6TCL

Photosystem I tetramer

This is a non-PDB format compatible entry.

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A1, A2, A, AA	Photosystem I P700 chlorophyll a apoprotein A1	polymer	740	81932.1	4	UniProt (P58576) Pfam (PF00223) In PDB	Nostoc sp. PCC 7120	PsaA
2	B1, B2, B, BB	Photosystem I P700 chlorophyll a apoprotein A2 1	polymer	739	83254.7	4	UniProt (P58565) Pfam (PF00223) In PDB	Nostoc sp. PCC 7120	PsaB 1
3	C1, C2, C, CC	Photosystem I iron-sulfur center	polymer	80	8694.0	4	UniProt (P0A410) Pfam (PF12838) In PDB	Nostoc sp. PCC 7120	9 kDa polypeptide,PSI-C,Photosystem I subunit VII,PsaC
4	D1, D2, D, DD	Photosystem I reaction center subunit II	polymer	134	14672.7	4	UniProt (P58573) Pfam (PF02531) In PDB	Nostoc sp. PCC 7120
5	E1, E2	Photosystem I reaction center subunit IV	polymer	60	6809.7	2	UniProt (P58575) Pfam (PF02427) In PDB	Nostoc sp. PCC 7120
6	F1, F, FF	Photosystem I reaction center subunit III	polymer	139	15030.0	3	UniProt (P58564) Pfam (PF02507) In PDB	Nostoc sp. PCC 7120	PSI-F
7	I1, I, II	Photosystem I reaction center subunit VIII	polymer	31	3550.2	3	UniProt (P58560) Pfam (PF00796) In PDB	Nostoc sp. PCC 7120
8	J1, J2, J, JJ	Photosystem I reaction center subunit IX	polymer	48	5368.2	4	UniProt (P58568) Pfam (PF01701) In PDB	Nostoc sp. PCC 7120
9	K1, K, KK	Photosystem I reaction center subunit PsaK 1	polymer	74	7580.9	3	UniProt (P58583) Pfam (PF01241) In PDB	Nostoc sp. PCC 7120	Photosystem I subunit X 1
10	L1	Photosystem I reaction center subunit XI	polymer	166	17545.0	1	UniProt (P58577) Pfam (PF02605) In PDB	Nostoc sp. PCC 7120	PSI subunit V,PSI-L
11	M1, M2, M, MM	Photosystem I reaction center subunit XII	polymer	31	3407.0	4	UniProt (Q8YNB0) Pfam (PF07465) In PDB	Nostoc sp. PCC 7120	PSI-M
12	X1, X2, X, XX	Photosystem I 4.8 kDa protein	polymer	39	4342.1	4	UniProt (P58566) Pfam (PF08078) In PDB	Nostoc sp. PCC 7120
13	F2	Photosystem I reaction center subunit III	polymer	137	14845.8	1	UniProt (P58564) Pfam (PF02507) In PDB	Nostoc sp. PCC 7120	PSI-F
14	I2	Photosystem I reaction center subunit VIII	polymer	33	3764.4	1	UniProt (P58560) Pfam (PF00796) In PDB	Nostoc sp. PCC 7120
15	K2	Photosystem I reaction center subunit PsaK 1	polymer	73	7509.8	1	UniProt (P58583) Pfam (PF01241) In PDB	Nostoc sp. PCC 7120	Photosystem I subunit X 1
16	L2	Photosystem I reaction center subunit XI	polymer	167	17673.1	1	UniProt (P58577) Pfam (PF02605) In PDB	Nostoc sp. PCC 7120	PSI subunit V,PSI-L
17	E, EE	Photosystem I reaction center subunit IV	polymer	63	7107.0	2	UniProt (P58575) Pfam (PF02427) In PDB	Nostoc sp. PCC 7120
18	L, LL	Photosystem I reaction center subunit XI	polymer	154	16290.7	2	UniProt (P58577) Pfam (PF02605) In PDB	Nostoc sp. PCC 7120	PSI subunit V,PSI-L
19	A1, B1, L1, A2, B2...	CHLOROPHYLL A	non-polymer		893.5	378	Chemie (CLA)
20	A, A2, AA, A1	CHLOROPHYLL A ISOMER	non-polymer		893.5	4	Chemie (CL0)
21	B2, A2, BB, AA, B1...	PHYLLOQUINONE	non-polymer		450.7	8	Chemie (PQN)
22	XX, B, A2, L1, X1...	1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE	non-polymer		723.0	24	Chemie (LHG)
23	I2, A, B2, K, L1...	BETA-CAROTENE	non-polymer		536.9	94	Chemie (BCR)
24	B, I2, A, K, L...	Digitonin	non-polymer		1229.3	22	Chemie (AJP)
25	A1, B1, B, I2, L...	1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE	non-polymer		787.2	30	Chemie (LMG)
26	B2, BB, B1, B	beta,beta-caroten-4-one	non-polymer		550.9	4	Chemie (ECH)
27	CC, C1, B, C, B2...	IRON/SULFUR CLUSTER	non-polymer		351.6	12	Chemie (SF4)
28	B, BB	DIGALACTOSYL DIACYL GLYCEROL (DGDG)	non-polymer		949.3	2	Chemie (DGD)

Contents of the asymmetric unit

Polymers	Number of chains	48
	Total formula weight	1006919.5
Non-Polymers*	Number of molecules	578
	Total formula weight	471717.0
All*	Total formula weight	1478636.5

*Water molecules are not included.