2XXA
The Crystal Structure of the Signal Recognition Particle (SRP) in Complex with its Receptor(SR)
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A, C (A, C) | SIGNAL RECOGNITION PARTICLE PROTEIN | polymer | 433 | 47663.5 | 2 | UniProt (P0AGD7) Pfam (PF02881) Pfam (PF00448) Pfam (PF02978) | ESCHERICHIA COLI K-12 | FIFTY-FOUR HOMOLOG, P48 |
| 2 | B, D (B, D) | SRP RECEPTOR FTSY | polymer | 302 | 33044.0 | 2 | UniProt (P10121) Pfam (PF02881) Pfam (PF00448) | ESCHERICHIA COLI K-12 | |
| 3 | E, F (F, G) | 4.5S RNA | polymer | 106 | 34238.3 | 2 | GenBank (11612676) | DEINOCOCCUS RADIODURANS | |
| 4 | G, I, K, M (A, B, C, D) | PHOSPHOMETHYLPHOSPHONIC ACID GUANYLATE ESTER | non-polymer | 521.2 | 4 | Chemie (GCP) | |||
| 5 | H, J, L, N (A, B, C, D) | MAGNESIUM ION | non-polymer | 24.3 | 4 | Chemie (MG) | |||
| 6 | O, P, Q, R (A, B, C, D) | water | water | 18.0 | 12 | Chemie (HOH) |
Sequence modifications
A, C: 1 - 433 (UniProt: P0AGD7)
F, G: 1 - 100 (GenBank: 11612676)
F, G: 101 - 106 (PDB: 2XXA)
| PDB | External Database | Details |
|---|---|---|
| Ser 406 | Cys 406 | engineered mutation |
F, G: 101 - 106 (PDB: 2XXA)
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 6 |
| Total formula weight | 229891.6 | |
| Non-Polymers* | Number of molecules | 8 |
| Total formula weight | 2182.1 | |
| All* | Total formula weight | 232073.7 |
