3dyr

Crystal structure of E. coli thioredoxin mutant I76T in its oxidized form

Method: X-RAY DIFFRACTION Dmax: 61.8 Å Quality: REASONABLE

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

Thioredoxin-1

Escherichia coli

UniProt P0AA25

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 2–109 Mutation:I76T No other associated polymer X-RAY DIFFRACTION mmCIF provides none of the parsed experimental conditions Resolution 2.00 Å R-free 0.290
2 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain B; UniProt 2–109 Mutation:I76T No other associated polymer X-RAY DIFFRACTION mmCIF provides none of the parsed experimental conditions Resolution 2.00 Å R-free 0.290

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.

52 other PDB entries and 99 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name THIO_ECOLI
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 2–109; UniProt 2–109 Author chain B; PDBConstruct 2–109; UniProt 2–109

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 3dyr

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id3dyr
Deposition date deposition_date2008-07-28
Structure title titleCrystal structure of E. coli thioredoxin mutant I76T in its oxidized form
Keywords keywordsmutant protein, Electron transport, Host-virus interaction, Redox-active center, Transport; ELECTRON TRANSPORT
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier19.33
Radius of gyration Rg (electron density) rg_electron18.18
Forward intensity I(0) i08812940.00
Molecular weight molecular_weight22666.0 kDa
Excluded volume excluded_volume28684 ų
Envelope volume envelope_volume33674 ų
Hydration-shell volume shell_volume16035 ų
Envelope diameter envelope_diameter60.9
Shell Rg shell_rg23.47
Envelope Rg envelope_rg18.23
Shape Rg shape_rg18.17
Total Rg total_rg19.10
Total atoms total_atoms1598
Residues n_residues218
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 dmax61.8
Rg (real space) rg_real19.30
Rg uncertainty (real space) rg_real_error0.32
I(0) (real space) i0_real8.8130e+06
I(0) uncertainty (real space) i0_real_error1.1230e+05
Rg (reciprocal space) rg_reciprocal19.30
I(0) (reciprocal space) i0_reciprocal8813000.0000
Solution quality estimate total_estimate0.7447
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary60.9
Skewness Skewness skewness0.279
Kurtosis Kurtosis kurtosis-0.461
Angular range angular_range— – 0.4100 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha2006000.0000
Real-space data points n_real_points72
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.872; Stabil: 1.000; Sysdev: 0.356; Positv: 1.000; Valcen: 0.996; Smooth: 0.998

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (2)

7. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (4 domains)

Domain ID domain_idd3dyra1
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.47 — Thioredoxin fold
Superfamily Superfamily superfamilyc.47.1 — Thioredoxin-like
Family Family familyc.47.1.1 — Thioltransferase
Domain ID domain_idd3dyra2
Class classl — Artifacts
Fold Fold foldl.1 — Tags
Superfamily Superfamily superfamilyl.1.1 — Tags
Family Family familyl.1.1.1 — Tags
Domain ID domain_idd3dyra3
Class classl — Artifacts
Fold Fold foldl.1 — Tags
Superfamily Superfamily superfamilyl.1.1 — Tags
Family Family familyl.1.1.1 — Tags
Domain ID domain_idd3dyrb_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.47 — Thioredoxin fold
Superfamily Superfamily superfamilyc.47.1 — Thioredoxin-like
Family Family familyc.47.1.1 — Thioltransferase

CATH v4.4 (2 domains)

Domain ID domain_id3dyrA00
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology30 — Glutaredoxin
Homologous superfamily homologous superfamily10 — Glutaredoxin
Domain ID domain_id3dyrB00
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology30 — Glutaredoxin
Homologous superfamily homologous superfamily10 — Glutaredoxin

8. Citations (1)

9. Files and Curves (10)