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1jql

Mechanism of Processivity Clamp Opening by the Delta Subunit Wrench of the Clamp Loader Complex of E. coli DNA Polymerase III: Structure of beta-delta (1-140)

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

DNA Polymerase III, BETA CHAIN

Escherichia coli

UniProt P0A988

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 2 DNA Polymerase III, DELTA SUBUNIT × 1 （P28630） Consistent with protein count

Other States of the Same Protein in the Database

Monomer

None

Homodimer
1mmi 2pol 2xur 3d1g 3f1v 3pwe 3qsb 4k3k 4k3l 4k3s 4mjp 4mjq

20 assemblies; showing the first 12

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
1jqj 1jqj 1jqj 1jqj 1jqj 1jql 3bep 3d1e 3d1f 3q4j 3q4j 3q4j

41 assemblies; showing the first 12

View Construct and Data Evidence
UniProt name DPO3B_ECOLI
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–366； UniProt 1–366

DNA Polymerase III, DELTA SUBUNIT

Escherichia coli

UniProt P28630

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 2 DNA Polymerase III, BETA CHAIN × 1 （P0A988） Consistent with protein count

Other States of the Same Protein in the Database

Monomer

None

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
1jqj 1jqj 1jqj 1jqj 1jqj 1jql 1jr3 1xxh 1xxh 1xxi 1xxi 3glf

47 assemblies; showing the first 12

View Construct and Data Evidence
UniProt name HOLA_ECOLI
Isoform —
PDB entities 2
Chains and sequence ranges Author chain B； PDBConstruct 1–140； UniProt 1–140

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_id1jql
Deposition date deposition_date2001-08-07
Structure title titleMechanism of Processivity Clamp Opening by the Delta Subunit Wrench of the Clamp Loader Complex of E. coli DNA Polymerase III: Structure of beta-delta (1-140)
Keywords keywordsDNA Polymerase, Processivity Clamp, Clamp Loader, DNA Replication, AAA+ ATPase, TRANSFERASE; TRANSFERASE
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.

1jql__assembly_1__model_1

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

Download this curve (.dat)

1jql__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.

1jql__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）28.79 Å
Rg (electron density)28.00 Å
Total Rg28.64 Å
Atom count3932
Residues506
Excluded volume70002 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 1jql__assembly_1__model_1 dimeric （2） 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 (2)

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6. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

Domain ID domain_idd1jqla1
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.131 — DNA clamp
Superfamily Superfamily superfamilyd.131.1 — DNA clamp
Family Family familyd.131.1.1 — DNA polymerase III, beta subunit
Domain ID domain_idd1jqla2
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.131 — DNA clamp
Superfamily Superfamily superfamilyd.131.1 — DNA clamp
Family Family familyd.131.1.1 — DNA polymerase III, beta subunit
Domain ID domain_idd1jqla3
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.131 — DNA clamp
Superfamily Superfamily superfamilyd.131.1 — DNA clamp
Family Family familyd.131.1.1 — DNA polymerase III, beta subunit
Domain ID domain_idd1jqlb_
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.37.1.20 — Extended AAA-ATPase domain

CATH v4.4 (4 domains)

Domain ID domain_id1jqlA01
Class class3 — Alpha Beta
Architecture architecture10 — Roll
Topology topology150 — DNA Polymerase III; Chain A, domain 2
Homologous superfamily homologous superfamily10 — DNA Polymerase III, subunit A, domain 2
Domain ID domain_id1jqlA02
Class class3 — Alpha Beta
Architecture architecture10 — Roll
Topology topology150 — DNA Polymerase III; Chain A, domain 2
Homologous superfamily homologous superfamily10 — DNA Polymerase III, subunit A, domain 2
Domain ID domain_id1jqlA03
Class class3 — Alpha Beta
Architecture architecture10 — Roll
Topology topology150 — DNA Polymerase III; Chain A, domain 2
Homologous superfamily homologous superfamily10 — DNA Polymerase III, subunit A, domain 2
Domain ID domain_id1jqlB00
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)