7B1L
Crystal structure of phosphatidyl serine synthase (PSS) in the closed conformation with bound citrate.
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A, B (A, B) | CDP-diacylglycerol--serine O-phosphatidyltransferase | polymer | 225 | 24947.9 | 2 | UniProt (Q58609) Pfam (PF01066) | Methanocaldococcus jannaschii (strain ATCC 43067 / DSM 2661 / JAL-1 / JCM 10045 / NBRC 100440) | Phosphatidylserine synthase |
| 2 | C, T (A, B) | 5'-O-[(R)-{[(S)-{(2R)-2,3-bis[(9E)-octadec-9-enoyloxy]propoxy}(hydroxy)phosphoryl]oxy}(hydroxy)phosphoryl]cytidine | non-polymer | 1006.1 | 2 | Chemie (58A) | |||
| 3 | D, U (A, B) | CALCIUM ION | non-polymer | 40.1 | 2 | Chemie (CA) | |||
| 4 | E, F, K, S, V... (A, B) | CHLORIDE ION | non-polymer | 35.5 | 6 | Chemie (CL) | |||
| 5 | G, H, X, Y (A, B) | SERINE | non-polymer | 105.1 | 4 | Chemie (SER) | |||
| 6 | I, Z (A, B) | SODIUM ION | non-polymer | 23.0 | 2 | Chemie (NA) | |||
| 7 | J, R (A, B) | MAGNESIUM ION | non-polymer | 24.3 | 2 | Chemie (MG) | |||
| 8 | AA, BA, L, M, N... (B, A) | (2R)-2,3-dihydroxypropyl (9Z)-octadec-9-enoate | non-polymer | 356.5 | 8 | Chemie (OLC) | |||
| 9 | CA, DA (A, B) | water | water | 18.0 | 101 | Chemie (HOH) |
Sequence modifications
A, B: 1 - 201 (UniProt: Q58609)
| PDB | External Database | Details |
|---|---|---|
| Mse -21 | - | initiating methionine |
| Gly -20 | - | expression tag |
| Ser -19 | - | expression tag |
| Ser -18 | - | expression tag |
| His -17 | - | expression tag |
| His -16 | - | expression tag |
| His -15 | - | expression tag |
| His -14 | - | expression tag |
| His -13 | - | expression tag |
| His -12 | - | expression tag |
| Ser -11 | - | expression tag |
| Ser -10 | - | expression tag |
| Gly -9 | - | expression tag |
| Leu -8 | - | expression tag |
| Glu -7 | - | expression tag |
| Val -6 | - | expression tag |
| Leu -5 | - | expression tag |
| Phe -4 | - | expression tag |
| Gln -3 | - | expression tag |
| Gly -2 | - | expression tag |
| Pro -1 | - | expression tag |
| His 0 | - | expression tag |
| Leu 202 | - | expression tag |
| Glu 203 | - | expression tag |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 2 |
| Total formula weight | 49895.7 | |
| Non-Polymers* | Number of molecules | 26 |
| Total formula weight | 5672.5 | |
| All* | Total formula weight | 55568.2 |
