2O01

The Structure of a plant photosystem I supercomplex at 3.4 Angstrom resolution

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	Photosystem I P700 chlorophyll a apoprotein A1	polymer	754	83669.7	1	UniProt (P05310) Pfam (PF00223) In PDB	Pisum sativum (pea)	PsaA, PSI-A
2	B	Photosystem I P700 chlorophyll a apoprotein A2	polymer	732	82226.6	1	UniProt (P05311) Pfam (PF00223) In PDB	Pisum sativum (pea)	PsaB, PSI-B
3	C	Photosystem I iron-sulfur center	polymer	80	8860.3	1	UniProt (P10793) Pfam (PF14697) In PDB	Pisum sativum (pea)	Photosystem I subunit VII, 9 kDa polypeptide, PSI-C, PsaC
4	D	Photosystem I reaction center subunit II, chloroplast	polymer	138	15553.9	1	UniProt (P12353) Pfam (PF02531) In PDB	Spinacia oleracea (spinach)	Photosystem I 20 kDa subunit, PSI-D
5	E	Photosystem I reaction center subunit IV A, chloroplast	polymer	62	7127.1	1	UniProt (Q9S831) Pfam (PF02427) In PDB	Arabidopsis thaliana (thale cress)	PSI-E A
6	F	Photosystem I reaction center subunit III, chloroplast	polymer	154	17299.0	1	UniProt (P12355) Pfam (PF02507) In PDB	Spinacia oleracea (spinach)	Light-harvesting complex I 17 kDa protein, PSI-F
7	G	Photosystem I reaction center subunit V, chloroplast	polymer	95	10518.9	1	UniProt (P12357) Pfam (PF01241) In PDB	Spinacia oleracea (spinach)	PSI-G, Photosystem I 9 kDa protein
8	H	Photosystem I reaction center subunit VI, chloroplast	polymer	75	8143.4	1	UniProt (P22179) Pfam (PF03244) In PDB	Spinacia oleracea (spinach)	PSI- H, Light-harvesting complex I 11 kDa protein
9	I	Photosystem I reaction center subunit VIII	polymer	30	3270.0	1	UniProt (P17227) Pfam (PF00796) In PDB	Pisum sativum (pea)	PSI-I
10	J	Photosystem I reaction center subunit IX	polymer	42	4845.7	1	UniProt (P17230) Pfam (PF01701) In PDB	Spinacia oleracea (spinach)	PSI-J
11	K	Photosystem I reaction center subunit psaK, chloroplast	polymer	38	3252.0	1		Arabidopsis thaliana (thale cress)
12	L	Photosystem I reaction center subunit XI, chloroplast	polymer	164	17479.2	1	UniProt (Q41385) Pfam (PF02605) In PDB	Spinacia oleracea (spinach)	PSI- L, PSI subunit V
13	N	Photosystem I-N subunit	polymer	85	9767.0	1	UniProt (Q84U30) Pfam (PF05479) In PDB	Phaseolus vulgaris
14	1	AT3g54890	polymer	187	20415.3	1	UniProt (Q01667) Pfam (PF00504) In PDB	Arabidopsis thaliana (thale cress)	Chlorophyll A/B-binding protein, At3g54890/F28P10_130
15	2	Type II chlorophyll a/b binding protein from photosystem I	polymer	186	20580.2	1	UniProt (Q41038) Pfam (PF00504) In PDB	Pisum sativum (pea)
16	3	PSI type III chlorophyll a/b-binding protein	polymer	165	17929.7	1	UniProt (Q9SY97) Pfam (PF00504) In PDB	Arabidopsis thaliana (thale cress)
17	4	PSI light-harvesting antenna chlorophyll a/b-binding protein	polymer	165	18561.2	1	UniProt (Q9SQL2) Pfam (PF00504) In PDB	Pisum sativum (pea)
18	A, B, K, 2, 4...	CHLOROPHYLL A	non-polymer		893.5	168	Chemie (CLA)
19	B, A	PHYLLOQUINONE	non-polymer		450.7	2	Chemie (PQN)
20	B, L, A, F, I	BETA-CAROTENE	non-polymer		536.9	5	Chemie (BCR)
21	B, C	IRON/SULFUR CLUSTER	non-polymer		351.6	3	Chemie (SF4)

Sequence modifications

A: 5 - 758 (UniProt: P05310)

PDB	External Database	Details
Gly 220	Arg 220	conflict

B: 2 - 733 (UniProt: P05311)

PDB	External Database	Details
Ala 147	Phe 147	conflict

2: 16 - 201 (UniProt: Q41038)

PDB	External Database	Details
Glu 17	Pro 75	conflict
Ser 35	Gly 93	conflict

Contents of the asymmetric unit

Polymers	Number of chains	17
	Total formula weight	349499.3
Non-Polymers*	Number of molecules	178
	Total formula weight	154746.8
All*	Total formula weight	504246.1

*Water molecules are not included.