3duf

Snapshots of catalysis in the E1 subunit of the pyruvate dehydrogenase multi-enzyme complex

Method: X-RAY DIFFRACTION Dmax: 167.7 Å Quality: GOOD

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

Pyruvate dehydrogenase E1 component subunit alpha

Bacillus stearothermophilus

UniProt P21873

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 × 5 PDB declaration: pentameric(5) Consistent with protein copy count Chain A; UniProt 1–369 Chain C; UniProt 1–369 Not recorded Pyruvate dehydrogenase E1 component subunit beta × 2 (P21874) Dihydrolipoyllysine-residue acetyltransferase component of pyruvate dehydrogenase complex × 1 (P11961) MG MAGNESIUM ION × 3 R1T 2-{4-[(4-AMINO-2-METHYLPYRIMIDIN-5-YL)METHYL]-5-[(1R)-1-HYDROXYETHYL]-3-METHYL-2-THIENYL}ETHYL TRIHYDROGEN DIPHOSPHATE × 2 K POTASSIUM ION × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 5.5;291.15 K;The protein solution was then mixed in 1:1 volume ratio of crystallization buffer consisting of 8-12 % mono-methyl ether polyethylene glycol (MME PEG) 5000, 0.1 M Na maleate pH 5.5, and the droplet was left to equilibrate against a reservoir of neat crystallization buffer., VAPOR DIFFUSION, SITTING DROP, temperature 291.15K Resolution 2.50 Å R-free 0.263
2 Protein heterocomplex Heteromer Protein × 5 PDB declaration: pentameric(5) Consistent with protein copy count Chain E; UniProt 1–369 Chain G; UniProt 1–369 Not recorded Pyruvate dehydrogenase E1 component subunit beta × 2 (P21874) Dihydrolipoyllysine-residue acetyltransferase component of pyruvate dehydrogenase complex × 1 (P11961) MG MAGNESIUM ION × 2 R1T 2-{4-[(4-AMINO-2-METHYLPYRIMIDIN-5-YL)METHYL]-5-[(1R)-1-HYDROXYETHYL]-3-METHYL-2-THIENYL}ETHYL TRIHYDROGEN DIPHOSPHATE × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 5.5;291.15 K;The protein solution was then mixed in 1:1 volume ratio of crystallization buffer consisting of 8-12 % mono-methyl ether polyethylene glycol (MME PEG) 5000, 0.1 M Na maleate pH 5.5, and the droplet was left to equilibrate against a reservoir of neat crystallization buffer., VAPOR DIFFUSION, SITTING DROP, temperature 291.15K Resolution 2.50 Å R-free 0.263

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.

4 other PDB entries and 8 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name ODPA_BACST
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–369; UniProt 1–369 Author chain C; PDBConstruct 1–369; UniProt 1–369 Author chain E; PDBConstruct 1–369; UniProt 1–369 Author chain G; PDBConstruct 1–369; UniProt 1–369

