4IL6

Structure of Sr-substituted 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, U (A, a)	Photosystem Q(B) protein	polymer	334	37029.2	2	UniProt (P51765) Pfam (PF00124)	Thermosynechococcus vulcanus	32 kDa thylakoid membrane protein, Photosystem II protein D1
2	B, V (B, b)	Photosystem II core light harvesting protein	polymer	505	56068.7	2	Pfam (PF00421) UniProt (by SIFTS) (D0VWR1)	Thermosynechococcus vulcanus
3	C, W (C, c)	Photosystem II CP43 protein	polymer	451	49207.3	2	Pfam (PF00421) UniProt (by SIFTS) (D0VWR7)	Thermosynechococcus vulcanus
4	D, X (D, d)	Photosystem II D2 protein	polymer	342	38404.9	2	Pfam (PF00124) UniProt (by SIFTS) (D0VWR8)	Thermosynechococcus vulcanus	PSII D2 protein, Photosystem Q(A) protein
5	E, Y (E, e)	Cytochrome b559 subunit alpha	polymer	80	9192.3	2	UniProt (P12238) Pfam (PF00283) Pfam (PF00284)	Thermosynechococcus vulcanus	PSII reaction center subunit V
6	F, Z (F, f)	Cytochrome b559 subunit beta	polymer	34	3868.6	2	UniProt (P12239) Pfam (PF00283)	Thermosynechococcus vulcanus	PSII reaction center subunit VI
7	AA, G (H, h)	Photosystem II reaction center protein H	polymer	63	7057.3	2	Pfam (PF00737) UniProt (by SIFTS) (P19052)	Thermosynechococcus vulcanus	PSII-H
8	BA, H (I, i)	Photosystem II reaction center protein I	polymer	36	4196.0	2	Pfam (PF02532) UniProt (by SIFTS) (P12240)	Thermosynechococcus vulcanus	PSII-I, PSII 4.4 kDa protein
9	CA, I (J, j)	Photosystem II reaction center protein J	polymer	37	3756.4	2	UniProt (Q7DGD4) Pfam (PF01788)	Thermosynechococcus vulcanus	PSII-J
10	DA, J (K, k)	Photosystem II reaction center protein K	polymer	37	4101.9	2	Pfam (PF02533) UniProt (by SIFTS) (P19054)	Thermosynechococcus vulcanus	PSII-K
11	EA, K (L, l)	Photosystem II reaction center protein L	polymer	37	4299.0	2	UniProt (P12241) Pfam (PF02419)	Thermosynechococcus vulcanus	PSII-L, PSII 5 kDa protein
12	FA, L (M, m)	Photosystem II reaction center protein M	polymer	34	3835.5	2	Pfam (PF05151) UniProt (by SIFTS) (P12312)	Thermosynechococcus vulcanus	PSII-M
13	GA, M (O, o)	Photosystem II manganese-stabilizing polypeptide	polymer	244	26651.7	2	Pfam (PF01716) UniProt (by SIFTS) (D0VWR2)	Thermosynechococcus vulcanus
14	HA, N (T, t)	Photosystem II reaction center protein T	polymer	31	3777.6	2	UniProt (P12313) Pfam (PF01405)	Thermosynechococcus vulcanus	PSII-T, PSII-Tc
15	IA, O (U, u)	Photosystem II 12 kDa extrinsic protein	polymer	97	10966.3	2	Pfam (PF06514) UniProt (by SIFTS) (P56152)	Thermosynechococcus vulcanus	PS II complex 12 kDa extrinsic protein, PSII-U
16	JA, P (V, v)	Cytochrome c-550	polymer	137	15148.3	2	UniProt (P0A387) Pfam (PF14495)	Thermosynechococcus vulcanus	Cytochrome c550, Low-potential cytochrome c
