3gpn

Structure of the non-trimeric form of the E113G PCNA mutant protein

Method: X-RAY DIFFRACTION Dmax: 66.9 Å Quality: GOOD

1. Protein Identity and Related Structures Protein Identity & Related Structures

Proliferating cell nuclear antigen

Saccharomyces cerevisiae

UniProt P15873

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein homooligomer Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 1–258 Mutation:E113G No other associated polymer X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 5.8;291 K;1.6 M ammonium sulfate and 0.1 M sodium Citrate, pH 5.8, VAPOR DIFFUSION, HANGING DROP, temperature 291K Resolution 2.50 Å R-free 0.273

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

55 other PDB entries and 61 assemblies. Open the comparison page and filter oligomeric states

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

SAXS scattering curve SAXS Profile

SAXS profile for 3gpn

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 3gpn
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2. Structure Basics 2. Structure Basics

Entry ID entry_id3gpn
Deposition date deposition_date2009-03-23
Structure title titleStructure of the non-trimeric form of the E113G PCNA mutant protein
Keywords keywordsReplication, DNA damage, DNA repair, DNA replication, DNA-binding, Isopeptide bond, Nucleus, Ubl conjugation, DNA BINDING PROTEIN; DNA BINDING PROTEIN
Experimental Method methodX-RAY DIFFRACTION

3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier21.06
Radius of gyration Rg (electron density) rg_electron19.80
Forward intensity I(0) i013221600.00
Molecular weight molecular_weight28176.0 kDa
Excluded volume excluded_volume35703 ų
Envelope volume envelope_volume43449 ų
Hydration-shell volume shell_volume18737 ų
Envelope diameter envelope_diameter68.2
Shell Rg shell_rg25.63
Envelope Rg envelope_rg20.10
Shape Rg shape_rg19.75
Total Rg total_rg20.83
Total atoms total_atoms1979
Residues n_residues253
Spherical-harmonic order n_harmonics20
q range q_range— – 0.5000 −1
Data points n_points101
Shell type shell_typedirectional
Solvent electron density solvent_density0.3340 e/ų
Shell contrast contrast_shell0.0300 e/ų
CRYSOL version crysol_version4.1.3

4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax66.9
Rg (real space) rg_real21.02
Rg uncertainty (real space) rg_real_error0.38
I(0) (real space) i0_real1.3220e+07
I(0) uncertainty (real space) i0_real_error1.6560e+05
Rg (reciprocal space) rg_reciprocal21.03
I(0) (reciprocal space) i0_reciprocal13220000.0000
Solution quality estimate total_estimate0.8988
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary24.6
Skewness Skewness skewness0.280
Kurtosis Kurtosis kurtosis-0.442
Angular range angular_range— – 0.3750 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha1885000.0000
Real-space data points n_real_points69
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.897; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.999; Smooth: 0.991

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (1)

7. Fold Classification (SCOP + CATH) 3 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd3gpna1
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_idd3gpna2
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_id3gpnA00
Class class3 — Alpha Beta
Architecture architecture70 — Box
Topology topology10 — Proliferating Cell Nuclear Antigen
Homologous superfamily homologous superfamily10

8. Citations (1)

9. Files and Curves (10)