Pyruvate dehydrogenase E1 component subunit beta

Bacillus stearothermophilus

UniProt P21874

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 × 5 PDB declaration: pentameric(5) Consistent with protein copy count Chain B; UniProt 1–325 Chain D; UniProt 1–325 Not recorded Pyruvate dehydrogenase E1 component subunit alpha × 2 (P21873) Dihydrolipoyllysine-residue acetyltransferase component of pyruvate dehydrogenase complex × 1 (P11961) MG MAGNESIUM ION × 3 R1T 2-{4-[(4-AMINO-2-METHYLPYRIMIDIN-5-YL)METHYL]-5-[(1R)-1-HYDROXYETHYL]-3-METHYL-2-THIENYL}ETHYL TRIHYDROGEN DIPHOSPHATE × 2 K POTASSIUM ION × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 5.5;291.15 K;The protein solution was then mixed in 1:1 volume ratio of crystallization buffer consisting of 8-12 % mono-methyl ether polyethylene glycol (MME PEG) 5000, 0.1 M Na maleate pH 5.5, and the droplet was left to equilibrate against a reservoir of neat crystallization buffer., VAPOR DIFFUSION, SITTING DROP, temperature 291.15K Resolution 2.50 Å R-free 0.263
2 Protein heterocomplex Heteromer Protein × 5 PDB declaration: pentameric(5) Consistent with protein copy count Chain F; UniProt 1–325 Chain H; UniProt 1–325 Not recorded Pyruvate dehydrogenase E1 component subunit alpha × 2 (P21873) Dihydrolipoyllysine-residue acetyltransferase component of pyruvate dehydrogenase complex × 1 (P11961) MG MAGNESIUM ION × 2 R1T 2-{4-[(4-AMINO-2-METHYLPYRIMIDIN-5-YL)METHYL]-5-[(1R)-1-HYDROXYETHYL]-3-METHYL-2-THIENYL}ETHYL TRIHYDROGEN DIPHOSPHATE × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 5.5;291.15 K;The protein solution was then mixed in 1:1 volume ratio of crystallization buffer consisting of 8-12 % mono-methyl ether polyethylene glycol (MME PEG) 5000, 0.1 M Na maleate pH 5.5, and the droplet was left to equilibrate against a reservoir of neat crystallization buffer., VAPOR DIFFUSION, SITTING DROP, temperature 291.15K Resolution 2.50 Å R-free 0.263

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.

4 other PDB entries and 8 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name ODPB_BACST
Isoform
PDB entities 2
Chains and sequence ranges Author chain B; PDBConstruct 1–325; UniProt 1–325 Author chain D; PDBConstruct 1–325; UniProt 1–325 Author chain F; PDBConstruct 1–325; UniProt 1–325 Author chain H; PDBConstruct 1–325; UniProt 1–325

Dihydrolipoyllysine-residue acetyltransferase component of pyruvate dehydrogenase complex

Bacillus stearothermophilus

UniProt P11961

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 × 5 PDB declaration: pentameric(5) Consistent with protein copy count Chain I; UniProt 1–428 Not recorded Pyruvate dehydrogenase E1 component subunit alpha × 2 (P21873) Pyruvate dehydrogenase E1 component subunit beta × 2 (P21874) MG MAGNESIUM ION × 3 R1T 2-{4-[(4-AMINO-2-METHYLPYRIMIDIN-5-YL)METHYL]-5-[(1R)-1-HYDROXYETHYL]-3-METHYL-2-THIENYL}ETHYL TRIHYDROGEN DIPHOSPHATE × 2 K POTASSIUM ION × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 5.5;291.15 K;The protein solution was then mixed in 1:1 volume ratio of crystallization buffer consisting of 8-12 % mono-methyl ether polyethylene glycol (MME PEG) 5000, 0.1 M Na maleate pH 5.5, and the droplet was left to equilibrate against a reservoir of neat crystallization buffer., VAPOR DIFFUSION, SITTING DROP, temperature 291.15K Resolution 2.50 Å R-free 0.263
2 Protein heterocomplex Heteromer Protein × 5 PDB declaration: pentameric(5) Consistent with protein copy count Chain J; UniProt 1–428 Not recorded Pyruvate dehydrogenase E1 component subunit alpha × 2 (P21873) Pyruvate dehydrogenase E1 component subunit beta × 2 (P21874) MG MAGNESIUM ION × 2 R1T 2-{4-[(4-AMINO-2-METHYLPYRIMIDIN-5-YL)METHYL]-5-[(1R)-1-HYDROXYETHYL]-3-METHYL-2-THIENYL}ETHYL TRIHYDROGEN DIPHOSPHATE × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 5.5;291.15 K;The protein solution was then mixed in 1:1 volume ratio of crystallization buffer consisting of 8-12 % mono-methyl ether polyethylene glycol (MME PEG) 5000, 0.1 M Na maleate pH 5.5, and the droplet was left to equilibrate against a reservoir of neat crystallization buffer., VAPOR DIFFUSION, SITTING DROP, temperature 291.15K Resolution 2.50 Å R-free 0.263

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.

