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1ebu

HOMOSERINE DEHYDROGENASE COMPLEX WITH NAD ANALOGUE AND L-HOMOSERINE

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

HOMOSERINE DEHYDROGENASE

Saccharomyces cerevisiae

UniProt P31116

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein homooligomer Homooligomer Protein 2 SODIUM ION × 2 water × 2 Consistent with protein count
2 Protein homooligomer Homooligomer Protein 2 SODIUM ION × 2 3-AMINOMETHYL-PYRIDINIUM-ADENINE-DINUCLEOTIDE × 1 L-HOMOSERINE × 1 water × 2 Consistent with protein count

Other States of the Same Protein in the Database

Monomer

None

Homodimer
1ebf 1ebu 1ebu 1q7g 1tve

5 assemblies

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex

None

View Construct and Data Evidence
UniProt name DHOM_YEAST
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–358； UniProt 2–359 Author chain B； PDBConstruct 1–358； UniProt 2–359 Author chain C； PDBConstruct 1–358； UniProt 2–359 Author chain D； PDBConstruct 1–358； UniProt 2–359

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_id1ebu
Deposition date deposition_date2000-01-24
Structure title titleHOMOSERINE DEHYDROGENASE COMPLEX WITH NAD ANALOGUE AND L-HOMOSERINE
Keywords keywordshomoserine, dehydrogenase, dinucleotide, ternary, analogue, OXIDOREDUCTASE; 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.

1ebu__assembly_1__model_1

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

Download this curve (.dat)

1ebu__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.

1ebu__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）28.01 Å
Rg (electron density)26.97 Å
Total Rg27.87 Å
Atom count5422
Residues716
Excluded volume97885 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 1ebu__assembly_1__model_1 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
2 1 1ebu__assembly_2__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 (5)

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6. Fold Classification (SCOP + CATH) 16 domains

SCOP 2.08 (8 domains)

Domain ID domain_idd1ebua1
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.2.1.3 — Glyceraldehyde-3-phosphate dehydrogenase-like, N-terminal domain
Domain ID domain_idd1ebua2
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.81 — FwdE/GAPDH domain-like
Superfamily Superfamily superfamilyd.81.1 — Glyceraldehyde-3-phosphate dehydrogenase-like, C-terminal domain
Family Family familyd.81.1.2 — Homoserine dehydrogenase-like
Domain ID domain_idd1ebub1
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.2.1.3 — Glyceraldehyde-3-phosphate dehydrogenase-like, N-terminal domain
Domain ID domain_idd1ebub2
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.81 — FwdE/GAPDH domain-like
Superfamily Superfamily superfamilyd.81.1 — Glyceraldehyde-3-phosphate dehydrogenase-like, C-terminal domain
Family Family familyd.81.1.2 — Homoserine dehydrogenase-like
Domain ID domain_idd1ebuc1
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.2.1.3 — Glyceraldehyde-3-phosphate dehydrogenase-like, N-terminal domain
Domain ID domain_idd1ebuc2
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.81 — FwdE/GAPDH domain-like
Superfamily Superfamily superfamilyd.81.1 — Glyceraldehyde-3-phosphate dehydrogenase-like, C-terminal domain
Family Family familyd.81.1.2 — Homoserine dehydrogenase-like
Domain ID domain_idd1ebud1
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.2.1.3 — Glyceraldehyde-3-phosphate dehydrogenase-like, N-terminal domain
Domain ID domain_idd1ebud2
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.81 — FwdE/GAPDH domain-like
Superfamily Superfamily superfamilyd.81.1 — Glyceraldehyde-3-phosphate dehydrogenase-like, C-terminal domain
Family Family familyd.81.1.2 — Homoserine dehydrogenase-like

CATH v4.4 (8 domains)

Domain ID domain_id1ebuA01
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_id1ebuA02
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology360 — Dihydrodipicolinate Reductase; domain 2
Homologous superfamily homologous superfamily10 — Dihydrodipicolinate Reductase; domain 2
Domain ID domain_id1ebuB01
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_id1ebuB02
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology360 — Dihydrodipicolinate Reductase; domain 2
Homologous superfamily homologous superfamily10 — Dihydrodipicolinate Reductase; domain 2
Domain ID domain_id1ebuC01
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_id1ebuC02
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology360 — Dihydrodipicolinate Reductase; domain 2
Homologous superfamily homologous superfamily10 — Dihydrodipicolinate Reductase; domain 2
Domain ID domain_id1ebuD01
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_id1ebuD02
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology360 — Dihydrodipicolinate Reductase; domain 2
Homologous superfamily homologous superfamily10 — Dihydrodipicolinate Reductase; domain 2
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7. Citations (2)