3FYE

Catalytic core subunits (I and II) of cytochrome c oxidase from Rhodobacter sphaeroides in the reduced state

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 (Rhodopseudomonas 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 (Rhodopseudomonas sphaeroides)	Cytochrome c oxidase polypeptide II, Cytochrome aa3 subunit 2, Oxidase aa(3) subunit 2
3	BA, CA, E, F (C, A)	HEME-A	non-polymer		852.8	4	Chemie (HEA)
4	DA, G, NA, OA, U... (C, A, D, B)	COPPER (I) ION	non-polymer		63.5	6	Chemie (CU1)
5	EA, H (C, A)	MAGNESIUM ION	non-polymer		24.3	2	Chemie (MG)
6	FA, I (C, A)	CALCIUM ION	non-polymer		40.1	2	Chemie (CA)
7	GA, J (C, A)	UNKNOWN ATOM OR ION	non-polymer			2	Chemie (UNX)
8	AA, IA, JA, K, L... (B, C, A, D)	DECYL-BETA-D-MALTOPYRANOSIDE	non-polymer		482.6	10	Chemie (DMU)
9	HA, KA, LA, MA, O... (C, A, D, B)	TRIDECANE	non-polymer		184.4	12	Chemie (TRD)
10	T (B)	HEPTANE-1,2,3-TRIOL	non-polymer		148.2	1	Chemie (HTO)
11	PA, QA, W, X (D, B)	CADMIUM ION	non-polymer		112.4	4	Chemie (CD)
12	VA, WA, XA, YA (A, B, C, D)	water	water		18.0	480	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	43
	Total formula weight	11557.2
All*	Total formula weight	196678.7

*Water molecules are not included.