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5h3r

Crystal Structure of mutant MarR C80S from E.coli complexed with operator DNA

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

Multiple antibiotic resistance protein MarR

Escherichia coli

UniProt P27245

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 ;DNA (5'-D(*CP*AP*TP*AP*CP*TP*TP*GP*CP*CP*TP*GP*GP*GP*CP*AP*AP*TP*AP*TP*T)-3') ; × 1 ;DNA (5'-D(*GP*AP*AP*TP*AP*TP*TP*GP*CP*CP*CP*AP*GP*GP*CP*AP*AP*GP*TP*AP*T)-3') ; × 1 water × 4 Consistent with all polymers

Other States of the Same Protein in the Database

Monomer

None

Homodimer
1jgs 3vb2 3vod 3voe 4jba

5 assemblies

Homotetramer
4jba

1 assemblies

Other homooligomers

None

Heteromeric or nucleic-acid complex
5h3r

1 assemblies

View Construct and Data Evidence
UniProt name MARR_ECOLI
Isoform —
PDB entities 3
Chains and sequence ranges Author chain A； PDBConstruct 4–147； UniProt 1–144 Author chain B； PDBConstruct 4–147； UniProt 1–144

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_id5h3r
Deposition date deposition_date2016-10-26
Structure title titleCrystal Structure of mutant MarR C80S from E.coli complexed with operator DNA
Keywords keywordsMarR family protein, HTH motif, protein-DNA complex, Transcription Factor, 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.

5h3r__assembly_1__model_1

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

Download this curve (.dat)

5h3r__assembly_1__model_1 | I(q)

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

5h3r__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）23.24 Å
Rg (electron density)22.25 Å
Total Rg23.03 Å
Atom count3046
Residues323
Excluded volume52300 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 5h3r__assembly_1__model_1 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) 2 domains

CATH v4.4 (2 domains)

Domain ID domain_id5h3rA00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology10 — Arc Repressor Mutant, subunit A
Homologous superfamily homologous superfamily10 — Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain
Domain ID domain_id5h3rB00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology10 — Arc Repressor Mutant, subunit A
Homologous superfamily homologous superfamily10 — Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain
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7. Citations (1)