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3u3w

Crystal Structure of Bacillus thuringiensis PlcR in complex with the peptide PapR7 and DNA

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

Transcriptional activator PlcR protein

Bacillus thuringiensis

UniProt Q45782

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–DNA Heteromer Protein 4 DNA 2 C-terminus heptapeptide from PapR protein × 2 （B7IR02） 5'-D(P*CP*TP*AP*TP*GP*CP*AP*AP*TP*AP*TP*TP*TP*CP*AP*TP*AP*T)-3' × 1 5'-D(P*AP*TP*AP*TP*GP*AP*AP*AP*TP*AP*TP*TP*GP*CP*AP*TP*AP*G)-3' × 1 CALCIUM ION × 2 water × 6 Consistent with all polymers

Other States of the Same Protein in the Database

Monomer

None

Homodimer
4fsc 4fsc

2 assemblies

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
2qfc 3u3w

2 assemblies

View Construct and Data Evidence
UniProt name Q45782_BACTU
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–285； UniProt 1–285 Author chain B； PDBConstruct 1–285； UniProt 1–285

C-terminus heptapeptide from PapR protein

OrganismNot specified

UniProt B7IR02

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–DNA Heteromer Protein 4 DNA 2 Transcriptional activator PlcR protein × 2 （Q45782） 5'-D(P*CP*TP*AP*TP*GP*CP*AP*AP*TP*AP*TP*TP*TP*CP*AP*TP*AP*T)-3' × 1 5'-D(P*AP*TP*AP*TP*GP*AP*AP*AP*TP*AP*TP*TP*GP*CP*AP*TP*AP*G)-3' × 1 CALCIUM ION × 2 water × 6 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
3u3w

1 assemblies

View Construct and Data Evidence
UniProt name B7IR02_BACC2
Isoform —
PDB entities 2
Chains and sequence ranges Author chain P； PDBConstruct 1–7； UniProt 42–48 Author chain Q； PDBConstruct 1–7； UniProt 42–48

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_id3u3w
Deposition date deposition_date2011-10-06
Structure title titleCrystal Structure of Bacillus thuringiensis PlcR in complex with the peptide PapR7 and DNA
Keywords keywords;ternary complex, PlcR-PAPR7-DNA, HTH DNA-binding domain, Quorum Sensing, HTH_3 (Helix-turn-helix) domain, TPR_1 (tetratricopeptide repeats), Pleiotropic regulator, TRANSCRIPTION ACTIVATOR-DNA complex ;; TRANSCRIPTION ACTIVATOR/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.

3u3w__assembly_1__model_1

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

Download this curve (.dat)

3u3w__assembly_1__model_1 | I(q)

10-2 10-1 106 107 108 q (1/Angstrom) I(q)
100 plotted points; both axes use logarithmic scales.

3u3w__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）30.22 Å
Rg (electron density)28.41 Å
Total Rg29.25 Å
Atom count5562
Residues610
Excluded volume97755 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 3u3w__assembly_1__model_1 hexameric （6） 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 (6)

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6. Fold Classification (SCOP + CATH) 4 domains

CATH v4.4 (4 domains)

Domain ID domain_id3u3wA01
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology260 — 434 Repressor (Amino-terminal Domain)
Homologous superfamily homologous superfamily40 — lambda repressor-like DNA-binding domains
Domain ID domain_id3u3wA02
Class class1 — Mainly Alpha
Architecture architecture25 — Alpha Horseshoe
Topology topology40 — Serine Threonine Protein Phosphatase 5, Tetratricopeptide repeat
Homologous superfamily homologous superfamily10 — Tetratricopeptide repeat domain
Domain ID domain_id3u3wB01
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology260 — 434 Repressor (Amino-terminal Domain)
Homologous superfamily homologous superfamily40 — lambda repressor-like DNA-binding domains
Domain ID domain_id3u3wB02
Class class1 — Mainly Alpha
Architecture architecture25 — Alpha Horseshoe
Topology topology40 — Serine Threonine Protein Phosphatase 5, Tetratricopeptide repeat
Homologous superfamily homologous superfamily10 — Tetratricopeptide repeat domain
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7. Citations (1)