8XR6

Cryo-EM structure of cryptophyte photosystem II

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B (a, A)	Photosystem II protein D1	polymer	360	39590.9	2	UniProt (A0A222AI41) Pfam (PF00124)	Chroomonas placoidea	PSII D1 protein,Photosystem II Q(B) protein
2	C, G (0, 4)	ACPII-4	polymer	219	23658.5	2		Chroomonas placoidea
3	D, J (1, 7)	ACPII-1	polymer	218	23755.6	2		Chroomonas placoidea
4	E, K (2, 8)	ACPII-2	polymer	200	22144.3	2		Chroomonas placoidea
5	F, L (3, 9)	ACPII-3	polymer	229	24136.2	2		Chroomonas placoidea
6	H, MA (5, g)	ACPII-5	polymer	216	23400.1	2		Chroomonas placoidea
7	I, VA (6, p)	ACPII-6	polymer	234	25022.0	2		Chroomonas placoidea
8	HA, M (B, b)	Photosystem II CP47 reaction center protein	polymer	509	56354.2	2	UniProt (A0A222AIE3) Pfam (PF00421)	Chroomonas placoidea	PSII 47 kDa protein,Protein CP-47
9	IA, N (C, c)	PsbC_CP43	polymer	473	52077.4	2	Pfam (PF00421) UniProt (by SIFTS) (A0A222AI36)	Chroomonas placoidea
10	JA, O (D, d)	Photosystem II D2 protein	polymer	351	39216.8	2	UniProt (A0A222AI37) Pfam (PF00124)	Chroomonas placoidea	PSII D2 protein,Photosystem Q(A) protein
11	KA, P (E, e)	Cytochrome b559 subunit alpha	polymer	84	9505.7	2	UniProt (A0A222AI74) Pfam (PF00283) Pfam (PF00284)	Chroomonas placoidea	PSII reaction center subunit V
12	LA, Q (F, f)	Cytochrome b559 subunit beta	polymer	42	4845.8	2	UniProt (A0A222AI51) Pfam (PF00283)	Chroomonas placoidea	PSII reaction center subunit VI
13	NA, R (H, h)	Photosystem II reaction center protein H	polymer	67	7519.9	2	UniProt (A0A222AIE4) Pfam (PF00737)	Chroomonas placoidea	PSII-H
14	OA, S (I, i)	Photosystem II reaction center protein I	polymer	38	4424.1	2	UniProt (A0A222AI80) Pfam (PF02532)	Chroomonas placoidea	PSII-I,PSII 4.4 kDa protein
15	PA, T (J, j)	Photosystem II reaction center protein J	polymer	39	3964.6	2	UniProt (A0A222AI54) Pfam (PF01788)	Chroomonas placoidea	PSII-J
16	QA, U (K, k)	Photosystem II reaction center protein K	polymer	45	5005.1	2	UniProt (A0A222AIA0) Pfam (PF02533)	Chroomonas placoidea	PSII-K
17	RA, V (L, l)	Photosystem II reaction center protein L	polymer	38	4363.1	2	UniProt (A0A222AI58) Pfam (PF02419)	Chroomonas placoidea	PSII-L
18	SA, W (M, m)	PsbM	polymer	37	3933.6	2		Chroomonas placoidea
19	TA, X (N, n)	Psb-gama_linker	polymer	297	31745.1	2		Chroomonas placoidea
20	UA, Y (O, o)	PsbO	polymer	300	32104.0	2		Chroomonas placoidea
21	WA, Z (Q, q)	PsbQ	polymer	144	15748.9	2		Chroomonas placoidea
22	AA, XA (T, t)	Photosystem II reaction center protein T	polymer	32	3664.4	2	UniProt (A0A222AID2) Pfam (PF01405)	Chroomonas placoidea	PSII-T
23	BA, YA (U, u)	PsbU	polymer	121	13211.1	2		Chroomonas placoidea
24	CA, ZA (V, v)	Photosystem II cytochrome c550	polymer	163	17708.2	2	UniProt (A0A222AI35) Pfam (PF14495)	Chroomonas placoidea
