3qe2

Crystal Structure of Human NADPH-Cytochrome P450 Reductase

Method: X-RAY DIFFRACTION Dmax: 118.2 Å Quality: EXCELLENT

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

NADPH--cytochrome P450 reductase

Homo sapiens

UniProt P16435

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 64–677 Fragment:UNP residues 64-677 FAD FLAVIN-ADENINE DINUCLEOTIDE × 1 FMN FLAVIN MONONUCLEOTIDE × 1 NAP NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE × 1 CA CALCIUM ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 6.5;292 K;100 mM MES, 50 mM calcium acetate, 0.5 M sodium chloride, 14% PEG4000, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 292KK Resolution 1.75 Å R-free 0.239
2 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain B; UniProt 64–677 Fragment:UNP residues 64-677 FAD FLAVIN-ADENINE DINUCLEOTIDE × 1 FMN FLAVIN MONONUCLEOTIDE × 1 NAP NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 6.5;292 K;100 mM MES, 50 mM calcium acetate, 0.5 M sodium chloride, 14% PEG4000, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 292KK Resolution 1.75 Å R-free 0.239

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.

8 other PDB entries and 12 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name NCPR_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 5–618; UniProt 64–677 Author chain B; PDBConstruct 5–618; UniProt 64–677

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 3qe2

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 3qe2
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2. Structure Basics 2. Structure Basics

Entry ID entry_id3qe2
Deposition date deposition_date2011-01-19
Structure title titleCrystal Structure of Human NADPH-Cytochrome P450 Reductase
Keywords keywordsCYPOR, cytochrome P450 reductase, Antley-Bixler Syndrome, flavoprotein, FMN, FAD, NADPH, OXIDOREDUCTASE; OXIDOREDUCTASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier36.97
Radius of gyration Rg (electron density) rg_electron36.53
Forward intensity I(0) i0316628000.00
Molecular weight molecular_weight140640.0 kDa
Excluded volume excluded_volume174250 ų
Envelope volume envelope_volume224620 ų
Hydration-shell volume shell_volume50803 ų
Envelope diameter envelope_diameter120.7
Shell Rg shell_rg43.24
Envelope Rg envelope_rg35.95
Shape Rg shape_rg36.54
Total Rg total_rg36.92
Total atoms total_atoms9893
Residues n_residues1210
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 dmax118.2
Rg (real space) rg_real36.90
Rg uncertainty (real space) rg_real_error0.74
I(0) (real space) i0_real3.1660e+08
I(0) uncertainty (real space) i0_real_error5.0660e+06
Rg (reciprocal space) rg_reciprocal36.94
I(0) (reciprocal space) i0_reciprocal316600000.0000
Solution quality estimate total_estimate0.9047
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary41.2
Skewness Skewness skewness0.221
Kurtosis Kurtosis kurtosis-0.639
Angular range angular_range— – 0.2150 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha90070000.0000
Real-space data points n_real_points44
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.939; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.991; Smooth: 0.949

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (6)

7. Fold Classification (SCOP + CATH) 14 domains

SCOP 2.08 (6 domains)

Domain ID domain_idd3qe2a1
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.23 — Flavodoxin-like
Superfamily Superfamily superfamilyc.23.5 — Flavoproteins
Family Family familyc.23.5.0 — automated matches
Domain ID domain_idd3qe2a2
Class classb — All beta proteins
Fold Fold foldb.43 — Reductase/isomerase/elongation factor common domain
Superfamily Superfamily superfamilyb.43.4 — Riboflavin synthase domain-like
Family Family familyb.43.4.1 — NADPH-cytochrome p450 reductase FAD-binding domain-like
Domain ID domain_idd3qe2a3
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.25 — Ferredoxin reductase-like, C-terminal NADP-linked domain
Superfamily Superfamily superfamilyc.25.1 — Ferredoxin reductase-like, C-terminal NADP-linked domain
Family Family familyc.25.1.0 — automated matches
Domain ID domain_idd3qe2b1
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.23 — Flavodoxin-like
Superfamily Superfamily superfamilyc.23.5 — Flavoproteins
Family Family familyc.23.5.0 — automated matches
Domain ID domain_idd3qe2b2
Class classb — All beta proteins
Fold Fold foldb.43 — Reductase/isomerase/elongation factor common domain
Superfamily Superfamily superfamilyb.43.4 — Riboflavin synthase domain-like
Family Family familyb.43.4.1 — NADPH-cytochrome p450 reductase FAD-binding domain-like
Domain ID domain_idd3qe2b3
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.25 — Ferredoxin reductase-like, C-terminal NADP-linked domain
Superfamily Superfamily superfamilyc.25.1 — Ferredoxin reductase-like, C-terminal NADP-linked domain
Family Family familyc.25.1.0 — automated matches

CATH v4.4 (8 domains)

Domain ID domain_id3qe2A01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily360 — Flavodoxin domain
Domain ID domain_id3qe2A02
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology30 — Elongation Factor Tu (Ef-tu); domain 3
Homologous superfamily homologous superfamily10 — Translation factors
Domain ID domain_id3qe2A03
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology990 — NADPH-cytochrome p450 Reductase; Chain A, domain 3
Homologous superfamily homologous superfamily10 — NADPH-cytochrome p450 Reductase; Chain A, domain 3
Domain ID domain_id3qe2A04
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily80 — Nucleotide-binding domain of ferredoxin-NADP reductase (FNR) module
Domain ID domain_id3qe2B01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily360 — Flavodoxin domain
Domain ID domain_id3qe2B02
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology30 — Elongation Factor Tu (Ef-tu); domain 3
Homologous superfamily homologous superfamily10 — Translation factors
Domain ID domain_id3qe2B03
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology990 — NADPH-cytochrome p450 Reductase; Chain A, domain 3
Homologous superfamily homologous superfamily10 — NADPH-cytochrome p450 Reductase; Chain A, domain 3
Domain ID domain_id3qe2B04
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily80 — Nucleotide-binding domain of ferredoxin-NADP reductase (FNR) module

8. Citations (1)

9. Files and Curves (10)