4yhr

Crystal Structure of Yeast Proliferating Cell Nuclear Antigen

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

Proliferating cell nuclear antigen

Saccharomyces cerevisiae (strain ATCC 204508 / S288c)

UniProt P15873

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein homooligomer Homooligomer Protein 3 No other associated polymer Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name PCNA_YEAST
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 9–266; UniProt 1–258

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_id4yhr
Deposition date deposition_date2015-02-27
Structure title titleCrystal Structure of Yeast Proliferating Cell Nuclear Antigen
Keywords keywords;replication fork, DNA-binding proteins, fungal proteins, proliferating cell nuclear antigen, Saccharomyces cerevisiae, crystallization, DNA repair, DNA replication, models, DNA sliding clamp, hydrophobic and hydrophilic interactions, DNA BINDING PROTEIN ;; DNA BINDING PROTEIN
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.

4yhr__assembly_1__model_1

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

Download this curve (.dat)

4yhr__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.

4yhr__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)33.75 Å
Rg (electron density)32.62 Å
Total Rg33.41 Å
Atom count6033
Residues768
Excluded volume108690 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 4yhr__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 (1)

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6. Fold Classification (SCOP + CATH) 3 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd4yhra1
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.131 — DNA clamp
Superfamily Superfamily superfamilyd.131.1 — DNA clamp
Family Family familyd.131.1.2 — DNA polymerase processivity factor
Domain ID domain_idd4yhra2
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.131 — DNA clamp
Superfamily Superfamily superfamilyd.131.1 — DNA clamp
Family Family familyd.131.1.2 — DNA polymerase processivity factor

CATH v4.4 (1 domains)

Domain ID domain_id4yhrA00
Class class3 — Alpha Beta
Architecture architecture70 — Box
Topology topology10 — Proliferating Cell Nuclear Antigen
Homologous superfamily homologous superfamily10 —
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7. Citations (1)