2AXT

Crystal Structure of Photosystem II from Thermosynechococcus elongatus

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	38265.6	2	UniProt (P0A445) Pfam (PF00124) UniProt (by SIFTS) (P0A444) In PDB	Thermosynechococcus elongatus	Reaction centre subunit D1, 32 kDa thylakoid membrane protein, Photosystem II protein D1
2	B, b	CP47 protein	polymer	510	56656.5	2	GenBank (11761354) Pfam (PF00421) UniProt (by SIFTS) (Q8DIQ1) In PDB	Thermosynechococcus elongatus	Antenna subunit CP47
3	C, c	photosystem II CP43 protein	polymer	473	51666.1	2	GenBank (22295356) Pfam (PF00421) UniProt (by SIFTS) (Q8DIF8) In PDB	Thermosynechococcus elongatus	Antenna subunit CP43
4	D, d	photosystem II reaction center D2 protein	polymer	352	39388.2	2	GenBank (22295355) Pfam (PF00124) UniProt (by SIFTS) (Q8CM25) In PDB	Thermosynechococcus elongatus	Reaction centre subunit D2
5	E, e	Cytochrome b559 alpha subunit	polymer	84	9580.8	2	UniProt (Q8DIP0) Pfam (PF00283) Pfam (PF00284) In PDB	Thermosynechococcus elongatus	Cyt b-559 subunit alpha, PSII reaction center subunit V
6	F, f	Cytochrome b559 beta subunit	polymer	45	5067.9	2	UniProt (Q8DIN9) Pfam (PF00283) In PDB	Thermosynechococcus elongatus	Cyt b-559 subunit beta, PSII reaction center subunit VI
7	H, h	Photosystem II reaction center H protein	polymer	66	7358.8	2	UniProt (Q8DJ43) Pfam (PF00737) In PDB	Thermosynechococcus elongatus	Subunit PsbH, PSII-H
8	I, i	Photosystem II reaction center I protein	polymer	38	4410.2	2	UniProt (Q8DJZ6) Pfam (PF02532) In PDB	Thermosynechococcus elongatus	Subunit PsbI, PSII 4.4 kDa protein
9	J, j	Photosystem II reaction center J protein	polymer	40	4105.9	2	UniProt (P59087) Pfam (PF01788) In PDB	Thermosynechococcus elongatus	Subunit PsbJ
10	K, k	Photosystem II reaction center protein K	polymer	37	4101.9	2	UniProt (Q9F1K9) Pfam (PF02533) In PDB	Thermosynechococcus elongatus	Subunit PsbK, PSII-K
11	L, l	Photosystem II reaction center L protein	polymer	37	4299.0	2	UniProt (Q8DIN8) Pfam (PF02419) In PDB	Thermosynechococcus elongatus	Subunit PsbL, PSII-L, PSII 5 kDa protein
12	M, m	Photosystem II reaction center M protein	polymer	36	3981.7	2	UniProt (Q8DHA7) Pfam (PF05151) In PDB	Thermosynechococcus elongatus	Subunit PsbM, PSII-M
13	O, o	Photosystem II manganese-stabilizing polypeptide	polymer	247	26923.0	2	UniProt (P0A431) Pfam (PF01716) In PDB	Thermosynechococcus elongatus	Subunit PsbO, MSP
14	T, t	Photosystem II reaction center T protein	polymer	32	3878.7	2	UniProt (Q8DIQ0) Pfam (PF01405) In PDB	Thermosynechococcus elongatus	Subunit PsbT, PSII-T, PSII-Tc
15	U, u	Photosystem II 12 kDa extrinsic protein	polymer	104	11656.0	2	UniProt (Q9F1L5) Pfam (PF06514) In PDB	Thermosynechococcus elongatus	Subunit PsbU, PS II complex 12 kDa extrinsic protein, PSII-U
16	V, v	Cytochrome c-550	polymer	137	15148.3	2	UniProt (P0A386) Pfam (PF14495) In PDB	Thermosynechococcus elongatus	Cyt c-550, subunit PsbV, Cytochrome c550, Low potential cytochrome c
17	X, x	Unassigned subunits	polymer	129	10996.5	2		Thermosynechococcus elongatus
18	Z, z	Photosystem II reaction center Z protein	polymer	62	6766.2	2	UniProt (Q8DHJ2) Pfam (PF01737) In PDB	Thermosynechococcus elongatus	Subunit PsbZ
19	A, a	FE (II) ION	non-polymer		55.8	2	Chemie (FE2)
20	B, a, c, D, C...	CHLOROPHYLL A	non-polymer		893.5	70	Chemie (CLA)
21	a, A	PHEOPHYTIN A	non-polymer		871.2	4	Chemie (PHO)
22	a, D, 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)
23	a, A	OXYGEN EVOLVING SYSTEM	non-polymer		323.8	2	Chemie (OEC)
24	b, t, D, a, c...	BETA-CAROTENE	non-polymer		536.9	22	Chemie (BCR)
25	a, A	1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE	non-polymer		723.0	2	Chemie (LHG)
26	t, L, d, A, a	1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL	non-polymer		795.1	6	Chemie (SQD)
27	m, t, a, M, T...	DODECYL-BETA-D-MALTOSIDE	non-polymer		510.6	6	Chemie (LMT)
28	l, b, D, I, L...	(1S)-2-(ALPHA-L-ALLOPYRANOSYLOXY)-1-[(TRIDECANOYLOXY)METHYL]ETHYL PALMITATE	non-polymer		689.0	12	Chemie (MGE)
29	C, c	UNKNOWN	non-polymer		103.1	34	Chemie (UNK)
30	C, c, H, h	DIGALACTOSYL DIACYL GLYCEROL (DGDG)	non-polymer		949.3	8	Chemie (DGD)
31	D, d	BICARBONATE ION	non-polymer		61.0	2	Chemie (BCT)
32	v, F, V, f	PROTOPORPHYRIN IX CONTAINING FE	non-polymer		616.5	4	Chemie (HEM)
33	k, K	CALCIUM ION	non-polymer		40.1	2	Chemie (CA)

Contents of the asymmetric unit

Polymers	Number of chains	36
	Total formula weight	608502.7
Non-Polymers*	Number of molecules	180
	Total formula weight	112368.1
All*	Total formula weight	720870.8

*Water molecules are not included.