9AU4

Cryo-EM structure of a photosystem I variant containing an unusual plastoquinone derivative in its electron transfer chain

This is a non-PDB format compatible entry.

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, L, W (G, a, A)	Photosystem I P700 chlorophyll a apoprotein A1	polymer	751	83036.4	3	UniProt (P29254) Pfam (PF00223)	Synechocystis sp. PCC 6803	PsaA
2	B, M, X (H, b, B)	Photosystem I P700 chlorophyll a apoprotein A2	polymer	730	81298.5	3	Pfam (PF00223) UniProt (by SIFTS) (P29255)	Synechocystis sp. PCC 6803
3	C, N, Y (N, c, C)	Photosystem I iron-sulfur center	polymer	81	8837.3	3	UniProt (P32422) Pfam (PF12838)	Synechocystis sp. PCC 6803	9 kDa polypeptide,PSI-C,Photosystem I subunit VII,PsaC
4	D, O, Z (O, d, D)	Photosystem I reaction center subunit II	polymer	141	15663.7	3	UniProt (P19569) Pfam (PF02531)	Synechocystis sp. PCC 6803	Photosystem I 16 kDa polypeptide,PSI-D
5	AA, E, P (P, e, E)	Photosystem I reaction center subunit IV	polymer	74	8154.1	3	UniProt (P12975) Pfam (PF02427)	Synechocystis sp. PCC 6803	Photosystem I 8.1 kDa protein,p30 protein
6	BA, F, Q (Q, f, F)	Photosystem I reaction center subunit III	polymer	165	18267.1	3	UniProt (P29256) Pfam (PF02507)	Synechocystis sp. PCC 6803	PSI-F
7	CA, G, R (R, i, I)	Photosystem I reaction center subunit VIII	polymer	40	4414.1	3	UniProt (Q55330) Pfam (PF00796)	Synechocystis sp. PCC 6803
8	DA, H, S (S, j, J)	Photosystem I reaction center subunit IX	polymer	40	4535.4	3	UniProt (Q55329) Pfam (PF01701)	Synechocystis sp. PCC 6803
9	EA, I, T (T, k, K)	Photosystem I reaction center subunit PsaK 2	polymer	90	9312.1	3	UniProt (P74564) Pfam (PF01241)	Synechocystis sp. PCC 6803	Photosystem I subunit X 2
10	FA, J, U (U, l, L)	Photosystem I reaction center subunit XI	polymer	157	16631.8	3	UniProt (P37277) Pfam (PF02605)	Synechocystis sp. PCC 6803	PSI subunit V,PSI-L
11	GA, K, V (V, m, M)	Photosystem I reaction center subunit XII	polymer	31	3382.1	3	UniProt (P72986) Pfam (PF07465)	Synechocystis sp. PCC 6803	PSI-M
12	AB, AD, AF, AG, AI... (G, H, U, a, b...)	CHLOROPHYLL A	non-polymer		893.5	282	Chemie (CLA)
13	CM, JE, NJ, RO, UB... (A, H, b, B, G...)	2,3-dimethyl-5-[(2E,7R,11R)-3,7,11,15-tetramethylhexadec-2-en-1-yl]cyclohexa-2,5-diene-1,4-dione	non-polymer		414.7	6	Chemie (A1AGD) PubChem (68667626) PubChem (3080580) PubChem (6449782) PubChem (10454482) PubChem (162873516)
14	DM, KE, LE, OJ, PJ... (A, N, c, C, G...)	IRON/SULFUR CLUSTER	non-polymer		351.6	9	Chemie (SF4)
