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1w85

The crystal structure of pyruvate dehydrogenase E1 bound to the peripheral subunit binding domain of E2

Method: X-RAY DIFFRACTION
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1. Protein Identity and Related Structures Protein Identity & Related Structures

PYRUVATE DEHYDROGENASE E1 COMPONENT, ALPHA SUBUNIT

GEOBACILLUS STEAROTHERMOPHILUS

UniProt P21873

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 5 PYRUVATE DEHYDROGENASE E1 COMPONENT, BETA SUBUNIT × 2 （P21874） DIHYDROLIPOYLLYSINE-RESIDUE ACETYLTRANSFERASE COMPONENT OF PYRUVATE × 1 （P11961） MAGNESIUM ION × 3 DI(HYDROXYETHYL)ETHER × 2 THIAMINE DIPHOSPHATE × 2 POTASSIUM ION × 2 water × 5 Consistent with protein count
2 Protein heterocomplex Heteromer Protein 5 PYRUVATE DEHYDROGENASE E1 COMPONENT, BETA SUBUNIT × 2 （P21874） DIHYDROLIPOYLLYSINE-RESIDUE ACETYLTRANSFERASE COMPONENT OF PYRUVATE × 1 （P11961） MAGNESIUM ION × 3 DI(HYDROXYETHYL)ETHER × 1 THIAMINE DIPHOSPHATE × 2 POTASSIUM ION × 2 water × 5 Consistent with protein count

Other States of the Same Protein in the Database

Monomer

None

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
1w85 1w85 1w88 1w88 3duf 3duf 3dv0 3dv0 3dva 3dva

10 assemblies

View Construct and Data Evidence
UniProt name ODPA_BACST
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–368； UniProt 1–368 Author chain C； PDBConstruct 1–368； UniProt 1–368 Author chain E； PDBConstruct 1–368； UniProt 1–368 Author chain G； PDBConstruct 1–368； UniProt 1–368

PYRUVATE DEHYDROGENASE E1 COMPONENT, BETA SUBUNIT

GEOBACILLUS STEAROTHERMOPHILUS

UniProt P21874

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 5 PYRUVATE DEHYDROGENASE E1 COMPONENT, ALPHA SUBUNIT × 2 （P21873） DIHYDROLIPOYLLYSINE-RESIDUE ACETYLTRANSFERASE COMPONENT OF PYRUVATE × 1 （P11961） MAGNESIUM ION × 3 DI(HYDROXYETHYL)ETHER × 2 THIAMINE DIPHOSPHATE × 2 POTASSIUM ION × 2 water × 5 Consistent with protein count
2 Protein heterocomplex Heteromer Protein 5 PYRUVATE DEHYDROGENASE E1 COMPONENT, ALPHA SUBUNIT × 2 （P21873） DIHYDROLIPOYLLYSINE-RESIDUE ACETYLTRANSFERASE COMPONENT OF PYRUVATE × 1 （P11961） MAGNESIUM ION × 3 DI(HYDROXYETHYL)ETHER × 1 THIAMINE DIPHOSPHATE × 2 POTASSIUM ION × 2 water × 5 Consistent with protein count

Other States of the Same Protein in the Database

Monomer

None

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
1w85 1w85 1w88 1w88 3duf 3duf 3dv0 3dv0 3dva 3dva

10 assemblies

View Construct and Data Evidence
UniProt name ODPB_BACST
Isoform —
PDB entities 2
Chains and sequence ranges Author chain B； PDBConstruct 1–324； UniProt 1–324 Author chain D； PDBConstruct 1–324； UniProt 1–324 Author chain F； PDBConstruct 1–324； UniProt 1–324 Author chain H； PDBConstruct 1–324； UniProt 1–324

DIHYDROLIPOYLLYSINE-RESIDUE ACETYLTRANSFERASE COMPONENT OF PYRUVATE

GEOBACILLUS STEAROTHERMOPHILUS

UniProt P11961

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 5 PYRUVATE DEHYDROGENASE E1 COMPONENT, ALPHA SUBUNIT × 2 （P21873） PYRUVATE DEHYDROGENASE E1 COMPONENT, BETA SUBUNIT × 2 （P21874） MAGNESIUM ION × 3 DI(HYDROXYETHYL)ETHER × 2 THIAMINE DIPHOSPHATE × 2 POTASSIUM ION × 2 water × 5 Consistent with protein count
2 Protein heterocomplex Heteromer Protein 5 PYRUVATE DEHYDROGENASE E1 COMPONENT, ALPHA SUBUNIT × 2 （P21873） PYRUVATE DEHYDROGENASE E1 COMPONENT, BETA SUBUNIT × 2 （P21874） MAGNESIUM ION × 3 DI(HYDROXYETHYL)ETHER × 1 THIAMINE DIPHOSPHATE × 2 POTASSIUM ION × 2 water × 5 Consistent with protein count

