6KOE

X-ray Structure of the proton-pumping cytochrome aa3-600 menaquinol oxidase from Bacillus subtilis

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	655	74721.7	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
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 quinol oxidase subunit III,Quinol oxidase subunit 3
4	D, H	AA3-600 quinol oxidase subunit IV	polymer	124	12404.3	2	UniProt (A0A063XC43) Pfam (PF03626) UniProt (by SIFTS) (P34959) In PDB	Bacillus subtilis	Cytochrome aa3-600 quinol oxidase subunit IV,Quinol oxidase subunit 4
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-4-HYDROXY QUINOLINE N-OXIDE	non-polymer		259.3	2	Chemie (HQO)

Sequence modifications

A, E: 1 - 649 (UniProt: A0A063X8D0)

PDB	External Database	Details
His 650	-	expression tag
His 651	-	expression tag
His 652	-	expression tag
His 653	-	expression tag
His 654	-	expression tag
His 655	-	expression tag

D, H: 0 - 47 (PDB: 6KOE)
D, H: 48 - 124 (UniProt: A0A063XC43)

Contents of the asymmetric unit

Polymers	Number of chains	8
	Total formula weight	286811.1
Non-Polymers*	Number of molecules	8
	Total formula weight	4057.1
All*	Total formula weight	290868.2

*Water molecules are not included.