1W5C

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, G (A, G)	PHOTOSYSTEM Q(B) PROTEIN 1	polymer	360	39762.3	2	UniProt (P0A444) Pfam (PF00124)	THERMOSYNECHOCOCCUS ELONGATUS	PHOTOSYSTEM II PROTEIN D1
2	B, H (B, H)	PHOTOSYSTEM II CORE LIGHT HARVESTING PROTEIN	polymer	510	56656.5	2	UniProt (Q8DIQ1) Pfam (PF00421)	THERMOSYNECHOCOCCUS ELONGATUS	PSII SUBUNIT PSBB
3	C, I (C, I)	PHOTOSYSTEM II CP43 PROTEIN	polymer	473	51666.1	2	UniProt (Q8DIF8) Pfam (PF00421)	THERMOSYNECHOCOCCUS ELONGATUS	PSII SUBUNIT PSBC
4	D, J (D, J)	PHOTOSYSTEM II REACTION CENTER D2 PROTEIN	polymer	352	39388.2	2	UniProt (Q8CM25) Pfam (PF00124)	THERMOSYNECHOCOCCUS ELONGATUS	PSII SUBUNIT PSBD
5	E, K (E, K)	CYTOCHROME B559 ALPHA SUBUNIT	polymer	84	9580.8	2	UniProt (P12238) Pfam (PF00283) Pfam (PF00284) UniProt (by SIFTS) (Q8DIP0)	THERMOSYNECHOCOCCUS ELONGATUS	PSII SUBUNIT PSBE, PSII REACTION CENTER SUBUNIT V
6	F, L (F, L)	CYTOCHROME B559 BETA SUBUNIT	polymer	44	4936.7	2	UniProt (P12239) Pfam (PF00283) UniProt (by SIFTS) (Q8DIN9)	THERMOSYNECHOCOCCUS ELONGATUS	PSII SUBUNIT PSBF, PSII REACTION CENTER SUBUNIT VI
7	M, N (O, P)	PHOTOSYSTEM II MANGANESE-STABILIZING POLYPEPTIDE	polymer	179	15251.8	2		THERMOSYNECHOCOCCUS ELONGATUS	PSII SUBUNIT PSBO, MSP
8	O, Q (S, U)	PHOTOSYSTEM II 12 KDA EXTRINSIC PROTEIN	polymer	100	8528.5	2		THERMOSYNECHOCOCCUS ELONGATUS	PSII SUBUNIT PSBU, PS II COMPLEX 12KDA EXTRINSIC PROTEIN, PSII-U
9	P, R (T, V)	CYTOCHROME C-550	polymer	163	18046.9	2	UniProt (P56150) Pfam (PF14495) UniProt (by SIFTS) (P0A386)	THERMOSYNECHOCOCCUS ELONGATUS	PSII SUBUNIT PSBV, CYTOCHROME C550, LOW POTENTIAL CYTOCHROME C
10	S, T (X, Y)	UNASSIGNED SUBUNITS	polymer	359	30570.6	2		THERMOSYNECHOCOCCUS ELONGATUS
11	AB, AC, AD, BB, BC... (C, H, J, B, D...)	CHLOROPHYLL A	non-polymer		893.5	70	Chemie (CLA)
12	BD, IB, QB, X (J, D, G, A)	PHEOPHYTIN A	non-polymer		871.2	4	Chemie (PHO)
13	AA, BA, DA, SB, TB... (A, G)	MANGANESE (II) ION	non-polymer		54.9	8	Chemie (MN)
14	CA, VB (A, G)	FE (II) ION	non-polymer		55.8	2	Chemie (FE2)
15	DD, KB (J, D)	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	2	Chemie (PL9)
16	ED, LB (L, E)	PROTOPORPHYRIN IX CONTAINING FE	non-polymer		616.5	2	Chemie (HEM)
17	FD, MB (L, F)	BETA-CAROTENE	non-polymer		536.9	2	Chemie (BCR)
18	GD, HD (T, V)	HEME C	non-polymer		618.5	2	Chemie (HEC)

Sequence modifications

E, K: 1 - 1 (PDB: 1W5C)
E, K: 2 - 84 (UniProt: P12238)

Contents of the asymmetric unit

Polymers	Number of chains	20
	Total formula weight	548776.7
Non-Polymers*	Number of molecules	92
	Total formula weight	71622.4
All*	Total formula weight	620399.0

*Water molecules are not included.