1a5t

CRYSTAL STRUCTURE OF THE DELTA PRIME SUBUNIT OF THE CLAMP-LOADER COMPLEX OF ESCHERICHIA COLI DNA POLYMERASE III

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

DELTA PRIME

Escherichia coli K12

UniProt P28631

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein homooligomer Homooligomer Protein 2 ZINC ION × 2 water × 2 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name HOLB_ECOLI
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–334; UniProt 1–334

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_id1a5t
Deposition date deposition_date1998-02-18
Structure title titleCRYSTAL STRUCTURE OF THE DELTA PRIME SUBUNIT OF THE CLAMP-LOADER COMPLEX OF ESCHERICHIA COLI DNA POLYMERASE III
Keywords keywordsZINC FINGER, DNA REPLICATION; ZINC FINGER
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.

1a5t__assembly_1__model_1

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

Download this curve (.dat)

1a5t__assembly_1__model_1 | I(q)

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

1a5t__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)31.72 Å
Rg (electron density)31.47 Å
Total Rg31.91 Å
Atom count6126
Residues648
Excluded volume89700 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 1a5t__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 (3)

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6. Fold Classification (SCOP + CATH) 5 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd1a5ta1
Class classa — All alpha proteins
Fold Fold folda.80 — post-AAA+ oligomerization domain-like
Superfamily Superfamily superfamilya.80.1 — post-AAA+ oligomerization domain-like
Family Family familya.80.1.1 — DNA polymerase III clamp loader subunits, C-terminal domain
Domain ID domain_idd1a5ta2
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 (3 domains)

Domain ID domain_id1a5tA01
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_id1a5tA02
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology8 — Helicase, Ruva Protein; domain 3
Homologous superfamily homologous superfamily10 — Ubiquitin-associated (UBA) domain
Domain ID domain_id1a5tA03
Class class1 — Mainly Alpha
Architecture architecture20 — Up-down Bundle
Topology topology272 — Zinc Finger, Delta Prime; domain 3
Homologous superfamily homologous superfamily10 —
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7. Citations (2)