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1t2t

Crystal structure of the DNA-binding domain of intron endonuclease I-TevI with operator site

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

Intron-associated endonuclease 1

Enterobacteria phage T4

UniProt P13299

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(*TP*TP*TP*GP*TP*AP*GP*GP*AP*CP*TP*GP*CP*CP*CP*TP*TP*TP*AP*AP*T)-3' × 1 5'-D(*AP*AP*TP*TP*AP*AP*AP*GP*GP*GP*CP*AP*GP*TP*CP*CP*TP*AP*CP*AP*A)-3' × 1 ZINC ION × 1 water × 3 Consistent with all polymers

Other States of the Same Protein in the Database

Monomer
1mk0

1 assemblies

Homodimer
1ln0

1 assemblies

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
1i3j 1t2t

2 assemblies

View Construct and Data Evidence
UniProt name TEV1_BPT4
Isoform —
PDB entities 3
Chains and sequence ranges Author chain A； PDBConstruct 1–116； UniProt 130–245

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_id1t2t
Deposition date deposition_date2004-04-22
Structure title titleCrystal structure of the DNA-binding domain of intron endonuclease I-TevI with operator site
Keywords keywordsprotein-DNA complex, 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.

1t2t__assembly_1__model_1

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

Download this curve (.dat)

1t2t__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.

1t2t__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）22.58 Å
Rg (electron density)22.98 Å
Total Rg23.49 Å
Atom count1625
Residues138
Excluded volume26236 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 1t2t__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) 1 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd1t2ta_
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.285 — DNA-binding domain of intron-encoded endonucleases
Superfamily Superfamily superfamilyd.285.1 — DNA-binding domain of intron-encoded endonucleases
Family Family familyd.285.1.1 — DNA-binding domain of intron-encoded endonucleases
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7. Citations (1)