← Back to search
1nwq

CRYSTAL STRUCTURE OF C/EBPALPHA-DNA COMPLEX

Method: X-RAY DIFFRACTION
▼

1. Protein Identity and Related Structures Protein Identity & Related Structures

CCAAT/enhancer binding protein alpha

Rattus norvegicus

UniProt P05554

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–DNA Homooligomer Protein 2 DNA 2 5'-D(*TP*TP*CP*CP*TP*AP*TP*TP*GP*CP*GP*CP*AP*AP*TP*CP*CP*AP*GP*TP*T)-3' × 1 5'-D(*AP*AP*AP*CP*TP*GP*GP*AP*TP*TP*GP*CP*GP*CP*AP*AP*TP*AP*GP*GP*A)-3' × 1 water × 4 Consistent with all polymers

Other States of the Same Protein in the Database

Monomer

None

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
1nwq

1 assemblies

View Construct and Data Evidence
UniProt name CEBPA_RAT
Isoform —
PDB entities 3
Chains and sequence ranges Author chain A； PDBConstruct 3–62； UniProt 281–340 Author chain C； PDBConstruct 3–62； UniProt 281–340

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.

▼

2. Structure Basics 2. Structure Basics

Entry ID entry_id1nwq
Deposition date deposition_date2003-02-06
Structure title titleCRYSTAL STRUCTURE OF C/EBPALPHA-DNA COMPLEX
Keywords keywordsBASIC LEUCINE ZIPPER, PROTEIN-DNA COMPLEX, TRANSCRIPTION-DNA COMPLEX; TRANSCRIPTION/DNA
Experimental Method methodX-RAY DIFFRACTION
▼

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.

1nwq__assembly_1__model_1

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

Download this curve (.dat)

1nwq__assembly_1__model_1 | I(q)

10-2 10-1 105 106 107 q (1/Angstrom) I(q)
100 plotted points; both axes use logarithmic scales.

1nwq__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）25.75 Å
Rg (electron density)26.42 Å
Total Rg26.67 Å
Atom count1875
Residues162
Excluded volume30174 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 1nwq__assembly_1__model_1 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
▶

4. Crystallography and Experiment 4. Crystallography & Experiment

▶

5. Entities and Polymers Entities & Polymers (4)

▼

6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd1nwqa_
Class classh — Coiled coil proteins
Fold Fold foldh.1 — Parallel coiled-coil
Superfamily Superfamily superfamilyh.1.3 — Leucine zipper domain
Family Family familyh.1.3.1 — Leucine zipper domain
Domain ID domain_idd1nwqc_
Class classh — Coiled coil proteins
Fold Fold foldh.1 — Parallel coiled-coil
Superfamily Superfamily superfamilyh.1.3 — Leucine zipper domain
Family Family familyh.1.3.1 — Leucine zipper domain

CATH v4.4 (2 domains)

Domain ID domain_id1nwqA00
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology5 — Single alpha-helices involved in coiled-coils or other helix-helix interfaces
Homologous superfamily homologous superfamily170 —
Domain ID domain_id1nwqC00
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology5 — Single alpha-helices involved in coiled-coils or other helix-helix interfaces
Homologous superfamily homologous superfamily170 —
▶

7. Citations (1)