3OMA

Catalytic core subunits (I and II) of cytochrome C oxidase from Rhodobacter sphaeroides with K362M mutation

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, aa3 type, subunit I	polymer	535	59542.4	2	UniProt (Q3J5A7) Pfam (PF00115)	Rhodobacter sphaeroides 2.4.1
2	B, D (B, D)	Cytochrome c oxidase subunit 2	polymer	256	28617.6	2	UniProt (Q3J5G0) Pfam (PF02790) Pfam (PF00116)	Rhodobacter sphaeroides 2.4.1
3	BA, E (C, A)	HYDROXIDE ION	non-polymer		17.0	2	Chemie (OH)
4	CA, DA, EA, F, G... (C, A, D, B)	DECYL-BETA-D-MALTOPYRANOSIDE	non-polymer		482.6	11	Chemie (DMU)
5	H, HA, I, J, M... (A, C, D, B)	TRIDECANE	non-polymer		184.4	9	Chemie (TRD)
6	FA, GA, K, L (C, A)	HEME-A	non-polymer		852.8	4	Chemie (HEA)
7	IA, O, PA, X (C, A, D, B)	COPPER (II) ION	non-polymer		63.5	4	Chemie (CU)
8	JA, P (C, A)	MAGNESIUM ION	non-polymer		24.3	2	Chemie (MG)
9	KA, Q (C, A)	CALCIUM ION	non-polymer		40.1	2	Chemie (CA)
10	W (B)	(2S,3R)-heptane-1,2,3-triol	non-polymer		148.2	1	Chemie (HTH)
11	QA, Y (D, B)	COPPER (I) ION	non-polymer		63.5	2	Chemie (CU1)
12	AA, RA, SA, Z (B, D)	CADMIUM ION	non-polymer		112.4	4	Chemie (CD)
13	TA, UA, VA, WA (A, B, C, D)	water	water		18.0	452	Chemie (HOH)

Sequence modifications

A, C: 17 - 551 (UniProt: Q3J5A7)

PDB	External Database	Details
Met 362	Lys 362	engineered mutation

B, D: 30 - 281 (UniProt: Q3J5G0)

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

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	176320.0
Non-Polymers*	Number of molecules	41
	Total formula weight	11520.7
All*	Total formula weight	187840.7

*Water molecules are not included.