8ENL

CryoEM structure of the high pH turnover-inactivated nitrogenase MoFe-protein

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	477	54000.6	2	UniProt (P07328) Pfam (PF00148) In PDB	Azotobacter vinelandii	Dinitrogenase,Nitrogenase component I
2	B, D	Nitrogenase molybdenum-iron protein beta chain	polymer	522	59404.7	2	UniProt (P07329) Pfam (PF11844) Pfam (PF00148) In PDB	Azotobacter vinelandii	Dinitrogenase,Nitrogenase component I
3	A, C	iron-sulfur-molybdenum cluster with interstitial carbon	non-polymer		787.5	2	Chemie (ICS)
4	A, C	UNKNOWN ATOM OR ION	non-polymer		671.2	2	Chemie (UNX)
5	B, D	FE(8)-S(7) CLUSTER	non-polymer		671.2	2	Chemie (CLF)
6	B, D	CHAPSO	non-polymer		631.9	2	Chemie (1N7)
7	B, D	FE (III) ION	non-polymer		55.8	2	Chemie (FE)
8		water	water		18.0	926	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	226810.5
Non-Polymers*	Number of molecules	10
	Total formula weight	5635.2
All*	Total formula weight	232445.7

*Water molecules are not included.