1m7t

Solution Structure and Dynamics of the Human-Escherichia coli Thioredoxin Chimera: Insights into Thermodynamic Stability

Method: SOLUTION NMR Dmax: 38.1 Å Quality: GOOD

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

Chimera of Human and E. coli thioredoxin

Homo sapiens, Escherichia coli

UniProt P00274

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 68–107 Not recorded No other associated polymer SOLUTION NMR NMR measurement conditions:pH 7;308 K NMR sample composition:1 mM protein in 100 mM sodium phosphate buffer (pH 7.0), 20 M EDTA, 0.02% sodium azide, and 10% D2O. | 90% H2O/10% D2O Resolution not provided

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.

3 other PDB entries and 5 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 67–106; UniProt 68–107

Chimera of Human and E. coli thioredoxin

Homo sapiens, Escherichia coli

UniProt P10599

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 0–65 Not recorded No other associated polymer SOLUTION NMR NMR measurement conditions:pH 7;308 K NMR sample composition:1 mM protein in 100 mM sodium phosphate buffer (pH 7.0), 20 M EDTA, 0.02% sodium azide, and 10% D2O. | 90% H2O/10% D2O Resolution not provided

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.

34 other PDB entries and 59 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name THIO_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–66; UniProt 0–65

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 1m7t

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 1m7t
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2. Structure Basics 2. Structure Basics

Entry ID entry_id1m7t
Deposition date deposition_date2002-07-22
Structure title titleSolution Structure and Dynamics of the Human-Escherichia coli Thioredoxin Chimera: Insights into Thermodynamic Stability
Keywords keywordschimera, human, E. coli, dynamics, stability, ELECTRON TRANSPORT; ELECTRON TRANSPORT
Experimental Method methodSOLUTION NMR

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

Radius of gyration Rg (Guinier) rg_guinier13.16
Radius of gyration Rg (electron density) rg_electron12.69
Forward intensity I(0) i0730159000.00
Molecular weight molecular_weight244890.0 kDa
Excluded volume excluded_volume312610 ų
Envelope volume envelope_volume20541 ų
Hydration-shell volume shell_volume12645 ų
Envelope diameter envelope_diameter42.2
Shell Rg shell_rg19.63
Envelope Rg envelope_rg13.80
Shape Rg shape_rg12.65
Total Rg total_rg12.95
Total atoms total_atoms34818
Residues n_residues2247
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 dmax38.1
Rg (real space) rg_real13.02
Rg uncertainty (real space) rg_real_error0.14
I(0) (real space) i0_real7.3020e+08
I(0) uncertainty (real space) i0_real_error7.3550e+06
Rg (reciprocal space) rg_reciprocal13.03
I(0) (reciprocal space) i0_reciprocal730200000.0000
Solution quality estimate total_estimate0.8971
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary15.9
Skewness Skewness skewness-0.098
Kurtosis Kurtosis kurtosis-0.514
Angular range angular_range— – 0.5000 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha215200.0000
Real-space data points n_real_points80
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.914; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.958; Smooth: 0.959

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (1)

7. Fold Classification (SCOP + CATH) 3 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd1m7ta1
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_idd1m7ta2
Class classl — Artifacts
Fold Fold foldl.1 — Tags
Superfamily Superfamily superfamilyl.1.1 — Tags
Family Family familyl.1.1.1 — Tags

CATH v4.4 (1 domains)

Domain ID domain_id1m7tA00
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)