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1f0o

PVUII ENDONUCLEASE/COGNATE DNA COMPLEX (GLUTARALDEHYDE-CROSSLINKED CRYSTAL) AT PH 7.5 WITH TWO CALCIUM IONS AT EACH ACTIVE SITE

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

TYPE II RESTRICTION ENZYME PVUII

Proteus vulgaris

UniProt P23657

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*AP*CP*CP*AP*GP*CP*TP*GP*GP*TP*C-3') × 2 CALCIUM ION × 4 water × 4 Consistent with all polymers

Other States of the Same Protein in the Database

Monomer
3ksk 3ksk

2 assemblies

Homodimer
1h56 1k0z 1ni0 1ni0 1pvu

5 assemblies

Homotetramer
3ksk

1 assemblies

Other homooligomers

None

Heteromeric or nucleic-acid complex
1eyu 1f0o 1pvi 2pvi 3pvi

5 assemblies

View Construct and Data Evidence
UniProt name T2P2_PROVU
Isoform —
PDB entities 2
Chains and sequence ranges Author chain A； PDBConstruct 1–157； UniProt 1–157 Author chain B； PDBConstruct 1–157； UniProt 1–157

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_id1f0o
Deposition date deposition_date2000-05-16
Structure title titlePVUII ENDONUCLEASE/COGNATE DNA COMPLEX (GLUTARALDEHYDE-CROSSLINKED CRYSTAL) AT PH 7.5 WITH TWO CALCIUM IONS AT EACH ACTIVE SITE
Keywords keywordsPROTEIN-DNA COMPLEX, ENDONUCLEASE TYPE II, RESTRICTION ENZYME, Catalytic Metal visualization, hydrolase-DNA COMPLEX; hydrolase/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.

1f0o__assembly_1__model_1

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

Download this curve (.dat)

1f0o__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.

1f0o__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）20.79 Å
Rg (electron density)20.26 Å
Total Rg20.96 Å
Atom count2964
Residues332
Excluded volume51287 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 1f0o__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) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd1f0oa_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.52 — Restriction endonuclease-like
Superfamily Superfamily superfamilyc.52.1 — Restriction endonuclease-like
Family Family familyc.52.1.6 — Restriction endonuclease PvuII
Domain ID domain_idd1f0ob_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.52 — Restriction endonuclease-like
Superfamily Superfamily superfamilyc.52.1 — Restriction endonuclease-like
Family Family familyc.52.1.6 — Restriction endonuclease PvuII

CATH v4.4 (2 domains)

Domain ID domain_id1f0oA00
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology210 — PvuII Endonuclease; Chain A
Homologous superfamily homologous superfamily10 — PVUII Endonuclease, subunit A
Domain ID domain_id1f0oB00
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology210 — PvuII Endonuclease; Chain A
Homologous superfamily homologous superfamily10 — PVUII Endonuclease, subunit A
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7. Citations (3)