3A0B

Crystal structure of Br-substituted Photosystem II complex

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 Q(B) protein	polymer	344	38295.7	2	UniProt (P51765) Pfam (PF00124) In PDB	Thermosynechococcus vulcanus (Synechococcus vulcanus)	32 kDa thylakoid membrane protein, Photosystem II protein D1
2	B, b	Photosystem II core light harvesting protein	polymer	488	54042.5	2	PDB (3A0H) Pfam (PF00421) UniProt (by SIFTS) (D0VWR1) In PDB	Thermosynechococcus vulcanus (Synechococcus vulcanus)
3	C, c	Photosystem II CP43 protein	polymer	447	48763.8	2	PDB (3A0H) Pfam (PF00421) UniProt (by SIFTS) (D0VWR7) In PDB	Thermosynechococcus vulcanus (Synechococcus vulcanus)
4	D, d	Photosystem II D2 protein	polymer	340	38118.6	2	PDB (3A0H) Pfam (PF00124) UniProt (by SIFTS) (D0VWR8) In PDB	Thermosynechococcus vulcanus (Synechococcus vulcanus)
5	E, e	Cytochrome b559 subunit alpha	polymer	83	9477.7	2	UniProt (P12238) Pfam (PF00283) Pfam (PF00284) In PDB	Thermosynechococcus vulcanus (Synechococcus vulcanus)	PSII reaction center subunit V
6	F, f	Cytochrome b559 subunit beta	polymer	44	4936.7	2	UniProt (P12239) Pfam (PF00283) In PDB	Thermosynechococcus vulcanus (Synechococcus vulcanus)	PSII reaction center subunit VI
7	H, h	Photosystem II reaction center protein H	polymer	64	7170.5	2	PDB (3A0H) Pfam (PF00737) UniProt (by SIFTS) (P19052) In PDB	Thermosynechococcus vulcanus (Synechococcus vulcanus)
8	I, i	Photosystem II reaction center protein I	polymer	35	4052.9	2	PDB (3A0H) Pfam (PF02532) UniProt (by SIFTS) (P12240) In PDB	Thermosynechococcus vulcanus (Synechococcus vulcanus)
9	J, j	Photosystem II reaction center protein J	polymer	40	4105.9	2	UniProt (Q7DGD4) Pfam (PF01788) In PDB	Thermosynechococcus vulcanus (Synechococcus vulcanus)	PSII-J
10	K, k	Photosystem II reaction center protein K	polymer	36	3891.7	2	PDB (3A0H) Pfam (PF02533) UniProt (by SIFTS) (P19054) In PDB	Thermosynechococcus vulcanus (Synechococcus vulcanus)
11	L, l	Photosystem II reaction center protein L	polymer	37	4299.0	2	UniProt (P12241) Pfam (PF02419) In PDB	Thermosynechococcus vulcanus (Synechococcus vulcanus)	PSII-L, PSII 5 kDa protein
12	M, m	Photosystem II reaction center protein M	polymer	36	4015.7	2	PDB (3A0H) Pfam (PF05151) UniProt (by SIFTS) (P12312) In PDB	Thermosynechococcus vulcanus (Synechococcus vulcanus)
13	O, o	Photosystem II manganese-stabilizing polypeptide	polymer	242	26452.5	2	PDB (3A0H) Pfam (PF01716) UniProt (by SIFTS) (D0VWR2) In PDB	Thermosynechococcus vulcanus (Synechococcus vulcanus)
14	T, t	Photosystem II reaction center protein T	polymer	30	3620.4	2	UniProt (P12313) Pfam (PF01405) In PDB	Thermosynechococcus vulcanus (Synechococcus vulcanus)	PSII-T, PSII-Tc
15	U, u	Photosystem II 12 kDa extrinsic protein	polymer	98	11095.4	2	PDB (3A0H) Pfam (PF06514) UniProt (by SIFTS) (P56152) In PDB	Thermosynechococcus vulcanus (Synechococcus vulcanus)
16	V, v	Cytochrome c-550	polymer	137	15148.3	2	UniProt (P0A387) Pfam (PF14495) In PDB	Thermosynechococcus vulcanus (Synechococcus vulcanus)	Cytochrome c550, Low-potential cytochrome c
17	X, x	Photosystem II reaction center protein X	polymer	34	3477.2	2	PDB (3A0H) Pfam (PF06596) UniProt (by SIFTS) (D0VWR4) In PDB	Thermosynechococcus vulcanus (Synechococcus vulcanus)
18	Y, y	Photosystem II reaction center protein ycf12	polymer	28	2999.8	2	PDB (3A0H) Pfam (PF05969) UniProt (by SIFTS) (D0VWR3) In PDB	Thermosynechococcus vulcanus (Synechococcus vulcanus)
19	N, n	Photosystem II reaction center protein Y	polymer	24	2060.5	2		Thermosynechococcus vulcanus (Synechococcus vulcanus)
20	Z, z	Photosystem II reaction center protein Z	polymer	62	6766.2	2	PDB (3A0H) Pfam (PF01737) UniProt (by SIFTS) (D0VWR5) In PDB	Thermosynechococcus vulcanus (Synechococcus vulcanus)
21	a, A	OXYGEN EVOLVING SYSTEM	non-polymer		323.8	2	Chemie (OEC)
22	a, A	FE (II) ION	non-polymer		55.8	2	Chemie (FE2)
23	B, C, b, a, c...	CHLOROPHYLL A	non-polymer		893.5	70	Chemie (CLA)
24	a, A, d	PHEOPHYTIN A	non-polymer		871.2	4	Chemie (PHO)
25	d, a, D, A	5-[(2E,6E,10E,14E,18E,22E)-3,7,11,15,19,23,27-HEPTAMETHYLOCTACOSA-2,6,10,14,18,22,26-HEPTAENYL]-2,3-DIMETHYLBENZO-1,4-QUINONE	non-polymer		613.0	4	Chemie (PQ9)
26	Z, b, d, C, h...	BETA-CAROTENE	non-polymer		536.9	22	Chemie (BCR)
27	a, A	1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE	non-polymer		723.0	2	Chemie (LHG)
28	d, a, A	BROMIDE ION	non-polymer		79.9	4	Chemie (BR)
29	d, b, D, B, J...	(1S)-2-(ALPHA-L-ALLOPYRANOSYLOXY)-1-[(TRIDECANOYLOXY)METHYL]ETHYL PALMITATE	non-polymer		689.0	8	Chemie (MGE)
30	C, h, H, c	DIGALACTOSYL DIACYL GLYCEROL (DGDG)	non-polymer		949.3	8	Chemie (DGD)
31	e, v, E, V	PROTOPORPHYRIN IX CONTAINING FE	non-polymer		616.5	4	Chemie (HEM)

Contents of the asymmetric unit

Polymers	Number of chains	40
	Total formula weight	585581.8
Non-Polymers*	Number of molecules	130
	Total formula weight	98389.1
All*	Total formula weight	683970.9

*Water molecules are not included.