6a7e

Human dihydrofolate reductase complexed with NADPH and BT2

Method: X-RAY DIFFRACTION Dmax: 57.9 Å Quality: GOOD

1. Protein Identity and Related Structures Protein Identity & Related Structures

Dihydrofolate reductase

Homo sapiens

UniProt P00374

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain A; UniProt 2–187 Not recorded 9QR 5-(4-{3-[(2,4-diamino-6-ethylpyrimidin-5-yl)oxy]propoxy}phenyl)-6-ethylpyrimidine-2,4-diamine × 1 NDP NADPH DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;297 K;2.78 M AMMONIUM SULPHATE, 100 mM K2HPO4, 3%(V/V) ETHANOL Resolution 1.85 Å R-free 0.237

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

88 other PDB entries and 105 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name DYR_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–186; UniProt 2–187

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

SAXS scattering curve SAXS Profile

SAXS profile for 6a7e

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 6a7e
Download Download

2. Structure Basics 2. Structure Basics

Entry ID entry_id6a7e
Deposition date deposition_date2018-07-02
Structure title titleHuman dihydrofolate reductase complexed with NADPH and BT2
Keywords keywordsDHFR, antifolate, inhibitor, OXIDOREDUCTASE; OXIDOREDUCTASE
Experimental Method methodX-RAY DIFFRACTION

3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier17.29
Radius of gyration Rg (electron density) rg_electron15.98
Forward intensity I(0) i09333100.00
Molecular weight molecular_weight22492.0 kDa
Excluded volume excluded_volume28159 ų
Envelope volume envelope_volume31572 ų
Hydration-shell volume shell_volume16266 ų
Envelope diameter envelope_diameter54.7
Shell Rg shell_rg22.35
Envelope Rg envelope_rg16.40
Shape Rg shape_rg15.97
Total Rg total_rg17.10
Total atoms total_atoms1581
Residues n_residues186
Spherical-harmonic order n_harmonics20
q range q_range— – 0.5000 −1
Data points n_points101
Shell type shell_typedirectional
Solvent electron density solvent_density0.3340 e/ų
Shell contrast contrast_shell0.0300 e/ų
CRYSOL version crysol_version4.1.3

4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax57.9
Rg (real space) rg_real17.16
Rg uncertainty (real space) rg_real_error0.39
I(0) (real space) i0_real9.3330e+06
I(0) uncertainty (real space) i0_real_error1.1550e+05
Rg (reciprocal space) rg_reciprocal17.18
I(0) (reciprocal space) i0_reciprocal9333000.0000
Solution quality estimate total_estimate0.7887
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks3
Primary peak position r_peak_primary22.9
Skewness Skewness skewness0.116
Kurtosis Kurtosis kurtosis-0.367
Angular range angular_range— – 0.4600 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha2359000.0000
Real-space data points n_real_points77
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.750; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.999; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

7. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd6a7ea_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.71 — Dihydrofolate reductase-like
Superfamily Superfamily superfamilyc.71.1 — Dihydrofolate reductase-like
Family Family familyc.71.1.1 — Dihydrofolate reductases

CATH v4.4 (1 domains)

Domain ID domain_id6a7eA00
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology430 — Dihydrofolate Reductase, subunit A
Homologous superfamily homologous superfamily10 — Dihydrofolate Reductase, subunit A

8. Citations (1)

9. Files and Curves (10)