OF THE NITROGENASE MOLYBDENUM-IRON PROTEIN FROM CLOSTRIDIUM PASTEURIANUM AT 3.0 ANGSTROMS RESOLUTION

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, C	NITROGENASE MOLYBDENUM IRON PROTEIN (ALPHA CHAIN)	polymer	533	59071.2	2	UniProt (P00467) Pfam (PF00148) In PDB	Clostridium pasteurianum
2	B, D	NITROGENASE MOLYBDENUM IRON PROTEIN (BETA CHAIN)	polymer	458	50175.1	2	UniProt (P11347) Pfam (PF00148) In PDB	Clostridium pasteurianum
3	B, D	CALCIUM ION	non-polymer		40.1	2	Chemie (CA)
4	B, D	3-HYDROXY-3-CARBOXY-ADIPIC ACID	non-polymer		206.2	2	Chemie (HCA)
5	B, D	FE-MO-S CLUSTER	non-polymer		775.4	2	Chemie (CFM)
6	B, D	FE-S CLUSTER	non-polymer		703.3	2	Chemie (CLP)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	218492.7
Non-Polymers*	Number of molecules	8
	Total formula weight	3449.9
All*	Total formula weight	221942.6

*Water molecules are not included.