16 other PDB entries and 20 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name ODP2_BACST
Isoform
PDB entities 3
Chains and sequence ranges Author chain I; PDBConstruct 1–428; UniProt 1–428 Author chain J; PDBConstruct 1–428; UniProt 1–428

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 3duf

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id3duf
Deposition date deposition_date2008-07-17
Structure title titleSnapshots of catalysis in the E1 subunit of the pyruvate dehydrogenase multi-enzyme complex
Keywords keywords;OXIDOREDUCTASE, PYRUVATE, DEHYDROGENASE, DIHYDROLIPOYL, ACETYL TRANSFERASE, MULTIENZYME COMPLEX, TRANSFERASE, Glycolysis, Phosphoprotein, Thiamine pyrophosphate, Acyltransferase, OXIDOREDUCTASE-TRANSFERASE COMPLEX ;; OXIDOREDUCTASE/TRANSFERASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier48.90
Radius of gyration Rg (electron density) rg_electron48.79
Forward intensity I(0) i01362750000.00
Molecular weight molecular_weight313130.0 kDa
Excluded volume excluded_volume393940 ų
Envelope volume envelope_volume500090 ų
Hydration-shell volume shell_volume84029 ų
Envelope diameter envelope_diameter180.4
Shell Rg shell_rg53.57
Envelope Rg envelope_rg48.63
Shape Rg shape_rg48.77
Total Rg total_rg49.00
Total atoms total_atoms22073
Residues n_residues2830
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 dmax167.7
Rg (real space) rg_real49.09
Rg uncertainty (real space) rg_real_error1.66
I(0) (real space) i0_real1.3630e+09
I(0) uncertainty (real space) i0_real_error2.4640e+07
Rg (reciprocal space) rg_reciprocal48.91
I(0) (reciprocal space) i0_reciprocal1362000000.0000
Solution quality estimate total_estimate0.8635
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary47.1
Skewness Skewness skewness0.415
Kurtosis Kurtosis kurtosis-0.382
Angular range angular_range— – 0.1600 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha288500000.0000
Real-space data points n_real_points33
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.821; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.975; Smooth: 0.782

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (7)

7. Fold Classification (SCOP + CATH) 26 domains

SCOP 2.08 (14 domains)

