4eiz

Structure of Nb113 bound to apoDHFR

Method: X-RAY DIFFRACTION Dmax: 100.1 Å Quality: GOOD

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

Dihydrofolate reductase

Escherichia coli

UniProt P0ABQ4

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 heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 1–159 Not recorded Nb113 Camel antibody fragment × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 5.6;293 K;25.5% PEG4000, 0.085M NaCitrate, 0.17 M Ammonium Sulphate, 25% Glycerol, pH 5.6, VAPOR DIFFUSION, SITTING DROP, temperature 293K Resolution 2.20 Å R-free 0.224
2 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain B; UniProt 1–159 Not recorded Nb113 Camel antibody fragment × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 5.6;293 K;25.5% PEG4000, 0.085M NaCitrate, 0.17 M Ammonium Sulphate, 25% Glycerol, pH 5.6, VAPOR DIFFUSION, SITTING DROP, temperature 293K Resolution 2.20 Å R-free 0.224

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.

141 other PDB entries and 155 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name DYR_ECOLI
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–159; UniProt 1–159 Author chain B; PDBConstruct 1–159; UniProt 1–159

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 4eiz

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 4eiz
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2. Structure Basics 2. Structure Basics

Entry ID entry_id4eiz
Deposition date deposition_date2012-04-06
Structure title titleStructure of Nb113 bound to apoDHFR
Keywords keywordsNADP BINDING, OXIDOREDUCTASE-IMMUNE SYSTEM complex; OXIDOREDUCTASE/IMMUNE SYSTEM
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier29.05
Radius of gyration Rg (electron density) rg_electron29.00
Forward intensity I(0) i066511500.00
Molecular weight molecular_weight62912.0 kDa
Excluded volume excluded_volume78034 ų
Envelope volume envelope_volume97618 ų
Hydration-shell volume shell_volume29480 ų
Envelope diameter envelope_diameter106.1
Shell Rg shell_rg34.49
Envelope Rg envelope_rg29.07
Shape Rg shape_rg28.96
Total Rg total_rg29.64
Total atoms total_atoms4432
Residues n_residues572
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 dmax100.1
Rg (real space) rg_real29.22
Rg uncertainty (real space) rg_real_error0.90
I(0) (real space) i0_real6.6510e+07
I(0) uncertainty (real space) i0_real_error1.1190e+06
Rg (reciprocal space) rg_reciprocal29.15
I(0) (reciprocal space) i0_reciprocal66510000.0000
Solution quality estimate total_estimate0.8488
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary30.9
Skewness Skewness skewness0.566
Kurtosis Kurtosis kurtosis0.057
Angular range angular_range— – 0.2750 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha14730000.0000
Real-space data points n_real_points56
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.793; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.837; Smooth: 0.814

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

7. Fold Classification (SCOP + CATH) 10 domains

SCOP 2.08 (6 domains)

Domain ID domain_idd4eiza_
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
Domain ID domain_idd4eizb_
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
Domain ID domain_idd4eizc1
Class classb — All beta proteins
Fold Fold foldb.1 — Immunoglobulin-like beta-sandwich
Superfamily Superfamily superfamilyb.1.1 — Immunoglobulin
Family Family familyb.1.1.1 — V set domains (antibody variable domain-like)
Domain ID domain_idd4eizc2
Class classl — Artifacts
Fold Fold foldl.1 — Tags
Superfamily Superfamily superfamilyl.1.1 — Tags
Family Family familyl.1.1.1 — Tags
Domain ID domain_idd4eizd1
Class classb — All beta proteins
Fold Fold foldb.1 — Immunoglobulin-like beta-sandwich
Superfamily Superfamily superfamilyb.1.1 — Immunoglobulin
Family Family familyb.1.1.1 — V set domains (antibody variable domain-like)
Domain ID domain_idd4eizd2
Class classl — Artifacts
Fold Fold foldl.1 — Tags
Superfamily Superfamily superfamilyl.1.1 — Tags
Family Family familyl.1.1.1 — Tags

CATH v4.4 (4 domains)

Domain ID domain_id4eizA00
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology430 — Dihydrofolate Reductase, subunit A
Homologous superfamily homologous superfamily10 — Dihydrofolate Reductase, subunit A
Domain ID domain_id4eizB00
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology430 — Dihydrofolate Reductase, subunit A
Homologous superfamily homologous superfamily10 — Dihydrofolate Reductase, subunit A
Domain ID domain_id4eizC00
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily10 — Immunoglobulins
Domain ID domain_id4eizD00
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily10 — Immunoglobulins

8. Citations (1)

9. Files and Curves (10)