1FRV

CRYSTAL STRUCTURE OF THE OXIDIZED FORM OF NI-FE HYDROGENASE

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, C	HYDROGENASE	polymer	264	28465.6	2	UniProt (P12943) Pfam (PF01058) Pfam (PF14720) In PDB	Desulfovibrio gigas	CYTOCHROME-C3 HYDROGENASE
2	B, D	HYDROGENASE	polymer	536	59783.1	2	UniProt (P12944) Pfam (PF00374) In PDB	Desulfovibrio gigas	CYTOCHROME-C3 HYDROGENASE
3	A, C	IRON/SULFUR CLUSTER	non-polymer		351.6	4	Chemie (SF4)
4	A, C	FE3-S4 CLUSTER	non-polymer		295.8	2	Chemie (F3S)
5	B, D	NICKEL (II) ION	non-polymer		58.7	2	Chemie (NI)
6	B, D	HYDRATED FE	non-polymer		109.9	2	Chemie (FEL)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	176497.4
Non-Polymers*	Number of molecules	10
	Total formula weight	2335.3
All*	Total formula weight	178832.7

*Water molecules are not included.