6KOB

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, H (A, E)	AA3-600 quinol oxidase subunit I	polymer	655	74721.7	2	UniProt (A0A063X8D0) Pfam (PF00115) UniProt (by SIFTS) (P34956)	Bacillus subtilis	Cytochrome aa3 quinol oxidase subunit I,Cytochrome aa3-600 quinol oxidase subunit I
2	B, G (B, F)	Quinol oxidase subunit 2	polymer	296	33590.0	2	UniProt (A0A2I7T8S1) Pfam (PF02790) Pfam (PF00116) UniProt (by SIFTS) (P34957)	Bacillus subtilis
3	C, E (C, G)	AA3-600 quinol oxidase subunit IIII	polymer	204	22689.6	2	UniProt (A0A063X6N5) Pfam (PF00510) UniProt (by SIFTS) (P34958)	Bacillus subtilis	Cytochrome aa3-600 quinol oxidase subunit III,Quinol oxidase subunit 3
4	D, F (D, H)	AA3-600 quinol oxidase subunit IV,Quinol oxidase subunit 4	polymer	124	12404.3	2	UniProt (P34959) Pfam (PF03626)	Bacillus subtilis (strain 168)	Quinol oxidase aa3-600,subunit QoxD,Quinol oxidase polypeptide IV
5	I, J, M, N (A, E)	HEME-A	non-polymer		852.8	4	Chemie (HEA)
6	K, O (A, E)	COPPER (II) ION	non-polymer		63.5	2	Chemie (CU)
7	L, P (A, E)	MENAQUINONE-7	non-polymer		649.0	2	Chemie (MQ7)

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: 6KOB)
D, H: 48 - 124 (UniProt: P34959)

Contents of the asymmetric unit

Polymers	Number of chains	8
	Total formula weight	286811.1
Non-Polymers*	Number of molecules	8
	Total formula weight	4836.4
All*	Total formula weight	291647.5

*Water molecules are not included.