6h1y

CRYSTAL STRUCTURE OF A CHIMERIC VARIANT OF THIOREDOXIN FROM ESCHERICHIA COLI

Method: X-RAY DIFFRACTION Dmax: 65.2 Å Quality: GOOD

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

Thioredoxin 1,Thioredoxin (TrxA-1),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 Insufficient information Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain A; UniProt 2–14 Chain A; UniProt 24–109 Not recorded No other associated polymer X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;293 K;Crystals were obtained with a protein concentration of 20-25 mg/ml. The composition of the reservoir solution was 17% (w/v) PEG10000, 0.1 M ammonium acetate and 0.1 M BIS-TRIS buffer, pH 5.5. Resolution 2.99 Å R-free 0.259
2 Insufficient information Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain B; UniProt 2–14 Chain B; UniProt 24–109 Not recorded No other associated polymer X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;293 K;Crystals were obtained with a protein concentration of 20-25 mg/ml. The composition of the reservoir solution was 17% (w/v) PEG10000, 0.1 M ammonium acetate and 0.1 M BIS-TRIS buffer, pH 5.5. Resolution 2.99 Å R-free 0.259

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 1–13; UniProt 2–14 Author chain A; PDBConstruct 22–107; UniProt 24–109 Author chain B; PDBConstruct 1–13; UniProt 2–14 Author chain B; PDBConstruct 22–107; UniProt 24–109

Thioredoxin 1,Thioredoxin (TrxA-1),Thioredoxin 1

Escherichia coli

UniProt Q980E5

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Insufficient information Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain A; UniProt 40–47 Not recorded No other associated polymer X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;293 K;Crystals were obtained with a protein concentration of 20-25 mg/ml. The composition of the reservoir solution was 17% (w/v) PEG10000, 0.1 M ammonium acetate and 0.1 M BIS-TRIS buffer, pH 5.5. Resolution 2.99 Å R-free 0.259
2 Insufficient information Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain B; UniProt 40–47 Not recorded No other associated polymer X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;293 K;Crystals were obtained with a protein concentration of 20-25 mg/ml. The composition of the reservoir solution was 17% (w/v) PEG10000, 0.1 M ammonium acetate and 0.1 M BIS-TRIS buffer, pH 5.5. Resolution 2.99 Å R-free 0.259

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.

1 other PDB entries and 3 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name Q980E5_SULSO
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 14–21; UniProt 40–47 Author chain B; PDBConstruct 14–21; UniProt 40–47

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 6h1y

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 6h1y
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2. Structure Basics 2. Structure Basics

Entry ID entry_id6h1y
Deposition date deposition_date2018-07-12
Structure title titleCRYSTAL STRUCTURE OF A CHIMERIC VARIANT OF THIOREDOXIN FROM ESCHERICHIA COLI
Keywords keywordsprotein thermal stability, loop size optimization, fundamental rules, chimeric proteins, protein stabilization, OXIDOREDUCTASE; OXIDOREDUCTASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier19.25
Radius of gyration Rg (electron density) rg_electron18.35
Forward intensity I(0) i09168890.00
Molecular weight molecular_weight23503.0 kDa
Excluded volume excluded_volume29907 ų
Envelope volume envelope_volume34704 ų
Hydration-shell volume shell_volume16512 ų
Envelope diameter envelope_diameter62.0
Shell Rg shell_rg23.68
Envelope Rg envelope_rg18.31
Shape Rg shape_rg18.33
Total Rg total_rg19.29
Total atoms total_atoms1656
Residues n_residues214
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 dmax65.2
Rg (real space) rg_real19.23
Rg uncertainty (real space) rg_real_error0.54
I(0) (real space) i0_real9.1690e+06
I(0) uncertainty (real space) i0_real_error1.3240e+05
Rg (reciprocal space) rg_reciprocal19.24
I(0) (reciprocal space) i0_reciprocal9169000.0000
Solution quality estimate total_estimate0.8557
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary23.6
Skewness Skewness skewness0.334
Kurtosis Kurtosis kurtosis-0.354
Angular range angular_range— – 0.4150 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha2955000.0000
Real-space data points n_real_points73
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.718; Stabil: 0.997; Sysdev: 1.000; Positv: 1.000; Valcen: 0.977; Smooth: 0.997

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (1)

7. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd6h1ya_
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_idd6h1yb_
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_id6h1yA00
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology30 — Glutaredoxin
Homologous superfamily homologous superfamily10 — Glutaredoxin
Domain ID domain_id6h1yB00
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)