Biological Assembly 1  

 3D View: Structure | Electron Density | Ligand Interaction

Standalone Viewers  
Protein Workshop | Ligand Explorer

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

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: authors reported there is no experimental evidence

Macromolecule Content

• Total Structure Weight: 20035.04 
• Atom Count: 1373 
• Residue Count: 165 
• Unique protein chains: 1

6CYV

E. coli DHFR ternary complex with NADP and dihydrofolate

• DOI: 10.2210/pdb6CYV/pdb

• Classification: OXIDOREDUCTASE
• Organism(s): Escherichia coli O6:H1 (strain CFT073 / ATCC 700928 / UPEC)
• Expression System: Escherichia coli


• Deposited: 2018-04-06 Released: 2019-01-09 
• Deposition Author(s): Cao, H., Rodrigues, J., Benach, J., Frommelt, A., Morisco, L., Koss, J., Shakhnovich, E., Skolnick, J.
• Funding Organization(s): National Institutes of Health/National Institute of General Medical Sciences 

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.3 Å
• R-Value Free: 0.204 
• R-Value Work: 0.176 

Literature

The crystal structure of a tetrahydrofolate-bound dihydrofolate reductase reveals the origin of slow product release.

Cao, H., Gao, M., Zhou, H., Skolnick, J.

(2018) Commun Biol 1: 226-226

• PubMed: 30564747 
• Primary Citation of Related Structures:  
  6CXK, 6CW7, 6CQA

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
Dihydrofolate reductase	A	165	Escherichia coli O6:H1 (strain CFT073 / ATCC 700928 / UPEC)	Mutation(s): 0  Gene Names: folA EC: 1.5.1.3
Find proteins for P0ABQ5 (Escherichia coli O6:H1 (strain CFT073 / ATCC 700928 / UPEC)) Go to UniProtKB:  P0ABQ5

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram & Interactions
NAP	A	NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE 2'-MONOPHOSPHOADENOSINE 5'-DIPHOSPHORIBOSE C21 H28 N7 O17 P3 XJLXINKUBYWONI-NNYOXOHSSA-N
DHF	A	DIHYDROFOLIC ACID C19 H21 N7 O6 OZRNSSUDZOLUSN-LBPRGKRZSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.3 Å
• R-Value Free: 0.204 
• R-Value Work: 0.176 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length (Å)	Angle (°)
a = 34.876	α = 90.00
b = 58.749	β = 90.00
c = 79.324	γ = 90.00

Software Package:

Software Name	Purpose
PHENIX	refinement
XDS	data reduction
PHASER	phasing
PDB_EXTRACT	data extraction
XSCALE	data scaling

Structure Validation

Entry History & Funding Information

Deposition Data

• Deposited Date: 2018-04-06 
• Released Date: 2019-01-09 
• Deposition Author(s): Cao, H., Rodrigues, J., Benach, J., Frommelt, A., Morisco, L., Koss, J., Shakhnovich, E., Skolnick, J.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Institute of General Medical Sciences	United States	R35GM118039

Revision History 

• Version 1.0: 2019-01-09
  Type: Initial release