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1p7m

SOLUTION STRUCTURE AND BASE PERTURBATION STUDIES REVEAL A NOVEL MODE OF ALKYLATED BASE RECOGNITION BY 3-METHYLADENINE DNA GLYCOSYLASE I

Method: SOLUTION NMR
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1. Protein Identity and Related Structures Protein Identity & Related Structures

DNA-3-methyladenine glycosylase I

Escherichia coli

UniProt P05100

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein monomer Monomer Protein 1 ZINC ION × 1 3-METHYL-3H-PURIN-6-YLAMINE × 1 Consistent with protein count

Other States of the Same Protein in the Database

Monomer
1lmz 1nku 1p7m

3 assemblies

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex

None

View Construct and Data Evidence
UniProt name 3MG1_ECOLI
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–187； UniProt 1–187

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_id1p7m
Deposition date deposition_date2003-05-02
Structure title titleSOLUTION STRUCTURE AND BASE PERTURBATION STUDIES REVEAL A NOVEL MODE OF ALKYLATED BASE RECOGNITION BY 3-METHYLADENINE DNA GLYCOSYLASE I
Keywords keywords3-methyladenine TAG complex nmr, HYDROLASE; HYDROLASE
Experimental Method methodSOLUTION NMR
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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.

1p7m__assembly_1__model_7

Assembly 1 · Model 7 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

1p7m__assembly_1__model_7 | I(q)

10-2 10-1 105 106 q (1/Angstrom) I(q)
100 plotted points; both axes use logarithmic scales.

1p7m__assembly_1__model_7 | 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）18.28 Å
Rg (electron density)17.07 Å
Total Rg18.11 Å
Atom count2940
Residues187
Excluded volume26420 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 1p7m__assembly_1__model_1 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 2 1p7m__assembly_1__model_2 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 3 1p7m__assembly_1__model_3 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 4 1p7m__assembly_1__model_4 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 5 1p7m__assembly_1__model_5 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 6 1p7m__assembly_1__model_6 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 7 1p7m__assembly_1__model_7 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 8 1p7m__assembly_1__model_8 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 9 1p7m__assembly_1__model_9 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 10 1p7m__assembly_1__model_10 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 11 1p7m__assembly_1__model_11 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 12 1p7m__assembly_1__model_12 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 13 1p7m__assembly_1__model_13 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 14 1p7m__assembly_1__model_14 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 15 1p7m__assembly_1__model_15 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 16 1p7m__assembly_1__model_16 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 17 1p7m__assembly_1__model_17 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 18 1p7m__assembly_1__model_18 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 19 1p7m__assembly_1__model_19 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 20 1p7m__assembly_1__model_20 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 21 1p7m__assembly_1__model_21 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 22 1p7m__assembly_1__model_22 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 23 1p7m__assembly_1__model_23 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 24 1p7m__assembly_1__model_24 monomeric （1） Success 4.1.3-1-20251215 (887e7ef) View Download
1 25 1p7m__assembly_1__model_25 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 (3)

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6. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd1p7ma_
Class classa — All alpha proteins
Fold Fold folda.96 — DNA-glycosylase
Superfamily Superfamily superfamilya.96.1 — DNA-glycosylase
Family Family familya.96.1.4 — 3-Methyladenine DNA glycosylase I (Tag)

CATH v4.4 (1 domains)

Domain ID domain_id1p7mA00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology340 — Endonuclease III; domain 1
Homologous superfamily homologous superfamily30 — Hypothetical protein; domain 2
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7. Citations (1)