3k0s

Crystal structure of E.coli DNA mismatch repair protein MutS, D693N mutant, in complex with GT mismatched DNA

Method: X-RAY DIFFRACTION Dmax: 131.0 Å Quality: GOOD

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

DNA mismatch repair protein mutS

Escherichia coli

UniProt P23909

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–DNA Homooligomer Protein × 2 DNA 2 PDB declaration: tetrameric(4) Consistent with all polymer counts Chain A; UniProt 2–800 Chain B; UniProt 2–800 Fragment:UNP residues 2-800 Mutation:D693N 5'-D(*AP*GP*CP*TP*GP*CP*CP*AP*GP*GP*CP*AP*CP*CP*AP*GP*TP*GP*TP*CP*AP*GP*CP*GP*TP*CP*CP*TP*AP*T)-3' × 1 5'-D(*AP*TP*AP*GP*GP*AP*CP*GP*CP*TP*GP*AP*C*AP*CP*T*GP*GP*TP*GP*CP*TP*TP*GP*GP*CP*AP*GP*CP*T)-3' × 1 ADP ADENOSINE-5'-DIPHOSPHATE × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 7.5;293 K;11% PEG 6000, 750mM NaCl, 25mM Hepes, 10mM MgCl2, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K Resolution 2.20 Å R-free 0.246

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.

24 other PDB entries and 30 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name MUTS_ECOLI
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–799; UniProt 2–800 Author chain B; PDBConstruct 1–799; UniProt 2–800

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 3k0s

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 3k0s
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2. Structure Basics 2. Structure Basics

Entry ID entry_id3k0s
Deposition date deposition_date2009-09-25
Structure title titleCrystal structure of E.coli DNA mismatch repair protein MutS, D693N mutant, in complex with GT mismatched DNA
Keywords keywords;Magnesium mutant, DNA repair protein, Protein-DNA complex, ATP-binding, DNA damage, DNA repair, DNA-binding, Nucleotide-binding, DNA BINDING PROTEIN-DNA complex ;; DNA BINDING PROTEIN/DNA
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier40.61
Radius of gyration Rg (electron density) rg_electron39.99
Forward intensity I(0) i0552439000.00
Molecular weight molecular_weight184040.0 kDa
Excluded volume excluded_volume227150 ų
Envelope volume envelope_volume316940 ų
Hydration-shell volume shell_volume64433 ų
Envelope diameter envelope_diameter131.9
Shell Rg shell_rg47.45
Envelope Rg envelope_rg38.83
Shape Rg shape_rg40.00
Total Rg total_rg40.35
Total atoms total_atoms12892
Residues n_residues1575
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 dmax131.0
Rg (real space) rg_real40.48
Rg uncertainty (real space) rg_real_error1.16
I(0) (real space) i0_real5.5240e+08
I(0) uncertainty (real space) i0_real_error9.8190e+06
Rg (reciprocal space) rg_reciprocal40.61
I(0) (reciprocal space) i0_reciprocal552500000.0000
Solution quality estimate total_estimate0.8274
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary50.4
Skewness Skewness skewness0.163
Kurtosis Kurtosis kurtosis-0.508
Angular range angular_range— – 0.1950 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha46840000.0000
Real-space data points n_real_points40
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.918; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.999; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (5)

7. Fold Classification (SCOP + CATH) 10 domains

CATH v4.4 (10 domains)

Domain ID domain_id3k0sA01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology1170 — MutS, DNA mismatch repair protein, domain I
Homologous superfamily homologous superfamily10 — DNA repair protein MutS, domain I
Domain ID domain_id3k0sA02
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology420 — Nucleotidyltransferase; domain 5
Homologous superfamily homologous superfamily110 — MutS, connector domain
Domain ID domain_id3k0sA03
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology1420 — MutS, DNA mismatch repair protein; Chain A, domain 3
Homologous superfamily homologous superfamily10
Domain ID domain_id3k0sA04
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology1420 — MutS, DNA mismatch repair protein; Chain A, domain 3
Homologous superfamily homologous superfamily10
Domain ID domain_id3k0sA05
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_id3k0sB01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology1170 — MutS, DNA mismatch repair protein, domain I
Homologous superfamily homologous superfamily10 — DNA repair protein MutS, domain I
Domain ID domain_id3k0sB02
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology420 — Nucleotidyltransferase; domain 5
Homologous superfamily homologous superfamily110 — MutS, connector domain
Domain ID domain_id3k0sB03
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology1420 — MutS, DNA mismatch repair protein; Chain A, domain 3
Homologous superfamily homologous superfamily10
Domain ID domain_id3k0sB04
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology1420 — MutS, DNA mismatch repair protein; Chain A, domain 3
Homologous superfamily homologous superfamily10
Domain ID domain_id3k0sB05
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily300 — P-loop containing nucleotide triphosphate hydrolases

8. Citations (1)

9. Files and Curves (10)