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9ant

ANTENNAPEDIA HOMEODOMAIN-DNA COMPLEX

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

ANTENNAPEDIA HOMEODOMAIN

Drosophila melanogaster

UniProt P02833

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 ;DNA (5'-D(*AP*GP*AP*AP*AP*GP*CP*CP*AP*TP*TP*AP*GP*AP*G)-3') ; × 1 ;DNA (5'-D(*TP*CP*TP*CP*TP*AP*AP*TP*GP*GP*CP*TP*TP*TP*C)-3') ; × 1 water × 3 Consistent with all polymers
2 Protein–DNA Monomer Protein 1 DNA 2 ;DNA (5'-D(*AP*GP*AP*AP*AP*GP*CP*CP*AP*TP*TP*AP*GP*AP*G)-3') ; × 1 ;DNA (5'-D(*TP*CP*TP*CP*TP*AP*AP*TP*GP*GP*CP*TP*TP*TP*C)-3') ; × 1 NICKEL (II) ION × 1 water × 3 Consistent with all polymers

Other States of the Same Protein in the Database

Monomer
1hom 1kz0 1kz5 1omq 1san 2hoa

6 assemblies

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
4xic 4xic 4xid 4xid 5jlw 5jlw 5jlx 5jlx 9ant 9ant 9yzt

11 assemblies

View Construct and Data Evidence
UniProt name ANTP_DROME
Isoform —
PDB entities 3
Chains and sequence ranges Author chain A； PDBConstruct 3–62； UniProt 1–60 Author chain B； PDBConstruct 3–62； UniProt 1–60

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_id9ant
Deposition date deposition_date1998-07-02
Structure title titleANTENNAPEDIA HOMEODOMAIN-DNA COMPLEX
Keywords keywordsHOMEODOMAIN, DNA-BINDING PROTEIN, COMPLEX (HOMEODOMAIN-DNA), TRANSCRIPTION-DNA COMPLEX; TRANSCRIPTION/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.

9ant__assembly_1__model_1

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

Download this curve (.dat)

9ant__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.

9ant__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）16.58 Å
Rg (electron density)15.64 Å
Total Rg16.51 Å
Atom count1126
Residues86
Excluded volume18089 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 9ant__assembly_1__model_1 trimeric （3） Success 4.1.3-1-20251215 (887e7ef) View Download
2 1 9ant__assembly_2__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) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd9anta_
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
Domain ID domain_idd9antb_
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 (2 domains)

Domain ID domain_id9antA00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology10 — Arc Repressor Mutant, subunit A
Homologous superfamily homologous superfamily60 — Homeodomain-like
Domain ID domain_id9antB00
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)