17	KA, Q (Y, y)	Photosystem II reaction center protein ycf12	polymer	30	3228.0	2	Pfam (PF05969) UniProt (by SIFTS) (D0VWR3)	Thermosynechococcus vulcanus
18	LA, R (X, x)	Photosystem II reaction center protein X	polymer	40	4191.0	2	Pfam (PF06596) UniProt (by SIFTS) (D0VWR4)	Thermosynechococcus vulcanus
19	MA, S (Z, z)	Photosystem II reaction center protein Z	polymer	62	6794.2	2	Pfam (PF01737) UniProt (by SIFTS) (D0VWR5)	Thermosynechococcus vulcanus	PSII-Z
20	T (R)	Photosystem II protein Y	polymer	34	3859.7	1	UniProt (Q8DKM3) Pfam (PF06298)	Thermosynechococcus elongatus BP-1
21	NA, OF (A, a)	SR-MN4-O5 CLUSTER	non-polymer		387.4	2	Chemie (OER)
22	OA, PF (A, a)	FE (II) ION	non-polymer		55.8	2	Chemie (FE2)
23	PA, QA, QF, RF (A, a)	CHLORIDE ION	non-polymer		35.5	4	Chemie (CL)
24	AD, AI, BI, GB, HB... (C, c, B, b, D...)	CHLOROPHYLL A	non-polymer		893.5	70	Chemie (CLA)
25	SD, TA, VF, WF (D, A, a)	PHEOPHYTIN A	non-polymer		871.2	4	Chemie (PHO)
26	AF, AH, BD, BH, BK... (T, b, C, t, c...)	BETA-CAROTENE	non-polymer		536.9	22	Chemie (BCR)
27	VD, WA, WI, ZF (D, A, 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)
28	CB, CH, GI, LJ, MF... (A, b, c, f, a...)	1,2-DI-O-ACYL-3-O-[6-DEOXY-6-SULFO-ALPHA-D-GLUCOPYRANOSYL]-SN-GLYCEROL	non-polymer		795.1	8	Chemie (SQD)
29	AE, AG, AJ, BC, FD... (D, a, d, B, C...)	1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE	non-polymer		787.2	12	Chemie (LMG)
30	AB, BF, CG, DG, EE... (A, U, a, D, V...)	DIMETHYL SULFOXIDE	non-polymer		78.1	35	Chemie (DMS)
31	BB, CE, CJ, CK, DE... (A, D, d, t, B...)	UNKNOWN LIGAND	non-polymer			24	Chemie (UNL)
32	BG, CC, DB, DK, EB... (a, B, A, t, b...)	DODECYL-BETA-D-MALTOSIDE	non-polymer		510.6	15	Chemie (LMT)
33	FB, FF, FG, GE, GJ... (A, V, a, D, d...)	GLYCEROL	non-polymer		92.1	12	Chemie (GOL)
34	AC, DH, IE, JJ, XD... (B, b, E, e, D...)	1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE	non-polymer		723.0	10	Chemie (LHG)
35	AK, BE, BJ, DC, DF... (o, D, d, B, V...)	heptyl 1-thio-beta-D-glucopyranoside	non-polymer		294.4	17	Chemie (HTG)
36	CD, DD, DI, ED, EI... (C, c, H, h)	DIGALACTOSYL DIACYL GLYCEROL (DGDG)	non-polymer		949.3	8	Chemie (DGD)
37	PD, SI (D, d)	BICARBONATE ION	non-polymer		61.0	2	Chemie (BCT)
38	CF, FK, JE, KJ (V, v, F, f)	PROTOPORPHYRIN IX CONTAINING FE	non-polymer		616.5	4	Chemie (HEM)
39	QE, SJ, UE, VJ (J, j, K, k)	MAGNESIUM ION	non-polymer		24.3	4	Chemie (MG)
40	AL, BL, CL, DL, EL... (U, V, Y, X, Z...)	water	water		18.0	2037	Chemie (HOH)

Sequence modifications

A, a: 11 - 344 (UniProt: P51765)

PDB	External Database	Details
Pro 279	Arg 279	SEE REMARK 999

Contents of the asymmetric unit

Polymers	Number of chains	39
	Total formula weight	587408.7
Non-Polymers*	Number of molecules	259
	Total formula weight	131685.3
All*	Total formula weight	719094.0

*Water molecules are not included.