› 6cw7

X-ray diffraction
1.03Å resolution

E. coli DHFR product complex with (6S)-5,6,7,8-TETRAHYDROFOLATE

Released:
DOI: 10.2210/pdb6cw7/pdb
Model geometry
Fit model/data
PDB entry 6cw7 coloured by chain, front view.
PDB entry 6cw7 coloured by chain, side view.
PDB entry 6cw7 coloured by chain, top view.
Source organism: Escherichia coli CFT073
Primary publication:
The crystal structure of a tetrahydrofolate-bound dihydrofolate reductase reveals the origin of slow product release.
Cao H, Gao M, Zhou H, Skolnick J
OpenAccess logo Commun Biol 1 226 (2018)
PMID: 30564747

Function and Biology Details

Reaction catalysed: 
5,6,7,8-tetrahydrofolate + NADP(+) = 7,8-dihydrofolate + NADPH
Biochemical function:
Biological process:
Cellular component:
Sequence domains:

Structure analysis Details

Assembly composition:
monomeric (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-142189 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Dihydrofolate reductase Chain: A
Molecule details ›
Chain: A
Length: 165 amino acids
Theoretical weight: 18.85 KDa
Source organism: Escherichia coli CFT073
Expression system: Escherichia coli
UniProt:
  • Canonical: P0ABQ4 (Residues: 1-159; Coverage: 100%)
Gene names: JW0047, b0048, folA, tmrA
Sequence domains: Dihydrofolate reductase
Structure domains: Dihydrofolate Reductase, subunit A

Ligands and Environments

3 bound ligands:
Ligand THG 1 x THG
Ligand CL 3 x CL
Ligand MG 4 x MG
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 31-ID
Spacegroup: P212121
Unit cell:
a: 33.861Å b: 51.529Å c: 77.841Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.186 0.186 0.206
Expression system: Escherichia coli

Quick links

Citations

3 review citations

Harnessing Conformational Plasticity to Generate Designer Enzymes.
Crean et al. (2020)
2 more

3 mentions without citation

The crystal structure of a tetrahydrofolate-bound dihydrofolate reductase reveals the origin of slow product release.
Cao et al. (2018)
2 more

PDB-REDO

The sliders below show the change in model quality between original PDB entry and the PDB-REDO entry

Model Geometry
 
 
Data not available
DNA/RNA Geometry
 
 
Data not available
Fit model/data
 
 
Data not available
PDB-REDO