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1zvv

Crystal structure of a ccpa-crh-dna complex

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

Glucose-resistance amylase regulator

Bacillus subtilis

UniProt P46828

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 DNA recognition strand CRE × 2 HPr-like protein crh × 2 （O06976） IODIDE ION × 10 water × 6 Consistent with all polymers
2 Protein–DNA Heteromer Protein 4 DNA 2 DNA recognition strand CRE × 2 HPr-like protein crh × 2 （O06976） IODIDE ION × 6 water × 4 Consistent with all polymers

Other States of the Same Protein in the Database

Monomer
2hsg

1 assemblies

Homodimer
1sxg 1sxg 1sxg 1sxh 1sxi 1sxi 1sxi 1sxi 1sxi 1sxi 2jcg

11 assemblies

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
1rzr 1rzr 1zvv 1zvv 2nzu 2nzv 2oen

7 assemblies

View Construct and Data Evidence
UniProt name CCPA_BACME
Isoform —
PDB entities 2
Chains and sequence ranges Author chain A； PDBConstruct 1–332； UniProt 1–332 Author chain B； PDBConstruct 1–332； UniProt 1–332 Author chain G； PDBConstruct 1–332； UniProt 1–332

HPr-like protein crh

Bacillus subtilis

UniProt O06976

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 DNA recognition strand CRE × 2 Glucose-resistance amylase regulator × 2 （P46828） IODIDE ION × 10 water × 6 Consistent with all polymers
2 Protein–DNA Heteromer Protein 4 DNA 2 DNA recognition strand CRE × 2 Glucose-resistance amylase regulator × 2 （P46828） IODIDE ION × 6 water × 4 Consistent with all polymers

Other States of the Same Protein in the Database

Monomer
1k1c

1 assemblies

Homodimer
1mo1 1mo1 1mu4 2ak7 2rlz

5 assemblies

Homotetramer
1mo1 1mu4 2ak7

3 assemblies

Other homooligomers

None

Heteromeric or nucleic-acid complex
1zvv 1zvv

2 assemblies

View Construct and Data Evidence
UniProt name CRH_BACSU
Isoform —
PDB entities 3
Chains and sequence ranges Author chain J； PDBConstruct 1–85； UniProt 1–85 Author chain P； PDBConstruct 1–85； UniProt 1–85 Author chain W； PDBConstruct 1–85； UniProt 1–85

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_id1zvv
Deposition date deposition_date2005-06-02
Structure title titleCrystal structure of a ccpa-crh-dna complex
Keywords keywordsccpa; crh; dna; complex; lacI member, 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.

1zvv__assembly_2__model_1

Assembly 2 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

1zvv__assembly_2__model_1 | I(q)

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

1zvv__assembly_2__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）31.77 Å
Rg (electron density)30.30 Å
Total Rg30.91 Å
Atom count7072
Residues859
Excluded volume124250 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 1zvv__assembly_1__model_1 hexameric （6） Success 4.1.3-1-20251215 (887e7ef) View Download
2 1 1zvv__assembly_2__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 (5)

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6. Fold Classification (SCOP + CATH) 21 domains

SCOP 2.08 (9 domains)

Domain ID domain_idd1zvva1
Class classa — All alpha proteins
Fold Fold folda.35 — lambda repressor-like DNA-binding domains
Superfamily Superfamily superfamilya.35.1 — lambda repressor-like DNA-binding domains
Family Family familya.35.1.5 — GalR/LacI-like bacterial regulator
Domain ID domain_idd1zvva2
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.93 — Periplasmic binding protein-like I
Superfamily Superfamily superfamilyc.93.1 — Periplasmic binding protein-like I
Family Family familyc.93.1.1 — L-arabinose binding protein-like
Domain ID domain_idd1zvvb1
Class classa — All alpha proteins
Fold Fold folda.35 — lambda repressor-like DNA-binding domains
Superfamily Superfamily superfamilya.35.1 — lambda repressor-like DNA-binding domains
Family Family familya.35.1.5 — GalR/LacI-like bacterial regulator
Domain ID domain_idd1zvvb2
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.93 — Periplasmic binding protein-like I
Superfamily Superfamily superfamilyc.93.1 — Periplasmic binding protein-like I
Family Family familyc.93.1.1 — L-arabinose binding protein-like
Domain ID domain_idd1zvvg1
Class classa — All alpha proteins
Fold Fold folda.35 — lambda repressor-like DNA-binding domains
Superfamily Superfamily superfamilya.35.1 — lambda repressor-like DNA-binding domains
Family Family familya.35.1.5 — GalR/LacI-like bacterial regulator
Domain ID domain_idd1zvvg2
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.93 — Periplasmic binding protein-like I
Superfamily Superfamily superfamilyc.93.1 — Periplasmic binding protein-like I
Family Family familyc.93.1.1 — L-arabinose binding protein-like
Domain ID domain_idd1zvvj1
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.94 — HPr-like
Superfamily Superfamily superfamilyd.94.1 — HPr-like
Family Family familyd.94.1.1 — HPr-like
Domain ID domain_idd1zvvp_
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.94 — HPr-like
Superfamily Superfamily superfamilyd.94.1 — HPr-like
Family Family familyd.94.1.1 — HPr-like
Domain ID domain_idd1zvvw_
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.94 — HPr-like
Superfamily Superfamily superfamilyd.94.1 — HPr-like
Family Family familyd.94.1.1 — HPr-like

CATH v4.4 (12 domains)

Domain ID domain_id1zvvA01
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_id1zvvA02
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily2300 — Response regulator
Domain ID domain_id1zvvA03
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily2300 — Response regulator
Domain ID domain_id1zvvB01
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_id1zvvB02
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily2300 — Response regulator
Domain ID domain_id1zvvB03
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily2300 — Response regulator
Domain ID domain_id1zvvG01
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_id1zvvG02
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily2300 — Response regulator
Domain ID domain_id1zvvG03
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily2300 — Response regulator
Domain ID domain_id1zvvJ00
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology1340 — Histidine-containing Protein; Chain: A;
Homologous superfamily homologous superfamily10 — HPr-like
Domain ID domain_id1zvvP00
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology1340 — Histidine-containing Protein; Chain: A;
Homologous superfamily homologous superfamily10 — HPr-like
Domain ID domain_id1zvvW00
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology1340 — Histidine-containing Protein; Chain: A;
Homologous superfamily homologous superfamily10 — HPr-like
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7. Citations (1)