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1gm5

Structure of RecG bound to three-way DNA junction

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

RECG

THERMOTOGA MARITIMA

UniProt Q9WY48

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein–DNA Monomer Protein 1 DNA 3 ;DNA (5'-(*CP*AP*GP*CP*TP*CP*CP*AP*TP*GP*AP*TP* CP*AP*TP*TP*GP*GP*CP*A)-3') ; × 1 ;DNA (5'-(*GP*CP*AP*GP*TP*GP*CP*TP*CP*GP*CP*AP* TP*GP*GP*AP*GP*CP*TP*G)-3') ; × 1 ;DNA (5'-(*GP*AP*GP*CP*AP*CP*TP*GP*C)-3') ; × 1 ADENOSINE-5'-DIPHOSPHATE × 1 MAGNESIUM ION × 1 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
1gm5

1 assemblies

View Construct and Data Evidence
UniProt name Q9WY48
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–780； UniProt 1–780

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_id1gm5
Deposition date deposition_date2001-09-11
Structure title titleStructure of RecG bound to three-way DNA junction
Keywords keywordsHELICASE, REPLICATION RESTART; HELICASE
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.

1gm5__assembly_1__model_1

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

Download this curve (.dat)

1gm5__assembly_1__model_1 | I(q)

10-2 10-1 106 107 108 q (1/Angstrom) I(q)
100 plotted points; both axes use logarithmic scales.

1gm5__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）34.65 Å
Rg (electron density)33.99 Å
Total Rg34.49 Å
Atom count6779
Residues770
Excluded volume119050 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 1gm5__assembly_1__model_1 tetrameric （4） 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 (6)

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6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

Domain ID domain_idd1gm5a1
Class classa — All alpha proteins
Fold Fold folda.24 — Four-helical up-and-down bundle
Superfamily Superfamily superfamilya.24.21 — RecG, N-terminal domain
Family Family familya.24.21.1 — RecG, N-terminal domain
Domain ID domain_idd1gm5a2
Class classb — All beta proteins
Fold Fold foldb.40 — OB-fold
Superfamily Superfamily superfamilyb.40.4 — Nucleic acid-binding proteins
Family Family familyb.40.4.9 — RecG 'wedge' domain
Domain ID domain_idd1gm5a3
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.37 — P-loop containing nucleoside triphosphate hydrolases
Superfamily Superfamily superfamilyc.37.1 — P-loop containing nucleoside triphosphate hydrolases
Family Family familyc.37.1.19 — Tandem AAA-ATPase domain
Domain ID domain_idd1gm5a4
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.37 — P-loop containing nucleoside triphosphate hydrolases
Superfamily Superfamily superfamilyc.37.1 — P-loop containing nucleoside triphosphate hydrolases
Family Family familyc.37.1.19 — Tandem AAA-ATPase domain

CATH v4.4 (4 domains)

Domain ID domain_id1gm5A01
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology120 — Four Helix Bundle (Hemerythrin (Met), subunit A)
Homologous superfamily homologous superfamily630 — RecG, N-terminal domain
Domain ID domain_id1gm5A03
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology50 — OB fold (Dihydrolipoamide Acetyltransferase, E2P)
Homologous superfamily homologous superfamily140 — Nucleic acid-binding proteins
Domain ID domain_id1gm5A04
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily300 — P-loop containing nucleotide triphosphate hydrolases
Domain ID domain_id1gm5A05
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily300 — P-loop containing nucleotide triphosphate hydrolases
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7. Citations (1)