4FE1
Improving the Accuracy of Macromolecular Structure Refinement at 7 A 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 | 755 | 83267.8 | 1 | UniProt (P0A405) Pfam (PF00223) | Thermosynechococcus elongatus | PsaA |
| 2 | B (B) | Photosystem I P700 chlorophyll a apoprotein A2 | polymer | 740 | 82992.5 | 1 | UniProt (P0A407) Pfam (PF00223) | Thermosynechococcus elongatus | PsaB |
| 3 | C (C) | Photosystem I iron-sulfur center | polymer | 80 | 8678.0 | 1 | UniProt (P0A415) Pfam (PF12838) | Thermosynechococcus elongatus | 9 kDa polypeptide, PSI-C, Photosystem I subunit VII, PsaC |
| 4 | D (D) | Photosystem I reaction center subunit II | polymer | 138 | 15258.3 | 1 | UniProt (P0A420) Pfam (PF02531) | Thermosynechococcus elongatus | Photosystem I 16 kDa polypeptide, PSI-D |
| 5 | E (E) | Photosystem I reaction center subunit IV | polymer | 75 | 8268.3 | 1 | UniProt (P0A423) Pfam (PF02427) | Thermosynechococcus elongatus | Photosystem I 8.1 kDa protein, p30 protein |
| 6 | F (F) | Photosystem I reaction center subunit III | polymer | 164 | 17716.6 | 1 | UniProt (P0A401) Pfam (PF02507) | Thermosynechococcus elongatus | PSI-F |
| 7 | G (I) | Photosystem I reaction center subunit VIII | polymer | 38 | 4297.2 | 1 | UniProt (P0A427) Pfam (PF00796) | Thermosynechococcus elongatus | |
| 8 | H (J) | Photosystem I reaction center subunit IX | polymer | 41 | 4770.7 | 1 | UniProt (P0A429) Pfam (PF01701) | Thermosynechococcus elongatus | |
| 9 | I (K) | Photosystem I reaction center subunit PsaK | polymer | 83 | 8484.0 | 1 | UniProt (P0A425) Pfam (PF01241) | Thermosynechococcus elongatus | Light-harvesting 8.0 kDa polypeptide, Photosystem I subunit X |
| 10 | J (L) | Photosystem I reaction center subunit XI | polymer | 154 | 16156.6 | 1 | UniProt (Q8DGB4) Pfam (PF02605) | Thermosynechococcus elongatus | PSI subunit V, PSI-L |
| 11 | K (M) | Photosystem I reaction center subunit XII | polymer | 31 | 3426.1 | 1 | UniProt (P0A403) Pfam (PF07465) | Thermosynechococcus elongatus | PSI-M |
| 12 | L (X) | Photosystem I 4.8K protein | polymer | 35 | 3845.5 | 1 | UniProt (Q8DKP6) Pfam (PF08078) | Thermosynechococcus elongatus | |
| 13 | AA, AB, AC, AD, AE... (A, B, L, M, X...) | CHLOROPHYLL A | non-polymer | 893.5 | 96 | Chemie (CLA) | |||
| 14 | DD, FB (B, A) | PHYLLOQUINONE | non-polymer | 450.7 | 2 | Chemie (PQN) | |||
| 15 | DE, ED, EE, FD, GB... (L, B, A, M, F...) | BETA-CAROTENE | non-polymer | 536.9 | 22 | Chemie (BCR) | |||
| 16 | IE, MB, NB (X, A) | 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE | non-polymer | 723.0 | 3 | Chemie (LHG) | |||
| 17 | OD, PB, PD (C, A) | IRON/SULFUR CLUSTER | non-polymer | 351.6 | 3 | Chemie (SF4) | |||
| 18 | LD (B) | 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE | non-polymer | 787.2 | 1 | Chemie (LMG) | |||
| 19 | ZD (L) | CALCIUM ION | non-polymer | 40.1 | 1 | Chemie (CA) |
Sequence modifications
L: 1 - 154 (UniProt: Q8DGB4)
X: 1 - 31 (UniProt: Q8DKP6)
| PDB | External Database | Details |
|---|---|---|
| Leu 143 | Ser 144 | conflict |
| PDB | External Database | Details |
|---|---|---|
| Ala 32 | - | expression tag |
| Ala 33 | - | expression tag |
| Ala 34 | - | expression tag |
| Ala 35 | - | expression tag |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 12 |
| Total formula weight | 257161.5 | |
| Non-Polymers* | Number of molecules | 128 |
| Total formula weight | 102538.6 | |
| All* | Total formula weight | 359700.1 |
