7Z6Q

Cryo-EM structure of the whole photosynthetic complex from the green sulfur bacteria

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, a	Photosystem P840 reaction center, large subunit	polymer	731	81784.6	2	UniProt (Q8KAY0) Pfam (PF00223) In PDB	Chlorobaculum tepidum TLS
2	B	Photosystem P840 reaction center iron-sulfur protein	polymer	231	23540.3	1	UniProt (Q8KAY1) Pfam (PF12838) In PDB	Chlorobaculum tepidum TLS
3	C, c	Cytochrome c	polymer	206	22741.8	2	UniProt (O07091) Pfam (PF10643) In PDB	Chlorobaculum tepidum TLS	Cytochrome c-z,Cyt c-z,Photosystem P840 reaction center cytochrome c-551
4	D	P840 reaction center 17 kDa protein	polymer	143	16633.2	1	UniProt (Q8KEP5) Pfam (PF10657) In PDB	Chlorobaculum tepidum TLS
5	E, F, G, H, I...	Bacteriochlorophyll a protein	polymer	366	40343.4	6	UniProt (Q46393) Pfam (PF02327) In PDB	Chlorobaculum tepidum TLS	BCP,BChl a protein,Fenna-Matthews-Olson protein,FMO protein
6	a, A	Bacteriochlorophyll A isomer	non-polymer		911.5	2	Chemie (GS0)
7	a, A	CHLOROPHYLL A	non-polymer		893.5	4	Chemie (CLA)
8	A, F, J, G, H...	BACTERIOCHLOROPHYLL A	non-polymer		911.5	72	Chemie (BCL)
9	A, a	[(2R,3S,4S,5R,6R)-6-[(10E,12E,14E)-2,6,10,14,19,23-hexamethyl-25-(2,3,6-trimethylphenyl)pentacosa-6,8,10,12,14,16,18,20,22,24-decaen-2-yl]oxy-3,4,5-tris(oxidanyl)oxan-2-yl]methyl dodecanoate	non-polymer		895.3	2	Chemie (F39)
10	A, a	1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE	non-polymer		723.0	4	Chemie (LHG)
11	A, a	[(2~{R})-2-hexadecanoyloxy-3-[(2~{S},3~{S},4~{R},5~{R},6~{S})-6-(hydroxymethyl)-3,4,5-tris(oxidanyl)oxan-2-yl]oxy-propyl] hexadecanoate	non-polymer		731.1	2	Chemie (IKV)
12	A, a	CALCIUM ION	non-polymer		40.1	2	Chemie (CA)
13	A, B	IRON/SULFUR CLUSTER	non-polymer		351.6	3	Chemie (SF4)
14		water	water		18.0	10	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	12
	Total formula weight	491286.9
Non-Polymers*	Number of molecules	91
	Total formula weight	78304.9
All*	Total formula weight	569591.8

*Water molecules are not included.