5HUI

6-substituted pyrido[3,2-d]pyrimidine--6-4'-trifluoromethoxyphenyl)

• PDB DOI: https://doi.org/10.2210/pdb5HUI/pdb

• Classification: oxidoreductase/oxidoreductase inhibitor
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2016-01-27 Released: 2017-02-01 
• Deposition Author(s): Cody, V.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.46 Å
• R-Value Free: 0.243 
• R-Value Work: 0.211 
• R-Value Observed: 0.212 

Starting Model: experimental

Literature

Human dihydrofolate reductase ternary complex with a series of 6-substituted pyrido[3,2]pyrimidine-6-(4'-trifluoromethoxypheny)-2,4-diamines

Cody, V., Gangjee, A.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 22.54 kDa 
• Atom Count: 1,677 
• Modelled Residue Count: 186 
• Deposited Residue Count: 186 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Dihydrofolate reductase	A	186	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
GTEx:  ENSG00000228716

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
NDP	B [auth A]	NADPH DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE C21 H30 N7 O17 P3 ACFIXJIJDZMPPO-NNYOXOHSSA-N
65N	C [auth A]	N~6~-methyl-N~6~-[4-(trifluoromethoxy)phenyl]pyrido[3,2-d]pyrimidine-2,4,6-triamine C15 H13 F3 N6 O JEGBSKQTMYWCPV-UHFFFAOYSA-N
SO4	D [auth A]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.46 Å
• R-Value Free: 0.243 
• R-Value Work: 0.211 
• R-Value Observed: 0.212 
• Space Group: H 3

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 86.518	α = 90
b = 86.518	β = 90
c = 76.56	γ = 120

Software Package:

Software Name	Purpose
REFMAC	refinement
HKL-2000	data reduction
SCALA	data scaling
MOLREP	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2017-02-01 
Deposition Author(s): Cody, V.

Revision History  

• Version 1.0: 2017-02-01
  Type: Initial release
  
• Version 1.1: 2017-09-27
  Changes: Author supporting evidence
• Version 1.2: 2023-09-27
  Changes: Data collection, Database references, Refinement description