4FE2
X-Ray Structure of SAICAR Synthetase (PurC) from Streptococcus pneumoniae complexed with AIR, ADP, Asp and Mg2+
Entity
Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
1 | A, B | Phosphoribosylaminoimidazole-succinocarboxamide synthase | polymer | 255 | 29208.1 | 2 | UniProt (Q07296) Pfam (PF01259) In PDB | Streptococcus pneumoniae | SAICAR synthetase |
2 | A, B | 5-AMINOIMIDAZOLE RIBONUCLEOTIDE | non-polymer | 295.2 | 2 | Chemie (AIR) | |||
3 | A, B | ADENOSINE-5'-DIPHOSPHATE | non-polymer | 427.2 | 2 | Chemie (ADP) | |||
4 | A, B | MAGNESIUM ION | non-polymer | 24.3 | 2 | Chemie (MG) | |||
5 | A, B | TRIS-HYDROXYMETHYL-METHYL-AMMONIUM | non-polymer | 122.1 | 4 | Chemie (144) | |||
6 | A | CHLORIDE ION | non-polymer | 35.5 | 1 | Chemie (CL) | |||
7 | A | ASPARTIC ACID | non-polymer | 133.1 | 1 | Chemie (ASP) | |||
8 | B | ACETATE ION | non-polymer | 59.0 | 1 | Chemie (ACT) | |||
9 | water | water | 18.0 | 414 | Chemie (HOH) |
Sequence modifications
A, B: 1 - 235 (UniProt: Q07296)
PDB | External Database | Details |
---|---|---|
Met -19 | - | expression tag |
Gly -18 | - | expression tag |
Ser -17 | - | expression tag |
Ser -16 | - | expression tag |
His -15 | - | expression tag |
His -14 | - | expression tag |
His -13 | - | expression tag |
His -12 | - | expression tag |
His -11 | - | expression tag |
His -10 | - | expression tag |
Ser -9 | - | expression tag |
Ser -8 | - | expression tag |
Gly -7 | - | expression tag |
Leu -6 | - | expression tag |
Val -5 | - | expression tag |
Pro -4 | - | expression tag |
Arg -3 | - | expression tag |
Gly -2 | - | expression tag |
Ser -1 | - | expression tag |
His 0 | - | expression tag |
Sequence viewer
Contents of the asymmetric unit
Polymers | Number of chains | 2 |
Total formula weight | 58416.1 | |
Non-Polymers* | Number of molecules | 13 |
Total formula weight | 2209.6 | |
All* | Total formula weight | 60625.7 |