15	AE, AH, AK, AP, BE... (H, a, k, J, b...)	BETA-CAROTENE	non-polymer		536.9	45	Chemie (BCR) PubChem (573) PubChem (21672398) PubChem (176490061) PubChem (177696266) PubChem (46783370) PubChem (46846294) PubChem (54603957) PubChem (54612003) PubChem (86765360) PubChem (5315709) PubChem (5280489) PubChem (91827292) PubChem (92863345) PubChem (5353436) PubChem (5356616) PubChem (5927371) PubChem (124919640) PubChem (92863346) PubChem (92863347) PubChem (92863348) PubChem (6477957) PubChem (100990628) PubChem (101525094) PubChem (101525095) PubChem (9828626) PubChem (10256668) PubChem (12305639) PubChem (12305640) PubChem (12305642) PubChem (12305644) PubChem (12305647) PubChem (12305652) PubChem (146673260) PubChem (152743364) PubChem (124919639) PubChem (160505766) PubChem (129651951) PubChem (132274419) PubChem (145925599) PubChem (159562859) PubChem (172654026) PubChem (172878405) PubChem (173398668)
16	AC, CC, EE, EH, GH... (G, H, a, b, A...)	1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE	non-polymer		723.0	12	Chemie (LHG) PubChem (46936292) PubChem (446440) PubChem (73416066) PubChem (65144) PubChem (9547104) PubChem (13305396) PubChem (11846227) PubChem (138986743)
17	BC, DC, DE, FH, HH... (G, H, a, b, A...)	1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE	non-polymer		787.2	9	Chemie (LMG)
18	GC, KH, OM (G, a, A)	beta,beta-carotene-4,4'-dione	non-polymer		564.8	3	Chemie (45D)
19	HC, LH, PM (G, a, A)	CHLORIDE ION	non-polymer		35.5	3	Chemie (CL) PubChem (312)
20	DJ, IF, IO, MK, SP... (b, V, B, m, M...)	beta,beta-caroten-4-one	non-polymer		550.9	6	Chemie (ECH)
21	DK, FE, HP, JJ, OO... (l, H, L, b, B...)	CALCIUM ION	non-polymer		40.1	6	Chemie (CA) PubChem (271)
22	GE, KJ, PO (H, b, B)	(3'R)-3'-hydroxy-beta,beta-caroten-4-one	non-polymer		566.9	3	Chemie (EQ3)
23	HE, LJ, QE, QO, UJ... (H, b, Q, B, f...)	(1R,2S)-4-{(1E,3E,5E,7E,9E,11E,13E,15E,17E)-18-[(4S)-4-hydroxy-2,6,6-trimethylcyclohex-1-en-1-yl]-3,7,12,16-tetramethyloctadeca-1,3,5,7,9,11,13,15,17-nonaen-1-yl}-2,5,5-trimethylcyclohex-3-en-1-ol	non-polymer		568.9	6	Chemie (ZEX) PubChem (91827303) PubChem (137350207)
24	FF, JF, JK, NK, NP... (U, V, l, m, L...)	1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL	non-polymer		795.1	6	Chemie (SQD) PubChem (25147486) PubChem (25235342) PubChem (42607399) PubChem (159321) PubChem (481096) PubChem (5459390) PubChem (102201395) PubChem (134765349) PubChem (9810997) PubChem (9918745) PubChem (10219110) PubChem (10373133) PubChem (14463145)
25	GF, KK, OP (U, l, L)	DIGALACTOSYL DIACYL GLYCEROL (DGDG)	non-polymer		949.3	3	Chemie (DGD) PubChem (24865462) PubChem (24865463) PubChem (50904896) PubChem (53480668) PubChem (46936671) PubChem (448441) PubChem (447899) PubChem (4629344) PubChem (15991538) PubChem (154573294) PubChem (171123158) PubChem (134746152) PubChem (140529801)
26	HF, LK, PP (U, l, L)	DODECYL-BETA-D-MALTOSIDE	non-polymer		510.6	3	Chemie (LMT)
27	AQ, BQ, CQ, DQ, EQ... (U, a, b, c, d...)	water	water		18.0	909	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	33
	Total formula weight	760597.7
Non-Polymers*	Number of molecules	402
	Total formula weight	317146.7
All*	Total formula weight	1077744.4

*Water molecules are not included.