3PCQ
Femtosecond X-ray protein Nanocrystallography
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 | 755 | 83267.8 | 1 | UniProt (P0A405) Pfam (PF00223) In PDB | Thermosynechococcus elongatus | PsaA |
| 2 | B | Photosystem I P700 chlorophyll a apoprotein A2 | polymer | 740 | 82992.5 | 1 | UniProt (P0A407) Pfam (PF00223) In PDB | Thermosynechococcus elongatus | PsaB |
| 3 | C | Photosystem I iron-sulfur center | polymer | 80 | 8678.0 | 1 | UniProt (P0A415) Pfam (PF12838) In PDB | Thermosynechococcus elongatus | 9 kDa polypeptide, PSI-C, Photosystem I subunit VII, PsaC |
| 4 | D | Photosystem I reaction center subunit II | polymer | 138 | 15258.3 | 1 | UniProt (P0A420) Pfam (PF02531) In PDB | Thermosynechococcus elongatus | Photosystem I 16 kDa polypeptide, PSI-D |
| 5 | E | Photosystem I reaction center subunit IV | polymer | 75 | 8268.3 | 1 | UniProt (P0A423) Pfam (PF02427) In PDB | Thermosynechococcus elongatus | Photosystem I 8.1 kDa protein, p30 protein |
| 6 | F | Photosystem I reaction center subunit III | polymer | 164 | 17716.6 | 1 | UniProt (P0A401) Pfam (PF02507) In PDB | Thermosynechococcus elongatus | PSI-F |
| 7 | I | Photosystem I reaction center subunit VIII | polymer | 38 | 4297.2 | 1 | UniProt (P0A427) Pfam (PF00796) In PDB | Thermosynechococcus elongatus | |
| 8 | J | Photosystem I reaction center subunit IX | polymer | 41 | 4770.7 | 1 | UniProt (P0A429) Pfam (PF01701) In PDB | Thermosynechococcus elongatus | |
| 9 | K | Photosystem I reaction center subunit PsaK | polymer | 83 | 8484.0 | 1 | UniProt (P0A425) Pfam (PF01241) In PDB | Thermosynechococcus elongatus | Light-harvesting 8.0 kDa polypeptide, Photosystem I subunit X |
| 10 | L | Photosystem I reaction center subunit XI | polymer | 154 | 16156.6 | 1 | UniProt (Q8DGB4) Pfam (PF02605) In PDB | Thermosynechococcus elongatus | PSI subunit V, PSI-L |
| 11 | M | Photosystem I reaction center subunit XII | polymer | 31 | 3426.1 | 1 | UniProt (P0A403) Pfam (PF07465) In PDB | Thermosynechococcus elongatus | PSI-M |
| 12 | X | Photosystem I 4.8K protein | polymer | 35 | 3973.7 | 1 | UniProt (Q8DKP6) Pfam (PF08078) In PDB | Thermosynechococcus elongatus | |
| 13 | A, B, K, L, M... | CHLOROPHYLL A | non-polymer | 893.5 | 96 | Chemie (CLA) | |||
| 14 | B, A | PHYLLOQUINONE | non-polymer | 450.7 | 2 | Chemie (PQN) | |||
| 15 | A, C | IRON/SULFUR CLUSTER | non-polymer | 351.6 | 3 | Chemie (SF4) | |||
| 16 | L, B, A, M, F... | BETA-CAROTENE | non-polymer | 536.9 | 22 | Chemie (BCR) | |||
| 17 | A, B | 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE | non-polymer | 723.0 | 3 | Chemie (LHG) | |||
| 18 | B | 1,2-DISTEAROYL-MONOGALACTOSYL-DIGLYCERIDE | non-polymer | 787.2 | 1 | Chemie (LMG) | |||
| 19 | L | CALCIUM ION | non-polymer | 40.1 | 1 | Chemie (CA) | |||
| 20 | water | water | 18.0 | 200 | Chemie (HOH) |
Sequence modifications
L: 1 - 154 (UniProt: Q8DGB4)
| PDB | External Database | Details |
|---|---|---|
| Leu 143 | Ser 144 | conflict |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 12 |
| Total formula weight | 257289.8 | |
| Non-Polymers* | Number of molecules | 128 |
| Total formula weight | 102538.6 | |
| All* | Total formula weight | 359828.4 |
