1QK5
TOXOPLASMA GONDII HYPOXANTHINE-GUANINE PHOSPHORIBOSYLTRANSFERASE WITH XMP, PYROPHOSPHATE AND TWO MG2+ IONS
Entity
Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
1 | A, B | HYPOXANTHINE-GUANINE PHOSPHORIBOSYLTRANSFERASE | polymer | 233 | 26661.5 | 2 | UniProt (Q26997) Pfam (PF00156) In PDB | TOXOPLASMA GONDII | HGPRTASE |
2 | A, B | XANTHOSINE-5'-MONOPHOSPHATE | non-polymer | 365.2 | 2 | Chemie (XMP) | |||
3 | A, B | PYROPHOSPHATE 2- | non-polymer | 176.0 | 2 | Chemie (POP) | |||
4 | A, B | MAGNESIUM ION | non-polymer | 24.3 | 4 | Chemie (MG) | |||
5 | water | water | 18.0 | 182 | Chemie (HOH) |
Sequence modifications
A, B: 1 - 230 (UniProt: Q26997)
PDB | External Database | Details |
---|---|---|
Gly 0 | - | cloning artifact |
Ser 0 | - | cloning artifact |
His 0 | - | cloning artifact |
Ala 150 | Asp 150 | engineered mutation |
Sequence viewer
Contents of the asymmetric unit
Polymers | Number of chains | 2 |
Total formula weight | 53323.0 | |
Non-Polymers* | Number of molecules | 8 |
Total formula weight | 1179.6 | |
All* | Total formula weight | 54502.5 |