2WSC

Improved Model of Plant Photosystem I

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	1	AT3G54890	polymer	241	26021.9	1	UniProt (Q9C5R7) Pfam (PF00504) UniProt (by SIFTS) (Q01667) In PDB	ARABIDOPSIS THALIANA (THALE CRESS)	LHCA1
2	2	TYPE II CHLOROPHYLL A/B BINDING PROTEIN FROM PHOTOSYSTEM I	polymer	269	28926.7	1	UniProt (Q41038) Pfam (PF00504) In PDB	PISUM SATIVUM (PEA)	LHCA2
3	3	LHCA3	polymer	276	29852.1	1	Pfam (PF00504) UniProt (by SIFTS) (C6TEX2) In PDB	GLYCINE MAX (SOYBEAN)
4	4	CHLOROPHYLL A-B BINDING PROTEIN P4, CHLOROPLASTIC	polymer	251	27182.0	1	UniProt (Q9SQL2) Pfam (PF00504) In PDB	PISUM SATIVUM (PEA)	LHCI TYPE III CAB-P4 LHCA4
5	A	PHOTOSYSTEM I P700 CHLOROPHYLL A APOPROTEIN A1	polymer	758	84284.5	1	UniProt (P05310) Pfam (PF00223) In PDB	PISUM SATIVUM (PEA)	PSAA, PSI-A
6	B	PHOTOSYSTEM I P700 CHLOROPHYLL A APOPROTEIN A2	polymer	734	82491.0	1	UniProt (P05311) Pfam (PF00223) In PDB	PISUM SATIVUM (PEA)	PSAB, PSI-B
7	C	PHOTOSYSTEM I IRON-SULFUR CENTER	polymer	81	8991.5	1	UniProt (P10793) Pfam (PF14697) In PDB	PISUM SATIVUM (PEA)	PSAC, PHOTOSYSTEM I SUBUNIT VII, 9 KDA POLYPEPTIDE, PSI-C
8	D	PHOTOSYSTEM I REACTION CENTER SUBUNIT II, CHLOROPLASTIC	polymer	212	23170.6	1	UniProt (P12353) Pfam (PF02531) In PDB	SPINACIA OLERACEA (SPINACH)	PSAD, PHOTOSYSTEM I 20 KDA SUBUNIT, PSI-D
9	E	PHOTOSYSTEM I REACTION CENTER SUBUNIT IV A, CHLOROPLASTIC	polymer	143	14985.0	1	UniProt (Q9S831) Pfam (PF02427) In PDB	ARABIDOPSIS THALIANA (THALE CRESS)	PSAE, PSI-E A
10	F	PHOTOSYSTEM I REACTION CENTER SUBUNIT III, CHLOROPLASTIC	polymer	231	25445.5	1	UniProt (P12355) Pfam (PF02507) In PDB	SPINACIA OLERACEA (SPINACH)	PSAF, LIGHT-HARVESTING COMPLEX I 17 KDA PROTEIN, PSI-F
11	G	PHOTOSYSTEM I REACTION CENTER SUBUNIT V, CHLOROPLASTIC	polymer	167	18232.7	1	UniProt (P12357) Pfam (PF01241) In PDB	SPINACIA OLERACEA (SPINACH)	PSAG, PSI-G, PHOTOSYSTEM I 9 KDA PROTEIN
12	H	PHOTOSYSTEM I REACTION CENTER SUBUNIT VI, CHLOROPLASTIC	polymer	144	15341.6	1	UniProt (P22179) Pfam (PF03244) In PDB	SPINACIA OLERACEA (SPINACH)	PSAH, PSI-H, LIGHT-HARVESTING COMPLEX I 11 KDA PROTEIN
13	I	PHOTOSYSTEM I REACTION CENTER SUBUNIT VIII	polymer	40	4474.5	1	UniProt (P17227) Pfam (PF00796) In PDB	PISUM SATIVUM (PEA)	PSAI, PSI-I
14	J	PHOTOSYSTEM I REACTION CENTER SUBUNIT IX	polymer	44	5079.9	1	UniProt (P17230) Pfam (PF01701) In PDB	SPINACIA OLERACEA (SPINACH)	PSAJ, PSI-J
15	K	PHOTOSYSTEM I REACTION CENTER SUBUNIT PSAK, CHLOROPLASTIC	polymer	131	13742.9	1	UniProt (P36886) Pfam (PF01241) In PDB	HORDEUM VULGARE	PSAK, PHOTOSYSTEM I SUBUNIT X, PSI-K, LIGHT-HARVESTING COMPLEX I 7 KDA PROTEIN
16	L	PHOTOSYSTEM I REACTION CENTER SUBUNIT XI, CHLOROPLASTIC	polymer	216	22957.7	1	UniProt (Q41385) Pfam (PF02605) In PDB	SPINACIA OLERACEA (SPINACH)	PSAL, PSI-L, PSI SUBUNIT V
17	N	PHOTOSYSTEM I-N SUBUNIT	polymer	170	18461.0	1	UniProt (Q84U30) Pfam (PF05479) In PDB	PHASEOLUS VULGARIS	PSAN, PSI-N
18	R	PHOTOSYSTEM I-N SUBUNIT	polymer	53	4528.6	1		PISUM SATIVUM (PEA)
19	W, X, Y, Z, a...	beta-D-fructofuranose-(2-1)-alpha-D-glucopyranose	branched		342.3	13	In PDB BIRD (PRD_900003)		sucrose
20	2, 3, A, B, K...	CHLOROPHYLL A	non-polymer		893.5	173	Chemie (CLA)
21	A, B, 3, L, 2...	DODECYL-ALPHA-D-MALTOSIDE	non-polymer		510.6	45	Chemie (LMU)
22	B, L, A, I, 3	BETA-CAROTENE	non-polymer		536.9	18	Chemie (BCR)
23	A, B	PHYLLOQUINONE	non-polymer		450.7	2	Chemie (PQN)
24	B	1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE	non-polymer		787.2	1	Chemie (LMG)
25	B, C	IRON/SULFUR CLUSTER	non-polymer		351.6	3	Chemie (SF4)
26	B	UNKNOWN LIGAND	non-polymer			1	Chemie (UNL)

Sequence modifications

1: -43 - 197 (UniProt: Q9C5R7)

PDB	External Database	Details
Ile -33	Lys 11	conflict
Arg -1	Lys 43	conflict

2: -57 - 194 (UniProt: Q41038)

PDB	External Database	Details
-	Gly 258	deletion

2: 196 - 200 (UniProt: Q41038)

PDB	External Database	Details
Ala 195	-	insertion

2: 201 - 211 (UniProt: Q41038)
2: 195 - 195 (PDB: 2WSC)
4: -50 - 159 (UniProt: Q9SQL2)

PDB	External Database	Details
-	Ala 211	deletion

D: -55 - 156 (UniProt: P12353)

PDB	External Database	Details
Gly -52	Ala 4	conflict
Pro -50	Gln 6	conflict
Arg -44	Pro 12	conflict
Glu -34	Asp 22	conflict
Leu -11	His 45	conflict
Thr -9	Ser 47	conflict
Thr 12	Pro 68	conflict
Ala 14	Gly 70	conflict

K: -41 - 89 (UniProt: P36886)

PDB	External Database	Details
Ile 47	Leu 89	conflict

Contents of the asymmetric unit

Polymers	Number of chains	18
	Total formula weight	454169.6
Branched	Number of molecules	13
	Total formula weight	4449.9
Non-Polymers*	Number of molecules	243
	Total formula weight	189958.5
All*	Total formula weight	648577.9

*Water molecules are not included.