7VZR

Structure of the Acidobacteria homodimeric reaction center bound with cytochrome c (the smaller form)

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, G (A, a)	Photosynthetic reaction center subunit M	polymer	865	99311.4	2	UniProt (G2LDR8) Pfam (PF00223)	Chloracidobacterium thermophilum B
2	B (C)	Cytochrome c, mono-and diheme variants	polymer	221	24138.1	1	UniProt (G2LDR4) Pfam (PF00034)	Chloracidobacterium thermophilum B
3	C, I (E, e)	PscE	polymer	35	3684.5	2	UniProt (G2LK98)	Chloracidobacterium thermophilum B
4	D, J (F, f)	PscF	polymer	35	3885.7	2	UniProt (G2LEN5)	Chloracidobacterium thermophilum B
5	E, K (G, g)	PscG	polymer	45	5041.2	2	UniProt (G2LJ20)	Chloracidobacterium thermophilum B
6	F, L (H, h)	undefined polypeptide	polymer	19	1635.0	2		Chloracidobacterium thermophilum
7	H (c)	Cytochrome c domain-containing protein	polymer	145	15664.7	1	UniProt (G2LDR3) Pfam (PF13442)	Chloracidobacterium thermophilum B
8	BB, M (a, A)	[methyl 9-acetyl-14-ethyl-20-hydroxy-4,8,13,18-tetramethyl-3-{3-oxo-3-[(3,7,11,15-tetramethylhexadec-2-en-1-yl)oxy]propyl}-3,4,20,21-tetradehydrophorbine-21-carboxylatato(2-)-kappa~4~N~23~,N~24~,N~25~,N~26~]zinc	non-polymer		948.6	2	Chemie (2GO)
9	CB, DB, EB, FB, GB... (a, A)	BACTERIOCHLOROPHYLL A	non-polymer		911.5	16	Chemie (BCL)
10	KB, LB, MB, NB, QA... (a, A)	CHLOROPHYLL A	non-polymer		893.5	10	Chemie (CLA)
11	HC, Y (c, A)	LYCOPENE	non-polymer		536.9	2	Chemie (LYC)
12	OB, Z (a, A)	CALCIUM ION	non-polymer		40.1	2	Chemie (CA)
13	AA, BA, CA, QB, RB... (A, a)	[(2~{R})-2-[2-(methylamino)ethoxy-oxidanyl-phosphoryl]oxy-2-(13-methyltetradecanoyloxy)ethyl] 13-methyltetradecanoate	non-polymer		663.9	6	Chemie (85I)
14	AC, BC, CC, DA, DC... (a, A, c, e, C...)	UNKNOWN LIGAND	non-polymer		671.0	32	Chemie (UNL)
15	AB, MC, RA, YA (a, g, A, G)	[(2~{S})-2-[[(1~{R})-1,2-bis(13-methyltetradecanoyloxy)ethoxy]methyl]-3-oxidanyl-3-oxidanylidene-propyl]-trimethyl-azanium	non-polymer		671.0	4	Chemie (85N)
16	IC, TA (c, C)	HEME C	non-polymer		618.5	2	Chemie (HEC)
17	TB, VA (a, E)	[(2S)-2-[2-azanylethoxy(oxidanyl)phosphoryl]oxy-2-(13-methyltetradecanoyloxy)ethyl] 13-methyltetradecanoate	non-polymer		649.9	2	Chemie (84Q)
18	PB (a)	IRON/SULFUR CLUSTER	non-polymer		351.6	1	Chemie (SF4)
19	NC, OC (A, a)	water	water		18.0	6	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	12
	Total formula weight	266918.1
Non-Polymers*	Number of molecules	79
	Total formula weight	57598.7
All*	Total formula weight	324516.8

*Water molecules are not included.