› 3dl6

X-ray diffraction
3.25Å resolution

Crystal Structure of the A287F/S290G Active Site Mutant of TS-DHFR from Cryptosporidium hominis

Released:
DOI: 10.2210/pdb3dl6/pdb
PDB entry 3dl6 coloured by chain, front view.
PDB entry 3dl6 coloured by chain, side view.
PDB entry 3dl6 coloured by chain, top view.
Source organism: Cryptosporidium hominis
Primary publication:
Explaining an unusually fast parasitic enzyme: folate tail-binding residues dictate substrate positioning and catalysis in Cryptosporidium hominis thymidylate synthase.
Martucci WE, Vargo MA, Anderson KS
Biochemistry 47 8902-11 (2008)
PMID: 18672899

Function and Biology Details

Biochemical function:
Biological process:
Cellular component:
  • not assigned
Sequence domains:

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-163488 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Dihydrofolate reductase, DHFR Chains: A, B, C, D, E
Molecule details ›
Chains: A, B, C, D, E
Length: 521 amino acids
Theoretical weight: 60.31 KDa
Source organism: Cryptosporidium hominis
Expression system: Escherichia coli BL21(DE3)
Structure domains:

Ligands and Environments

4 bound ligands:
Ligand UMP 5 x UMP
Ligand CB3 5 x CB3
Ligand DHF 5 x DHF
Ligand NDP 5 x NDP
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: NSLS BEAMLINE X25
Spacegroup: C2
Unit cell:
a: 214.906Å b: 116.921Å c: 220.948Å
α: 90° β: 95.94° γ: 90°
R-values:
R R work R free
0.225 0.225 0.276
Expression system: Escherichia coli BL21(DE3)

Quick links

Citations

1 review citation

Cryptosporidium: genomic and biochemical features.
Rider et al. (2010)
6 other articles

2 mentions without citation

Drug Promiscuity in PDB: Protein Binding Site Similarity Is Key.
Haupt et al. (2013)
1 more