3AYX

Membrane-bound respiratory [NiFe] hydrogenase from Hydrogenovibrio marinus in an H2-reduced condition

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, C	Membrane-bound hydrogenase large subunit	polymer	596	66574.4	2	UniProt (F2Z6J6) Pfam (PF00374) In PDB	Hydrogenovibrio marinus	MEMBRANE-BOUND RESPIRATORY NI-FE HYDROGENASE LARGE SUBUNIT
2	B, D	Membrane-bound hydrogenase small subunit	polymer	283	31306.7	2	UniProt (F2Z6J5) Pfam (PF01058) Pfam (PF14720) In PDB	Hydrogenovibrio marinus	MEMBRANE-BOUND RESPIRATORY NI-FE HYDROGENASE SMALL SUBUNIT
3	A, C	FE (II) ION	non-polymer		55.8	2	Chemie (FE2)
4	A, C	NICKEL (II) ION	non-polymer		58.7	2	Chemie (NI)
5	A, C	CARBON MONOXIDE	non-polymer		28.0	2	Chemie (CMO)
6	A, C	CYANIDE ION	non-polymer		26.0	4	Chemie (CYN)
7	C, A	OXYGEN ATOM	non-polymer		16.0	10	Chemie (O)
8	C, A	GLYCEROL	non-polymer		92.1	4	Chemie (GOL)
9	A, C	MAGNESIUM ION	non-polymer		24.3	2	Chemie (MG)
10	D, B	FE4-S3 CLUSTER	non-polymer		319.6	2	Chemie (F4S)
11	D, B	FE3-S4 CLUSTER	non-polymer		295.8	2	Chemie (F3S)
12	D, B	IRON/SULFUR CLUSTER	non-polymer		351.6	2	Chemie (SF4)
13		water	water		18.0	1655	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	195762.1
Non-Polymers*	Number of molecules	32
	Total formula weight	2900.2
All*	Total formula weight	198662.3

*Water molecules are not included.