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2hdh

BIOCHEMICAL CHARACTERIZATION AND STRUCTURE DETERMINATION OF HUMAN HEART SHORT CHAIN L-3-HYDROXYACYL COA DEHYDROGENASE PROVIDE INSIGHT INTO CATALYTIC MECHANISM

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

L-3-HYDROXYACYL COA DEHYDROGENASE

Homo sapiens

UniProt Q16836

State in the Current Structure

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

Other States of the Same Protein in the Database

Monomer

None

Homodimer
1f0y 1f12 1f14 1f17 1il0 1lsj 1lso 1m75 1m76 2hdh 3had 3rqs

12 assemblies

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex

None

View Construct and Data Evidence
UniProt name HCDH_HUMAN
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–291； UniProt 24–314 Author chain B； PDBConstruct 1–291； UniProt 24–314

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_id2hdh
Deposition date deposition_date1998-12-04
Structure title titleBIOCHEMICAL CHARACTERIZATION AND STRUCTURE DETERMINATION OF HUMAN HEART SHORT CHAIN L-3-HYDROXYACYL COA DEHYDROGENASE PROVIDE INSIGHT INTO CATALYTIC MECHANISM
Keywords keywordsOXIDOREDUCTASE, BETA OXIDATION, SCHAD, CATALYTIC ACTIVITY: L-3-HYDROXYACYL-COA + NAD(+) = 3-OXOACYL-COA + NADH; 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.

2hdh__assembly_1__model_1

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

Download this curve (.dat)

2hdh__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.

2hdh__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）28.94 Å
Rg (electron density)28.17 Å
Total Rg28.71 Å
Atom count4571
Residues570
Excluded volume82221 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 2hdh__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 (3)

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6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

Domain ID domain_idd2hdha1
Class classa — All alpha proteins
Fold Fold folda.100 — 6-phosphogluconate dehydrogenase C-terminal domain-like
Superfamily Superfamily superfamilya.100.1 — 6-phosphogluconate dehydrogenase C-terminal domain-like
Family Family familya.100.1.3 — HCDH C-domain-like
Domain ID domain_idd2hdha2
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.2 — NAD(P)-binding Rossmann-fold domains
Superfamily Superfamily superfamilyc.2.1 — NAD(P)-binding Rossmann-fold domains
Family Family familyc.2.1.6 — 6-phosphogluconate dehydrogenase-like, N-terminal domain
Domain ID domain_idd2hdhb1
Class classa — All alpha proteins
Fold Fold folda.100 — 6-phosphogluconate dehydrogenase C-terminal domain-like
Superfamily Superfamily superfamilya.100.1 — 6-phosphogluconate dehydrogenase C-terminal domain-like
Family Family familya.100.1.3 — HCDH C-domain-like
Domain ID domain_idd2hdhb2
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.2 — NAD(P)-binding Rossmann-fold domains
Superfamily Superfamily superfamilyc.2.1 — NAD(P)-binding Rossmann-fold domains
Family Family familyc.2.1.6 — 6-phosphogluconate dehydrogenase-like, N-terminal domain

CATH v4.4 (4 domains)

Domain ID domain_id2hdhA01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily720 — NAD(P)-binding Rossmann-like Domain
Domain ID domain_id2hdhA02
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology1040 — N-(1-d-carboxylethyl)-l-norvaline Dehydrogenase; domain 2
Homologous superfamily homologous superfamily10 — N-(1-d-carboxylethyl)-l-norvaline Dehydrogenase; domain 2
Domain ID domain_id2hdhB01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily720 — NAD(P)-binding Rossmann-like Domain
Domain ID domain_id2hdhB02
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology1040 — N-(1-d-carboxylethyl)-l-norvaline Dehydrogenase; domain 2
Homologous superfamily homologous superfamily10 — N-(1-d-carboxylethyl)-l-norvaline Dehydrogenase; domain 2
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7. Citations (2)