2eir

Design of Disulfide-linked Thioredoxin Dimers and Multimers Through Analysis of Crystal Contacts

Method: X-RAY DIFFRACTION Dmax: 80.6 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:E101C/A105C CU COPPER (II) ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 4.5;277 K;45% MPD, 5MM CUPRIC ACETATE, 0.1M SODIUM ACETATE, pH 4.50, VAPOR DIFFUSION, HANGING DROP, temperature 277K Resolution 2.50 Å R-free 0.311
2 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain B; UniProt 2–109 Mutation:E101C/A105C CU COPPER (II) ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 4.5;277 K;45% MPD, 5MM CUPRIC ACETATE, 0.1M SODIUM ACETATE, pH 4.50, VAPOR DIFFUSION, HANGING DROP, temperature 277K Resolution 2.50 Å R-free 0.311
3 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain C; UniProt 2–109 Mutation:E101C/A105C CU COPPER (II) ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 4.5;277 K;45% MPD, 5MM CUPRIC ACETATE, 0.1M SODIUM ACETATE, pH 4.50, VAPOR DIFFUSION, HANGING DROP, temperature 277K Resolution 2.50 Å R-free 0.311
4 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain D; UniProt 2–109 Mutation:E101C/A105C CU COPPER (II) ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 4.5;277 K;45% MPD, 5MM CUPRIC ACETATE, 0.1M SODIUM ACETATE, pH 4.50, VAPOR DIFFUSION, HANGING DROP, temperature 277K Resolution 2.50 Å R-free 0.311

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 97 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 1–108; UniProt 2–109 Author chain B; PDBConstruct 1–108; UniProt 2–109 Author chain C; PDBConstruct 1–108; UniProt 2–109 Author chain D; PDBConstruct 1–108; 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 2eir

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 2eir
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2. Structure Basics 2. Structure Basics

Entry ID entry_id2eir
Deposition date deposition_date2007-03-13
Structure title titleDesign of Disulfide-linked Thioredoxin Dimers and Multimers Through Analysis of Crystal Contacts
Keywords keywordsTHIOREDOXIN, MUTANT, DI-SULFIDE BOND, ELECTRON TRANSPORT; ELECTRON TRANSPORT
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier25.98
Radius of gyration Rg (electron density) rg_electron24.77
Forward intensity I(0) i034378500.00
Molecular weight molecular_weight46612.0 kDa
Excluded volume excluded_volume58944 ų
Envelope volume envelope_volume72825 ų
Hydration-shell volume shell_volume24815 ų
Envelope diameter envelope_diameter79.7
Shell Rg shell_rg31.55
Envelope Rg envelope_rg24.29
Shape Rg shape_rg24.69
Total Rg total_rg25.82
Total atoms total_atoms3260
Residues n_residues428
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 dmax80.6
Rg (real space) rg_real26.25
Rg uncertainty (real space) rg_real_error0.18
I(0) (real space) i0_real3.3690e+07
I(0) uncertainty (real space) i0_real_error3.7520e+05
Rg (reciprocal space) rg_reciprocal25.94
I(0) (reciprocal space) i0_reciprocal34380000.0000
Solution quality estimate total_estimate0.7186
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary27.7
Skewness Skewness skewness0.238
Kurtosis Kurtosis kurtosis-0.557
Angular range angular_range— – 0.3050 −1
Current regularization parameter α current_alpha6.3740
Highest regularization parameter α highest_alpha9303000.0000
Real-space data points n_real_points62
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.970; Stabil: 0.921; Sysdev: 0.000; Positv: 1.000; Valcen: 0.995; Smooth: 0.695

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

7. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

Domain ID domain_idd2eira_
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_idd2eirb_
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_idd2eirc_
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_idd2eird_
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 (4 domains)

Domain ID domain_id2eirA00
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology30 — Glutaredoxin
Homologous superfamily homologous superfamily10 — Glutaredoxin
Domain ID domain_id2eirB00
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology30 — Glutaredoxin
Homologous superfamily homologous superfamily10 — Glutaredoxin
Domain ID domain_id2eirC00
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology30 — Glutaredoxin
Homologous superfamily homologous superfamily10 — Glutaredoxin
Domain ID domain_id2eirD00
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)