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2lfh

Solution NMR Structure of the Helix-loop-Helix Domain of Human ID3 Protein, Northeast Structural Genomics Consortium Target HR3111A

Method: SOLUTION NMR
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1. Protein Identity and Related Structures Protein Identity & Related Structures

DNA-binding protein inhibitor ID-3

Homo sapiens

UniProt Q02535

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein homooligomer Homooligomer Protein 2 No other associated polymer Consistent with protein count

Other States of the Same Protein in the Database

Monomer

None

Homodimer
2lfh

1 assemblies

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex

None

View Construct and Data Evidence
UniProt name ID3_HUMAN
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 14–68； UniProt 29–83 Author chain B； PDBConstruct 14–68； UniProt 29–83

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_id2lfh
Deposition date deposition_date2011-06-30
Structure title titleSolution NMR Structure of the Helix-loop-Helix Domain of Human ID3 Protein, Northeast Structural Genomics Consortium Target HR3111A
Keywords keywords;Structural Genomics, NORTHEAST STRUCTURAL GENOMICS CONSORTIUM (NESG), PSI-Biology, Protein Structure Initiative, Helix-loop-helix, DNA binding protein inhibitor ;; DNA binding protein inhibitor
Experimental Method methodSOLUTION NMR
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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.

2lfh__assembly_1__model_19

Assembly 1 · Model 19 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

2lfh__assembly_1__model_19 | I(q)

10-2 10-1 105 106 q (1/Angstrom) I(q)
100 plotted points; both axes use logarithmic scales.

2lfh__assembly_1__model_19 | 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）19.60 Å
Rg (electron density)18.48 Å
Total Rg19.23 Å
Atom count2118
Residues136
Excluded volume18754 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 2lfh__assembly_1__model_1 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 2 2lfh__assembly_1__model_2 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 3 2lfh__assembly_1__model_3 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 4 2lfh__assembly_1__model_4 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 5 2lfh__assembly_1__model_5 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 6 2lfh__assembly_1__model_6 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 7 2lfh__assembly_1__model_7 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 8 2lfh__assembly_1__model_8 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 9 2lfh__assembly_1__model_9 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 10 2lfh__assembly_1__model_10 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 11 2lfh__assembly_1__model_11 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 12 2lfh__assembly_1__model_12 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 13 2lfh__assembly_1__model_13 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 14 2lfh__assembly_1__model_14 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 15 2lfh__assembly_1__model_15 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 16 2lfh__assembly_1__model_16 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 17 2lfh__assembly_1__model_17 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 18 2lfh__assembly_1__model_18 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 19 2lfh__assembly_1__model_19 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
1 20 2lfh__assembly_1__model_20 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 (1)

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6. Fold Classification (SCOP + CATH) 2 domains

CATH v4.4 (2 domains)

Domain ID domain_id2lfhA00
Class class4 — Few Secondary Structures
Architecture architecture10 — Irregular
Topology topology280 — MYOD Basic-Helix-Loop-Helix Domain, subunit B
Homologous superfamily homologous superfamily10 — Helix-loop-helix DNA-binding domain
Domain ID domain_id2lfhB00
Class class4 — Few Secondary Structures
Architecture architecture10 — Irregular
Topology topology280 — MYOD Basic-Helix-Loop-Helix Domain, subunit B
Homologous superfamily homologous superfamily10 — Helix-loop-helix DNA-binding domain
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7. Citations (1)