2h11

X-ray diffraction
1.89Å resolution

Amino-terminal Truncated Thiopurine S-Methyltransferase Complexed with S-Adenosyl-L-Homocysteine

Released:

Function and Biology Details

Reaction catalysed:
S-adenosyl-L-methionine + a thiopurine = S-adenosyl-L-homocysteine + a thiopurine S-methylether
Biochemical function:
Biological process:
Cellular component:

Structure analysis Details

Assembly composition:
monomeric (preferred)
PDBe Complex ID:
PDB-CPX-156365 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Thiopurine S-methyltransferase Chains: A, B
Molecule details ›
Chains: A, B
Length: 232 amino acids
Theoretical weight: 26.65 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P51580 (Residues: 16-245; Coverage: 94%)
Gene name: TPMT
Sequence domains: Thiopurine S-methyltransferase (TPMT)
Structure domains: Vaccinia Virus protein VP39

Ligands and Environments


Cofactor: Ligand SAH 2 x SAH
2 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 22-ID
Spacegroup: P42
Unit cell:
a: 85.636Å b: 85.636Å c: 69.818Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.21 0.203 0.236
Expression system: Escherichia coli BL21(DE3)