1b8h

SLIDING CLAMP, DNA POLYMERASE

Method: X-RAY DIFFRACTION Dmax: 97.0 Å Quality: GOOD

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

DNA POLYMERASE PROCESSIVITY COMPONENT

Enterobacteria phage RB69

UniProt O80164

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 heterocomplex Heteromer Protein × 4 PDB declaration: tetrameric(4) Consistent with protein copy count Chain A; UniProt 1–228 Chain B; UniProt 1–228 Chain C; UniProt 1–228 Not recorded DNA POLYMERASE fragment × 1 (Q38087) X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 7.5;pH 7.5, VAPOR DIFFUSION, HANGING DROP Resolution 3.00 Å R-free 0.313

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.

1 other PDB entries and 1 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name DPA5_BPR69
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–228; UniProt 1–228 Author chain B; PDBConstruct 1–228; UniProt 1–228 Author chain C; PDBConstruct 1–228; UniProt 1–228

DNA POLYMERASE fragment

OrganismNot specified

UniProt Q38087

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 heterocomplex Heteromer Protein × 4 PDB declaration: tetrameric(4) Consistent with protein copy count Chain D; UniProt 893–903 Fragment:RESIDUES 893-903 DNA POLYMERASE PROCESSIVITY COMPONENT × 3 (O80164) X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 7.5;pH 7.5, VAPOR DIFFUSION, HANGING DROP Resolution 3.00 Å R-free 0.313

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.

120 other PDB entries and 166 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name DPOL_BPR69
Isoform
PDB entities 2
Chains and sequence ranges Author chain D; PDBConstruct 1–11; UniProt 893–903

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 1b8h

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 1b8h
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2. Structure Basics 2. Structure Basics

Entry ID entry_id1b8h
Deposition date deposition_date1999-02-01
Structure title titleSLIDING CLAMP, DNA POLYMERASE
Keywords keywordsSLIDING CLAMP, GP45, REPLISOME, ACCESSORY PROTEIN, TRANSFERASE; TRANSFERASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier34.50
Radius of gyration Rg (electron density) rg_electron33.39
Forward intensity I(0) i089656700.00
Molecular weight molecular_weight76662.0 kDa
Excluded volume excluded_volume96588 ų
Envelope volume envelope_volume136250 ų
Hydration-shell volume shell_volume33410 ų
Envelope diameter envelope_diameter99.2
Shell Rg shell_rg41.35
Envelope Rg envelope_rg31.75
Shape Rg shape_rg33.42
Total Rg total_rg34.00
Total atoms total_atoms5393
Residues n_residues695
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 dmax97.0
Rg (real space) rg_real34.36
Rg uncertainty (real space) rg_real_error0.67
I(0) (real space) i0_real8.9660e+07
I(0) uncertainty (real space) i0_real_error1.4530e+06
Rg (reciprocal space) rg_reciprocal34.45
I(0) (reciprocal space) i0_reciprocal89660000.0000
Solution quality estimate total_estimate0.8479
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks3
Primary peak position r_peak_primary52.7
Skewness Skewness skewness-0.042
Kurtosis Kurtosis kurtosis-0.902
Angular range angular_range— – 0.2300 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha44510000.0000
Real-space data points n_real_points47
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.950; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.958; Smooth: 0.209

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (2)

7. Fold Classification (SCOP + CATH) 9 domains

SCOP 2.08 (6 domains)

Domain ID domain_idd1b8ha1
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_idd1b8ha2
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_idd1b8hb1
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_idd1b8hb2
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_idd1b8hc1
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_idd1b8hc2
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 (3 domains)

Domain ID domain_id1b8hA00
Class class3 — Alpha Beta
Architecture architecture70 — Box
Topology topology10 — Proliferating Cell Nuclear Antigen
Homologous superfamily homologous superfamily10
Domain ID domain_id1b8hB00
Class class3 — Alpha Beta
Architecture architecture70 — Box
Topology topology10 — Proliferating Cell Nuclear Antigen
Homologous superfamily homologous superfamily10
Domain ID domain_id1b8hC00
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)