6KOC

X-ray Structure of the proton-pumping cytochrome aa3-600 menaquinol oxidase from Bacillus subtilis complexed with 3-iodo-N-oxo-2-heptyl-4-hydroxyquinoline

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, E	AA3-600 quinol oxidase subunit I	polymer	649	73892.8	2	UniProt (A0A063X8D0) Pfam (PF00115) UniProt (by SIFTS) (P34956) In PDB	Bacillus subtilis	Cytochrome aa3 quinol oxidase subunit I,Cytochrome aa3-600 quinol oxidase subunit I
2	B, F	Quinol oxidase subunit 2	polymer	296	33590.0	2	UniProt (A0A2I7T8S1) Pfam (PF02790) Pfam (PF00116) UniProt (by SIFTS) (P34957) In PDB	Bacillus subtilis	cytochrome aa3-600 menaquinol oxidase
3	C, G	AA3-600 quinol oxidase subunit IIII	polymer	204	22689.6	2	UniProt (A0A063X6N5) Pfam (PF00510) UniProt (by SIFTS) (P34958) In PDB	Bacillus subtilis	cytochrome aa3-600 menaquinol oxidase, Cytochrome aa3-600 quinol oxidase subunit III,Quinol oxidase subunit 3
4	D, H	Quinol oxidase subunit 4,Quinol oxidase subunit 4	polymer	123	12319.2	2	UniProt (P34959) Pfam (PF03626) In PDB	Bacillus subtilis subsp. subtilis str. 168	Quinol oxidase aa3-600,subunit QoxD,Quinol oxidase polypeptide IV
5	A, E	HEME-A	non-polymer		852.8	4	Chemie (HEA)
6	A, E	COPPER (II) ION	non-polymer		63.5	2	Chemie (CU)
7	A, E	2-heptyl-3-iodanyl-1-oxidanyl-quinolin-4-one	non-polymer		385.2	2	Chemie (IHQ)

Sequence modifications

D, H: 0 - 47 (PDB: 6KOC)
D, H: 48 - 124 (UniProt: P34959)

Contents of the asymmetric unit

Polymers	Number of chains	8
	Total formula weight	284983.1
Non-Polymers*	Number of molecules	8
	Total formula weight	4308.9
All*	Total formula weight	289292.0

*Water molecules are not included.