2pu3

Structural adaptation of endonuclease I from the cold-adapted and halophilic bacterium Vibrio salmonicida

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

Endonuclease I

Vibrio salmonicida

UniProt Q2XSL7

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein monomer Monomer Protein 1 MAGNESIUM ION × 1 CHLORIDE ION × 2 water × 1 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name Q2XSL7_9VIBR
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–211; UniProt 22–232

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_id2pu3
Deposition date deposition_date2007-05-08
Structure title titleStructural adaptation of endonuclease I from the cold-adapted and halophilic bacterium Vibrio salmonicida
Keywords keywordscold adaptation, salt adaptation, psychrophilic enzymes, Endonuclease I, HYDROLASE; HYDROLASE
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.

2pu3__assembly_1__model_1

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

Download this curve (.dat)

2pu3__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.

2pu3__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)17.71 Å
Rg (electron density)16.55 Å
Total Rg17.73 Å
Atom count1707
Residues207
Excluded volume30053 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 2pu3__assembly_1__model_1 monomeric (1) 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) 1 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd2pu3a_
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.4 — His-Me finger endonucleases
Superfamily Superfamily superfamilyd.4.1 — His-Me finger endonucleases
Family Family familyd.4.1.6 — Endonuclease I
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7. Citations (1)