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2ayq

3-ISOPROPYLMALATE DEHYDROGENASE FROM THE MODERATE FACULTATIVE THERMOPHILE, BACILLUS COAGULANS

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

3-ISOPROPYLMALATE DEHYDROGENASE

Bacillus coagulans

UniProt P12010

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein homooligomer Homooligomer Protein 2 water × 2 Consistent with protein count

Other States of the Same Protein in the Database

Monomer

None

Homodimer
1v53 1v5b 1v5b 1v5b 1v5b 2ayq

6 assemblies

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex

None

View Construct and Data Evidence
UniProt name LEU3_BACCO
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–366； UniProt 1–366 Author chain B； PDBConstruct 1–366； UniProt 1–366

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_id2ayq
Deposition date deposition_date1998-02-20
Structure title title3-ISOPROPYLMALATE DEHYDROGENASE FROM THE MODERATE FACULTATIVE THERMOPHILE, BACILLUS COAGULANS
Keywords keywordsOXIDOREDUCTASE, 3-ISOPROPYLMALATE DEHYDROGENASE, LEUCINE BIOSYNTHESIS, MODERATE THERMOPHILE; 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.

2ayq__assembly_1__model_1

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

Download this curve (.dat)

2ayq__assembly_1__model_1 | I(q)

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

2ayq__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）28.57 Å
Rg (electron density)27.60 Å
Total Rg28.31 Å
Atom count5310
Residues713
Excluded volume94640 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 2ayq__assembly_1__model_1 dimeric （2） 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 (2)

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6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd2ayqa_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.77 — Isocitrate/Isopropylmalate dehydrogenase-like
Superfamily Superfamily superfamilyc.77.1 — Isocitrate/Isopropylmalate dehydrogenase-like
Family Family familyc.77.1.1 — Dimeric isocitrate & isopropylmalate dehydrogenases
Domain ID domain_idd2ayqb_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.77 — Isocitrate/Isopropylmalate dehydrogenase-like
Superfamily Superfamily superfamilyc.77.1 — Isocitrate/Isopropylmalate dehydrogenase-like
Family Family familyc.77.1.1 — Dimeric isocitrate & isopropylmalate dehydrogenases

CATH v4.4 (2 domains)

Domain ID domain_id2ayqA00
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology718 — Isopropylmalate Dehydrogenase
Homologous superfamily homologous superfamily10 — Isopropylmalate Dehydrogenase
Domain ID domain_id2ayqB00
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology718 — Isopropylmalate Dehydrogenase
Homologous superfamily homologous superfamily10 — Isopropylmalate Dehydrogenase
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7. Citations (3)