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4DFR:
CRYSTAL STRUCTURES OF ESCHERICHIA COLI AND LACTOBACILLUS CASEI DIHYDROFOLATE REDUCTASE REFINED AT 1.7 ANGSTROMS RESOLUTION. I. GENERAL FEATURES AND BINDING OF METHOTREXATE
PDB ID:
4DFR
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MMDB ID:
3154
PDB Deposition Date:
1982/6/25
Updated in MMDB:
2017/12
Experimental Method:
x-ray diffraction
Resolution:
1.7 Å
Source Organism:
Escherichia coli B
Similar Structures:
VAST+
Download sequence data
Biological Unit for 4DFR: dimeric; determined by author
Molecular Components in 4DFR
Label
Count
Molecule
Proteins (2 molecules)
A
B
2
Dihydrofolate Reductase
(Gene symbol:
folA
)
Chemicals and Non-standard biopolymers (5 molecules)
1
2
CHLORIDE ION
2
2
METHOTREXATE
3
1
CALCIUM ION
* Click molecule labels to explore molecular sequence information.
Citing MMDB
Madej T, Lanczycki CJ, Zhang D, Thiessen PA, Geer RC, Marchler-Bauer A, Bryant SH.
"
MMDB and VAST+: tracking structural similarities between macromolecular complexes.
Nucleic Acids Res. 2014 Jan; 42(Database issue)
:D297-303