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3zi5

Crystal STRUCTURE OF RESTRICTION ENDONUCLEASE BFII C-TERMINAL RECOGNITION DOMAIN IN COMPLEX WITH COGNATE DNA

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

RESTRICTION ENDONUCLEASE

BACILLUS FIRMUS

UniProt Q9F4C9

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–DNA Monomer Protein 1 DNA 2 5'-D(*AP*GP*CP*AP*CP*TP*GP*GP*GP*TP*CP*GP)-3' × 1 5'-D(*CP*GP*AP*CP*CP*CP*AP*GP*TP*GP*CP*TP)-3' × 1 water × 3 Consistent with all polymers
2 Protein–DNA Monomer Protein 1 DNA 2 5'-D(*AP*GP*CP*AP*CP*TP*GP*GP*GP*TP*CP*GP)-3' × 1 5'-D(*CP*GP*AP*CP*CP*CP*AP*GP*TP*GP*CP*TP)-3' × 1 water × 2 Consistent with all polymers

Other States of the Same Protein in the Database

Monomer

None

Homodimer
2c1l

1 assemblies

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
3zi5 3zi5

2 assemblies

View Construct and Data Evidence
UniProt name Q9F4C9_BACFI
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–166； UniProt 193–358 Author chain D； PDBConstruct 1–166； UniProt 193–358

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_id3zi5
Deposition date deposition_date2013-01-03
Structure title titleCrystal STRUCTURE OF RESTRICTION ENDONUCLEASE BFII C-TERMINAL RECOGNITION DOMAIN IN COMPLEX WITH COGNATE DNA
Keywords keywordsHYDROLASE-DNA COMPLEX, DNA-BINDING PSEUDOBARREL FOLD, DNA RECOGNITION; 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.

3zi5__assembly_1__model_1

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

Download this curve (.dat)

3zi5__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.

3zi5__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）17.96 Å
Rg (electron density)16.84 Å
Total Rg17.79 Å
Atom count1807
Residues190
Excluded volume30339 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 3zi5__assembly_1__model_1 trimeric （3） Success 4.1.3-1-20251215 (887e7ef) View Download
2 1 3zi5__assembly_2__model_1 trimeric （3） 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_id3zi5A00
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology330 — At1g16640 B3 domain
Homologous superfamily homologous superfamily30 —
Domain ID domain_id3zi5D00
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology330 — At1g16640 B3 domain
Homologous superfamily homologous superfamily30 —
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7. Citations (2)