7ESE

The Crystal Structure of human DHFR from Biortus

• PDB DOI: https://doi.org/10.2210/pdb7ESE/pdb

• Classification: OXIDOREDUCTASE
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2021-05-10 Released: 2021-05-26 
• Deposition Author(s): Wang, F., Cheng, W., Xu, C., Qi, J., Bao, X., Miao, Q.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.85 Å
• R-Value Free: 0.285 
• R-Value Work: 0.240 

Starting Model: experimental

Literature

The Crystal Structure of human DHFR from Biortus

Wang, F., Cheng, W., Xu, C., Qi, J., Bao, X., Miao, Q.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 24.68 kDa 
• Atom Count: 1,652 
• Modelled Residue Count: 185 
• Deposited Residue Count: 204 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Dihydrofolate reductase	A	204	Homo sapiens	Mutation(s): 0  Gene Names: DHFR EC: 1.5.1.3
UniProt & NIH Common Fund Data Resources
Find proteins for P00374 (Homo sapiens) Explore P00374  Go to UniProtKB:  P00374
PHAROS:  P00374 GTEx:  ENSG00000228716

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
NAP	B [auth A]	NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE C21 H28 N7 O17 P3 XJLXINKUBYWONI-NNYOXOHSSA-N
FOL	C [auth A]	FOLIC ACID C19 H19 N7 O6 OVBPIULPVIDEAO-LBPRGKRZSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.85 Å
• R-Value Free: 0.285 
• R-Value Work: 0.240 
• Space Group: P 4₃ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 61.569	α = 90
b = 61.569	β = 90
c = 94.068	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
XDS	data reduction
Aimless	data scaling
PHASER	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2021-05-26 
Deposition Author(s): Wang, F., Cheng, W., Xu, C., Qi, J., Bao, X., Miao, Q.

Revision History  

• Version 1.0: 2021-05-26
  Type: Initial release
  
• Version 1.1: 2023-11-29
  Changes: Data collection, Database references, Derived calculations, Refinement description