7QRM

Cryo-EM structure of catalytically active Spinacia oleracea cytochrome b6f in complex with endogenous plastoquinones at 2.7 A resolution

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, I	Cytochrome b6	polymer	215	24186.5	2	UniProt (P00165) Pfam (PF00033) In PDB	Spinacia oleracea (spinach)
2	B, J	Cytochrome b6-f complex subunit 4	polymer	160	17456.7	2	UniProt (P00166) Pfam (PF00032) In PDB	Spinacia oleracea (spinach)	17 kDa polypeptide
3	C, K	Cytochrome f	polymer	320	35355.7	2	UniProt (P16013) Pfam (PF16639) Pfam (PF01333) In PDB	Spinacia oleracea (spinach)
4	D, L	Cytochrome b6-f complex iron-sulfur subunit, chloroplastic	polymer	230	24347.9	2	UniProt (P08980) Pfam (PF00355) In PDB	Spinacia oleracea (spinach)	Plastohydroquinone:plastocyanin oxidoreductase iron-sulfur protein,Rieske iron-sulfur protein,ISP,RISP
5	E, M	Cytochrome b6-f complex subunit 6	polymer	31	3452.2	2	UniProt (Q9M3L0) Pfam (PF05115) In PDB	Spinacia oleracea (spinach)	Cytochrome b6-f complex subunit PetL,Cytochrome b6-f complex subunit VI
6	F, N	Cytochrome b6-f complex subunit 7	polymer	36	3774.4	2	UniProt (P80883) Pfam (PF08041) In PDB	Spinacia oleracea (spinach)	Cytochrome b6-f complex subunit PetM,Cytochrome b6-f complex subunit VII
7	G, O	Cytochrome b6-f complex subunit 5	polymer	37	4172.0	2	UniProt (P69461) Pfam (PF02529) In PDB	Spinacia oleracea (spinach)	Cytochrome b6-f complex subunit PetG,Cytochrome b6-f complex subunit V
8	H, P	Cytochrome b6-f complex subunit 8	polymer	29	3170.8	2	UniProt (P61045) Pfam (PF03742) In PDB	Spinacia oleracea (spinach)	Cytochrome b6-f complex subunit PetN,Cytochrome b6-f complex subunit VIII
9	I, A	PROTOPORPHYRIN IX CONTAINING FE	non-polymer		616.5	4	Chemie (HEM)
10	C, I, A, K	HEME C	non-polymer		618.5	4	Chemie (HEC)
11	J, A	CHLOROPHYLL A	non-polymer		893.5	2	Chemie (CLA)
12	D, I, J, A, B	2,3-DIMETHYL-5-(3,7,11,15,19,23,27,31,35-NONAMETHYL-2,6,10,14,18,22,26,30,34-HEXATRIACONTANONAENYL-2,5-CYCLOHEXADIENE-1,4-DIONE-2,3-DIMETHYL-5-SOLANESYL-1,4-BENZOQUINONE	non-polymer		749.2	7	Chemie (PL9)
13	B, P, H, I, J...	UNDECYL-MALTOSIDE	non-polymer		496.6	10	Chemie (UMQ)
14	D, I, A, L	(1S)-2-{[{[(2R)-2,3-DIHYDROXYPROPYL]OXY}(HYDROXY)PHOSPHORYL]OXY}-1-[(PALMITOYLOXY)METHYL]ETHYL STEARATE	non-polymer		751.0	4	Chemie (PGT)
15	D, K	1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL	non-polymer		795.1	2	Chemie (SQD)
16	D, L	FE2/S2 (INORGANIC) CLUSTER	non-polymer		175.8	2	Chemie (FES)
17	F, P	BETA-CAROTENE	non-polymer		536.9	2	Chemie (BCR)

Contents of the asymmetric unit

Polymers	Number of chains	16
	Total formula weight	231832.3
Non-Polymers*	Number of molecules	37
	Total formula weight	22956.9
All*	Total formula weight	254789.3

*Water molecules are not included.