25	AB, DA (W, w)	PsbW	polymer	130	13751.9	2		Chroomonas placoidea
26	BB, EA (X, x)	Photosystem II reaction center protein X	polymer	39	4149.9	2	UniProt (A0A222AI61) Pfam (PF06596)	Chroomonas placoidea
27	CB, FA (Y, y)	Photosystem II reaction center protein Psb30	polymer	34	3763.6	2	UniProt (A0A222AI69) Pfam (PF05969)	Chroomonas placoidea	Photosystem II reaction center protein Ycf12
28	DB, GA (Z, z)	Photosystem II reaction center protein Z	polymer	62	6574.0	2	UniProt (A0A222AI96) Pfam (PF01737)	Chroomonas placoidea	PSII-Z
29	EB, QB (a, A)	CA-MN4-O5 CLUSTER	non-polymer		339.8	2	Chemie (OEX)
30	FB, RB (a, A)	FE (II) ION	non-polymer		55.8	2	Chemie (FE2)
31	GB, SB (a, A)	BICARBONATE ION	non-polymer		61.0	2	Chemie (BCT)
32	HB, TB (a, A)	CHLORIDE ION	non-polymer		35.5	2	Chemie (CL)
33	AD, AF, AH, AJ, AK... (1, 4, 7, B, C...)	CHLOROPHYLL A	non-polymer		893.5	210	Chemie (CLA)
34	KB, LN, SK, WB (a, d, D, A)	PHEOPHYTIN A	non-polymer		871.2	4	Chemie (PHO)
35	CL, CN, DN, ED, EN... (H, c, 1, 4, 7...)	(6'R,11cis,11'cis,13cis,15cis)-4',5'-didehydro-5',6'-dihydro-beta,beta-carotene	non-polymer		536.9	24	Chemie (8CT)
36	NB, PN, WK, ZB (a, d, D, A)	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	4	Chemie (PL9)
37	AC, AE, AG, AI, CI... (A, 3, 5, 8, 9...)	1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE	non-polymer		723.0	24	Chemie (LHG)
38	CD, CO, DD, EH, FH... (1, g, 7, 0, p...)	Chlorophyll c2	non-polymer		608.9	14	Chemie (KC2)
39	BI, CG, FD, FO, GD... (9, 6, 1, g, 4...)	(1~{R})-3,5,5-trimethyl-4-[(3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E})-3,7,12,16-tetramethyl-18-[(4~{R})-2,6,6-trimethyl-4-oxidanyl-cyclohexen-1-yl]octadeca-3,5,7,9,11,13,15-heptaen-1,17-diynyl]cyclohex-3-en-1-ol	non-polymer		564.8	48	Chemie (II0)
40	IO, OP, SE, TG, UI... (g, p, 3, 6, 9...)	(1~{R})-3,5,5-trimethyl-4-[(3~{E},5~{E},7~{E},9~{E},11~{E},13~{E},15~{E},17~{E})-3,7,12,16-tetramethyl-18-(2,6,6-trimethylcyclohexen-1-yl)octadeca-3,5,7,9,11,13,15,17-octaen-1-ynyl]cyclohex-3-en-1-ol	non-polymer		550.9	8	Chemie (IHT)
41	DL, EL, NO, OM, OO... (J, L, j, c, l...)	1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL	non-polymer		795.1	8	Chemie (SQD)
42	HN, LM, ML, NM, OK... (c, b, T, C, W...)	1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE	non-polymer		787.2	16	Chemie (LMG)
43	BL, FN, GN, IN, LO... (H, c, h, C)	DIGALACTOSYL DIACYL GLYCEROL (DGDG)	non-polymer		949.3	8	Chemie (DGD)
44	AL, NL, RP, TN (F, V, v, f)	PROTOPORPHYRIN IX CONTAINING FE	non-polymer		616.5	4	Chemie (HEM)
45	AQ, BQ, CQ, DQ, EQ... (W, b, c, o, u...)	water	water		18.0	84	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	56
	Total formula weight	1030678.1
Non-Polymers*	Number of molecules	380
	Total formula weight	294394.7
All*	Total formula weight	1325072.9

*Water molecules are not included.