Domain ID domain_idd3dufa_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.36 — Thiamin diphosphate-binding fold (THDP-binding)
Superfamily Superfamily superfamilyc.36.1 — Thiamin diphosphate-binding fold (THDP-binding)
Family Family familyc.36.1.11 — Branched-chain alpha-keto acid dehydrogenase PP module
Domain ID domain_idd3dufb1
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.36 — Thiamin diphosphate-binding fold (THDP-binding)
Superfamily Superfamily superfamilyc.36.1 — Thiamin diphosphate-binding fold (THDP-binding)
Family Family familyc.36.1.0 — automated matches
Domain ID domain_idd3dufb2
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.48 — TK C-terminal domain-like
Superfamily Superfamily superfamilyc.48.1 — TK C-terminal domain-like
Family Family familyc.48.1.0 — automated matches
Domain ID domain_idd3dufc_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.36 — Thiamin diphosphate-binding fold (THDP-binding)
Superfamily Superfamily superfamilyc.36.1 — Thiamin diphosphate-binding fold (THDP-binding)
Family Family familyc.36.1.11 — Branched-chain alpha-keto acid dehydrogenase PP module
Domain ID domain_idd3dufd1
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.36 — Thiamin diphosphate-binding fold (THDP-binding)
Superfamily Superfamily superfamilyc.36.1 — Thiamin diphosphate-binding fold (THDP-binding)
Family Family familyc.36.1.0 — automated matches
Domain ID domain_idd3dufd2
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.48 — TK C-terminal domain-like
Superfamily Superfamily superfamilyc.48.1 — TK C-terminal domain-like
Family Family familyc.48.1.0 — automated matches
Domain ID domain_idd3dufe_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.36 — Thiamin diphosphate-binding fold (THDP-binding)
Superfamily Superfamily superfamilyc.36.1 — Thiamin diphosphate-binding fold (THDP-binding)
Family Family familyc.36.1.11 — Branched-chain alpha-keto acid dehydrogenase PP module
Domain ID domain_idd3duff1
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.36 — Thiamin diphosphate-binding fold (THDP-binding)
Superfamily Superfamily superfamilyc.36.1 — Thiamin diphosphate-binding fold (THDP-binding)
Family Family familyc.36.1.0 — automated matches
Domain ID domain_idd3duff2
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.48 — TK C-terminal domain-like
Superfamily Superfamily superfamilyc.48.1 — TK C-terminal domain-like
Family Family familyc.48.1.0 — automated matches
Domain ID domain_idd3dufg_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.36 — Thiamin diphosphate-binding fold (THDP-binding)
Superfamily Superfamily superfamilyc.36.1 — Thiamin diphosphate-binding fold (THDP-binding)
Family Family familyc.36.1.11 — Branched-chain alpha-keto acid dehydrogenase PP module
Domain ID domain_idd3dufh1
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.36 — Thiamin diphosphate-binding fold (THDP-binding)
Superfamily Superfamily superfamilyc.36.1 — Thiamin diphosphate-binding fold (THDP-binding)
Family Family familyc.36.1.0 — automated matches
Domain ID domain_idd3dufh2
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.48 — TK C-terminal domain-like
Superfamily Superfamily superfamilyc.48.1 — TK C-terminal domain-like
Family Family familyc.48.1.0 — automated matches
Domain ID domain_idd3dufi_
Class classa — All alpha proteins
Fold Fold folda.9 — Peripheral subunit-binding domain of 2-oxo acid dehydrogenase complex
Superfamily Superfamily superfamilya.9.1 — Peripheral subunit-binding domain of 2-oxo acid dehydrogenase complex
Family Family familya.9.1.0 — automated matches
Domain ID domain_idd3dufj_
Class classa — All alpha proteins
Fold Fold folda.9 — Peripheral subunit-binding domain of 2-oxo acid dehydrogenase complex
Superfamily Superfamily superfamilya.9.1 — Peripheral subunit-binding domain of 2-oxo acid dehydrogenase complex
Family Family familya.9.1.0 — automated matches

CATH v4.4 (12 domains)

Domain ID domain_id3dufA00
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily970 — Thiamin diphosphate (ThDP)-binding fold, Pyr/PP domains
Domain ID domain_id3dufB01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily970 — Thiamin diphosphate (ThDP)-binding fold, Pyr/PP domains
Domain ID domain_id3dufB02
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily920
Domain ID domain_id3dufC00
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily970 — Thiamin diphosphate (ThDP)-binding fold, Pyr/PP domains
Domain ID domain_id3dufD01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily970 — Thiamin diphosphate (ThDP)-binding fold, Pyr/PP domains
Domain ID domain_id3dufD02
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily920
Domain ID domain_id3dufE00
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily970 — Thiamin diphosphate (ThDP)-binding fold, Pyr/PP domains
Domain ID domain_id3dufF01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily970 — Thiamin diphosphate (ThDP)-binding fold, Pyr/PP domains
Domain ID domain_id3dufF02
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily920
Domain ID domain_id3dufG00
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily970 — Thiamin diphosphate (ThDP)-binding fold, Pyr/PP domains
Domain ID domain_id3dufH01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily970 — Thiamin diphosphate (ThDP)-binding fold, Pyr/PP domains
Domain ID domain_id3dufH02
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily920

8. Citations (1)

9. Files and Curves (10)