2GSM

Catalytic Core (Subunits I and II) of Cytochrome c oxidase from Rhodobacter sphaeroides

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, C (A, C)	Cytochrome c oxidase subunit 1	polymer	566	63195.4	2	UniProt (P33517) Pfam (PF00115)	Rhodobacter sphaeroides	Cytochrome c oxidase polypeptide I, Cytochrome aa3 subunit 1
2	B, D (B, D)	Cytochrome c oxidase subunit 2	polymer	262	29365.4	2	UniProt (Q03736) Pfam (PF02790) Pfam (PF00116)	Rhodobacter sphaeroides	Cytochrome c oxidase polypeptide II, Cytochrome aa3 subunit 2, Oxidase aa3, subunit 2
3	AA, BA, E, F, G... (C, A, D, B)	DECYL-BETA-D-MALTOPYRANOSIDE	non-polymer		482.6	10	Chemie (DMU)
4	CA, H, OA, PA, U... (C, A, D, B)	COPPER (II) ION	non-polymer		63.5	6	Chemie (CU)
5	DA, I (C, A)	MAGNESIUM ION	non-polymer		24.3	2	Chemie (MG)
6	EA, J (C, A)	CALCIUM ION	non-polymer		40.1	2	Chemie (CA)
7	FA, K (C, A)	HYDROXIDE ION	non-polymer		17.0	2	Chemie (OH)
8	GA, HA, L, M (C, A)	HEME-A	non-polymer		852.8	4	Chemie (HEA)
9	IA, JA, KA, LA, N... (C, A, D, B)	TRIDECANE	non-polymer		184.4	12	Chemie (TRD)
10	QA, RA, W, X (D, B)	CADMIUM ION	non-polymer		112.4	4	Chemie (CD)
11	UA, VA, WA, XA (A, B, C, D)	water	water		18.0	503	Chemie (HOH)

Sequence modifications

B, D: 26 - 281 (UniProt: Q03736)

PDB	External Database	Details
His 282	-	expression tag
His 283	-	expression tag
His 284	-	expression tag
His 285	-	expression tag
His 286	-	expression tag
His 287	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	185121.5
Non-Polymers*	Number of molecules	42
	Total formula weight	11443.0
All*	Total formula weight	196564.5

*Water molecules are not included.