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1co0

NMR STUDY OF TRP REPRESSOR-MTR OPERATOR DNA COMPLEX

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

TRP OPERON REPRESSOR

Escherichia coli

UniProt P0A881

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*GP*TP*AP*CP*TP*CP*GP*TP*GP*TP*AP*CP*TP*GP*GP*TP*AP*CP*A)-3' × 1 5'-D(*TP*GP*TP*AP*CP*CP*AP*GP*TP*AP*CP*AP*CP*GP*AP*GP*TP*AP*CP*A)-3' × 1 TRYPTOPHAN × 2 Consistent with all polymers

Other States of the Same Protein in the Database

Monomer

None

Homodimer
1jhg 1mi7 1wrp 1wrs 1wrt 1zt9 1zt9 2oz9 3ssw 3ssx 3wrp 6ejw

26 assemblies; showing the first 12

Homotetramer
1zt9 1zt9 1zt9

3 assemblies

Other homooligomers

None

Heteromeric or nucleic-acid complex
1co0 1rcs 1tro 1tro 1trr 1trr

6 assemblies

View Construct and Data Evidence
UniProt name TRPR_ECOLI
Isoform —
PDB entities 3
Chains and sequence ranges Author chain A； PDBConstruct 1–107； UniProt 1–107 Author chain B； PDBConstruct 1–107； UniProt 1–107

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_id1co0
Deposition date deposition_date1999-05-30
Structure title titleNMR STUDY OF TRP REPRESSOR-MTR OPERATOR DNA COMPLEX
Keywords keywordsTRANSCRIPTION REGULATION, REPRESSOR, DNA-BINDING, TRP, DNA, TRANSCRIPTION; TRANSCRIPTION
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.

1co0__assembly_1__model_10

Assembly 1 · Model 10 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

1co0__assembly_1__model_10 | I(q)

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

1co0__assembly_1__model_10 | 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）22.22 Å
Rg (electron density)21.00 Å
Total Rg21.88 Å
Atom count4723
Residues250
Excluded volume42477 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 1co0__assembly_1__model_1 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 2 1co0__assembly_1__model_2 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 3 1co0__assembly_1__model_3 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 4 1co0__assembly_1__model_4 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 5 1co0__assembly_1__model_5 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 6 1co0__assembly_1__model_6 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 7 1co0__assembly_1__model_7 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 8 1co0__assembly_1__model_8 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 9 1co0__assembly_1__model_9 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 10 1co0__assembly_1__model_10 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 11 1co0__assembly_1__model_11 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 12 1co0__assembly_1__model_12 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 13 1co0__assembly_1__model_13 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 14 1co0__assembly_1__model_14 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
1 15 1co0__assembly_1__model_15 tetrameric （4） 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 (4)

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6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd1co0a_
Class classa — All alpha proteins
Fold Fold folda.4 — DNA/RNA-binding 3-helical bundle
Superfamily Superfamily superfamilya.4.12 — TrpR-like
Family Family familya.4.12.1 — Trp repressor, TrpR
Domain ID domain_idd1co0b_
Class classa — All alpha proteins
Fold Fold folda.4 — DNA/RNA-binding 3-helical bundle
Superfamily Superfamily superfamilya.4.12 — TrpR-like
Family Family familya.4.12.1 — Trp repressor, TrpR

CATH v4.4 (2 domains)

Domain ID domain_id1co0A00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology1270 — Trp Operon Repressor; Chain A
Homologous superfamily homologous superfamily10 — TrpR-like
Domain ID domain_id1co0B00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology1270 — Trp Operon Repressor; Chain A
Homologous superfamily homologous superfamily10 — TrpR-like
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7. Citations (3)