Other States of the Same Protein in the Database

Monomer
1lab 1lac 1w3d 1w4e 1w4f 1w4g 1w4h 2pdd 2pde

9 assemblies

Homodimer

None

Homotetramer

None

Other homooligomers
1b5s 9ukz

2 assemblies

Heteromeric or nucleic-acid complex
1ebd 1w85 1w85 1w88 1w88 3duf 3duf 3dv0 3dv0 3dva 3dva

11 assemblies

View Construct and Data Evidence
UniProt name ODP2_BACST
Isoform —
PDB entities 3
Chains and sequence ranges Author chain I； PDBConstruct 1–49； UniProt 122–170 Author chain J； PDBConstruct 1–49； UniProt 122–170

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.

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2. Structure Basics 2. Structure Basics

Entry ID entry_id1w85
Deposition date deposition_date2004-09-16
Structure title titleThe crystal structure of pyruvate dehydrogenase E1 bound to the peripheral subunit binding domain of E2
Keywords keywordsPYRUVATE, DEHYDROGENASE, DIHYDROLIPOYL, ACETYL TRANSFERASE, MULTIENZYME COMPLEX, OXIDOREDUCTASE, TRANSFERASE; OXIDOREDUCTASE
Experimental Method methodX-RAY DIFFRACTION
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3. Official assembly/model SAXS Official SAXS Profiles

This page reads only the latest assembly calculations. Every curve maps to an explicit PDB entry, official biological assembly and coordinate model.

1w85__assembly_1__model_1

Assembly 1 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

1w85__assembly_1__model_1 | I(q)

10-2 10-1 106 107 108 q (1/Angstrom) I(q)
100 plotted points; both axes use logarithmic scales.

1w85__assembly_1__model_1 | P(r) · Pending

The new assembly/model P(r) has not been calculated yet This placeholder does not display legacy data r (Angstrom) P(r)
P(r) will be calculated and displayed separately for the same assembly/model.
Rg（Guinier）33.07 Å
Rg (electron density)32.10 Å
Total Rg32.76 Å
Atom count10974
Residues1414
Excluded volume196110 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 1w85__assembly_1__model_1 pentameric （5） Success 4.1.3-1-20251215 (887e7ef) View Download
2 1 1w85__assembly_2__model_1 pentameric （5） Success 4.1.3-1-20251215 (887e7ef) View Download
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4. Crystallography and Experiment 4. Crystallography & Experiment

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5. Entities and Polymers Entities & Polymers (8)

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6. Fold Classification (SCOP + CATH) 27 domains

SCOP 2.08 (14 domains)

Domain ID domain_idd1w85a_
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_idd1w85b1
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.36.1.7 — Branched-chain alpha-keto acid dehydrogenase Pyr module
Domain ID domain_idd1w85b2
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.48.1.2 — Branched-chain alpha-keto acid dehydrogenase beta-subunit, C-terminal-domain
Domain ID domain_idd1w85c_
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_idd1w85d1
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.36.1.7 — Branched-chain alpha-keto acid dehydrogenase Pyr module
Domain ID domain_idd1w85d2
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.48.1.2 — Branched-chain alpha-keto acid dehydrogenase beta-subunit, C-terminal-domain
Domain ID domain_idd1w85e_
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_idd1w85f1
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.36.1.7 — Branched-chain alpha-keto acid dehydrogenase Pyr module
Domain ID domain_idd1w85f2
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.48.1.2 — Branched-chain alpha-keto acid dehydrogenase beta-subunit, C-terminal-domain
Domain ID domain_idd1w85g_
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_idd1w85h1
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.36.1.7 — Branched-chain alpha-keto acid dehydrogenase Pyr module
Domain ID domain_idd1w85h2
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.48.1.2 — Branched-chain alpha-keto acid dehydrogenase beta-subunit, C-terminal-domain
Domain ID domain_idd1w85i_
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.9.1.1 — Peripheral subunit-binding domain of 2-oxo acid dehydrogenase complex
Domain ID domain_idd1w85j_
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.9.1.1 — Peripheral subunit-binding domain of 2-oxo acid dehydrogenase complex

CATH v4.4 (13 domains)

Domain ID domain_id1w85A00
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_id1w85B01
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_id1w85B02
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily920 —
Domain ID domain_id1w85C00
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_id1w85D01
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_id1w85D02
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily920 —
Domain ID domain_id1w85E00
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_id1w85F01
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_id1w85F02
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily920 —
Domain ID domain_id1w85G00
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_id1w85H01
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_id1w85H02
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily920 —
Domain ID domain_id1w85I00
Class class4 — Few Secondary Structures
Architecture architecture10 — Irregular
Topology topology320 — Dihydrolipoamide Transferase
Homologous superfamily homologous superfamily10 — E3-binding domain
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7. Citations (2)