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3ool

I-SceI complexed with C/G+4 DNA substrate

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

Intron encoded endonuclease I-SceI

Saccharomyces cerevisiae

UniProt P03882

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(*CP*AP*CP*GP*CP*TP*AP*GP*GP*GP*AP*TP*AP*AP*CP*CP*GP*GP*GP*TP*AP*AP*TP*AP*C)-3' × 1 5'-D(*GP*GP*TP*AP*TP*TP*AP*CP*CP*CP*GP*GP*TP*TP*AP*TP*CP*CP*CP*TP*AP*GP*CP*GP*T)-3' × 1 CALCIUM ION × 3 water × 3 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
1r7m 1r7m 3c0w 3c0x 3ool 3oor 5a0m 5a0m

8 assemblies

View Construct and Data Evidence
UniProt name SCE1_YEAST
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 3–237； UniProt 1–235

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_id3ool
Deposition date deposition_date2010-08-31
Structure title titleI-SceI complexed with C/G+4 DNA substrate
Keywords keywordshoming endonuclease, intron homing, LAGLIDADG, 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.

3ool__assembly_1__model_1

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

Download this curve (.dat)

3ool__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.

3ool__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）23.29 Å
Rg (electron density)21.96 Å
Total Rg22.83 Å
Atom count2841
Residues271
Excluded volume48000 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 3ool__assembly_1__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 (5)

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6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd3oola1
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.95 — Homing endonuclease-like
Superfamily Superfamily superfamilyd.95.2 — Homing endonucleases
Family Family familyd.95.2.1 — Group I mobile intron endonuclease
Domain ID domain_idd3oola2
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.95 — Homing endonuclease-like
Superfamily Superfamily superfamilyd.95.2 — Homing endonucleases
Family Family familyd.95.2.1 — Group I mobile intron endonuclease

CATH v4.4 (2 domains)

Domain ID domain_id3oolA01
Class class3 — Alpha Beta
Architecture architecture10 — Roll
Topology topology28 — Endonuclease I-creI
Homologous superfamily homologous superfamily10 — Homing endonucleases
Domain ID domain_id3oolA02
Class class3 — Alpha Beta
Architecture architecture10 — Roll
Topology topology28 — Endonuclease I-creI
Homologous superfamily homologous superfamily10 — Homing endonucleases
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7. Citations (1)