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3lnq

Structure of Aristaless homeodomain in complex with DNA

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

Homeobox protein aristaless

Drosophila melanogaster

UniProt Q06453

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–DNA Monomer Protein 1 DNA 2 5'-D(*GP*GP*GP*TP*TP*TP*AP*AP*TP*TP*AP*GP*GP*G)-3' × 1 5'-D(*CP*CP*CP*TP*AP*AP*TP*TP*AP*AP*AP*CP*CP*C)-3' × 1 ACETATE ION × 1 water × 3 Consistent with all polymers

Other States of the Same Protein in the Database

Monomer
3a02

1 assemblies

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
3a01 3a01 3lnq

3 assemblies

View Construct and Data Evidence
UniProt name AL_DROME
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–58； UniProt 87–144

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_id3lnq
Deposition date deposition_date2010-02-02
Structure title titleStructure of Aristaless homeodomain in complex with DNA
Keywords keywordsHOMEODOMAIN, PROTEIN-DNA COMPLEX, Developmental protein, DNA-binding, Homeobox, Nucleus, Gene Regulation-DNA complex; Gene Regulation/DNA
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.

3lnq__assembly_1__model_1

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

Download this curve (.dat)

3lnq__assembly_1__model_1 | I(q)

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

3lnq__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）16.10 Å
Rg (electron density)15.20 Å
Total Rg16.11 Å
Atom count1083
Residues86
Excluded volume17428 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 3lnq__assembly_1__model_1 trimeric （3） 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) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd3lnqa_
Class classa — All alpha proteins
Fold Fold folda.4 — DNA/RNA-binding 3-helical bundle
Superfamily Superfamily superfamilya.4.1 — Homeodomain-like
Family Family familya.4.1.1 — Homeodomain

CATH v4.4 (1 domains)

Domain ID domain_id3lnqA00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology10 — Arc Repressor Mutant, subunit A
Homologous superfamily homologous superfamily60 — Homeodomain-like
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7. Citations (1)