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 (A) | Photosystem I P700 chlorophyll a apoprotein A1 | polymer | 754 | 83669.7 | 1 | UniProt (P05310) Pfam (PF00223) | Pisum sativum (pea) | PsaA, PSI-A |
| 2 | B (B) | Photosystem I P700 chlorophyll a apoprotein A2 | polymer | 732 | 82226.6 | 1 | UniProt (P05311) Pfam (PF00223) | Pisum sativum (pea) | PsaB, PSI-B |
| 3 | C (C) | Photosystem I iron-sulfur center | polymer | 80 | 8860.3 | 1 | UniProt (P10793) Pfam (PF14697) | Pisum sativum (pea) | Photosystem I subunit VII, 9 kDa polypeptide, PSI-C, PsaC |
| 4 | D (D) | Photosystem I reaction center subunit II, chloroplast | polymer | 138 | 15553.9 | 1 | UniProt (P12353) Pfam (PF02531) | Spinacia oleracea (spinach) | Photosystem I 20 kDa subunit, PSI-D |
| 5 | E (E) | Photosystem I reaction center subunit IV A, chloroplast | polymer | 62 | 7127.1 | 1 | UniProt (Q9S831) Pfam (PF02427) | Arabidopsis thaliana (thale cress) | PSI-E A |
| 6 | F (F) | Photosystem I reaction center subunit III, chloroplast | polymer | 154 | 17299.0 | 1 | UniProt (P12355) Pfam (PF02507) | Spinacia oleracea (spinach) | Light-harvesting complex I 17 kDa protein, PSI-F |
| 7 | G (G) | Photosystem I reaction center subunit V, chloroplast | polymer | 95 | 10518.9 | 1 | UniProt (P12357) Pfam (PF01241) | Spinacia oleracea (spinach) | PSI-G, Photosystem I 9 kDa protein |
| 8 | H (H) | Photosystem I reaction center subunit VI, chloroplast | polymer | 75 | 8143.4 | 1 | UniProt (P22179) Pfam (PF03244) | Spinacia oleracea (spinach) | PSI- H, Light-harvesting complex I 11 kDa protein |
| 9 | I (I) | Photosystem I reaction center subunit VIII | polymer | 30 | 3270.0 | 1 | UniProt (P17227) Pfam (PF00796) | Pisum sativum (pea) | PSI-I |
| 10 | J (J) | Photosystem I reaction center subunit IX | polymer | 42 | 4845.7 | 1 | UniProt (P17230) Pfam (PF01701) | Spinacia oleracea (spinach) | PSI-J |
| 11 | K (K) | Photosystem I reaction center subunit psaK, chloroplast | polymer | 38 | 3252.0 | 1 | Arabidopsis thaliana (thale cress) | ||
| 12 | L (L) | Photosystem I reaction center subunit XI, chloroplast | polymer | 164 | 17479.2 | 1 | UniProt (Q41385) Pfam (PF02605) | Spinacia oleracea (spinach) | PSI- L, PSI subunit V |
| 13 | M (N) | Photosystem I-N subunit | polymer | 85 | 9767.0 | 1 | UniProt (Q84U30) Pfam (PF05479) | Phaseolus vulgaris | |
| 14 | N (1) | AT3g54890 | polymer | 187 | 20415.3 | 1 | UniProt (Q01667) Pfam (PF00504) | Arabidopsis thaliana (thale cress) | Chlorophyll A/B-binding protein, At3g54890/F28P10_130 |
| 15 | O (2) | Type II chlorophyll a/b binding protein from photosystem I | polymer | 186 | 20580.2 | 1 | UniProt (Q41038) Pfam (PF00504) | Pisum sativum (pea) | |
| 16 | P (3) | PSI type III chlorophyll a/b-binding protein | polymer | 165 | 17929.7 | 1 | UniProt (Q9SY97) Pfam (PF00504) | Arabidopsis thaliana (thale cress) | |
| 17 | Q (4) | PSI light-harvesting antenna chlorophyll a/b-binding protein | polymer | 165 | 18561.2 | 1 | UniProt (Q9SQL2) Pfam (PF00504) | Pisum sativum (pea) | |
| 18 | AA, AB, AC, AD, AE... (A, B, K, 2, 4...) | CHLOROPHYLL A | non-polymer | 893.5 | 168 | Chemie (CLA) | |||
| 19 | FD, JB (B, A) | PHYLLOQUINONE | non-polymer | 450.7 | 2 | Chemie (PQN) | |||
| 20 | GD, IE, KB, QD, WD (B, L, A, F, I) | BETA-CAROTENE | non-polymer | 536.9 | 5 | Chemie (BCR) | |||
| 21 | ED, HD, ID (B, C) | IRON/SULFUR CLUSTER | non-polymer | 351.6 | 3 | Chemie (SF4) |
Sequence modifications
A: 5 - 758 (UniProt: P05310)
B: 2 - 733 (UniProt: P05311)
2: 16 - 201 (UniProt: Q41038)
| PDB | External Database | Details |
|---|---|---|
| Gly 220 | Arg 220 | conflict |
| PDB | External Database | Details |
|---|---|---|
| Ala 147 | Phe 147 | conflict |
| PDB | External Database | Details |
|---|---|---|
| Glu 17 | Pro 75 | conflict |
| Ser 35 | Gly 93 | conflict |
Sequence viewer
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 |
