7z4d

Crystal structure of SpCas9 bound to a 10 nucleotide complementary DNA substrate

Method: X-RAY DIFFRACTION Dmax: 183.2 Å Quality: GOOD

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

CRISPR-associated endonuclease Cas9/Csn1

Streptococcus pyogenes

UniProt Q99ZW2

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Other combination Monomer Protein × 1 DNA 2 RNA 1 PDB declaration: tetrameric(4) Consistent with all polymer counts Chain B; UniProt 1–1368 Mutation:D10A, H840A sgRNA × 1 Target strand of 10 nucleotide complementary DNA substrate × 1 Non-target strand of 10 nucleotide complementary DNA substrate × 1 K POTASSIUM ION × 10 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 6.5;293.15 K;0.1 M sodium cacodylate pH 6.5, 0.8-1.2M ammonium formate, 12-14% PEG4000 Resolution 3.10 Å R-free 0.276
2 Other combination Monomer Protein × 1 DNA 2 RNA 1 PDB declaration: tetrameric(4) Consistent with all polymer counts Chain E; UniProt 1–1368 Mutation:D10A, H840A sgRNA × 1 Target strand of 10 nucleotide complementary DNA substrate × 1 Non-target strand of 10 nucleotide complementary DNA substrate × 1 K POTASSIUM ION × 6 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 6.5;293.15 K;0.1 M sodium cacodylate pH 6.5, 0.8-1.2M ammonium formate, 12-14% PEG4000 Resolution 3.10 Å R-free 0.276

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.

134 other PDB entries and 145 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name CAS9_STRP1
Isoform
PDB entities 2
Chains and sequence ranges Author chain B; PDBConstruct 1–1368; UniProt 1–1368 Author chain E; PDBConstruct 1–1368; UniProt 1–1368

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 7z4d

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 7z4d
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2. Structure Basics 2. Structure Basics

Entry ID entry_id7z4d
Deposition date deposition_date2022-03-03
Structure title titleCrystal structure of SpCas9 bound to a 10 nucleotide complementary DNA substrate
Keywords keywordsCRISPR, Cas9, R-loop, substrate binding, off-target, HYDROLASE; HYDROLASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier53.44
Radius of gyration Rg (electron density) rg_electron54.91
Forward intensity I(0) i02340150000.00
Molecular weight molecular_weight359350.0 kDa
Excluded volume excluded_volume430470 ų
Envelope volume envelope_volume675590 ų
Hydration-shell volume shell_volume101120 ų
Envelope diameter envelope_diameter194.2
Shell Rg shell_rg58.76
Envelope Rg envelope_rg53.89
Shape Rg shape_rg55.00
Total Rg total_rg54.73
Total atoms total_atoms24994
Residues n_residues2675
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 dmax183.2
Rg (real space) rg_real53.44
Rg uncertainty (real space) rg_real_error1.85
I(0) (real space) i0_real2.3400e+09
I(0) uncertainty (real space) i0_real_error4.6280e+07
Rg (reciprocal space) rg_reciprocal53.42
I(0) (reciprocal space) i0_reciprocal2340000000.0000
Solution quality estimate total_estimate0.8737
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary63.2
Skewness Skewness skewness0.338
Kurtosis Kurtosis kurtosis-0.374
Angular range angular_range— – 0.1450 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha183900000.0000
Real-space data points n_real_points30
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.842; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.998; Smooth: 0.829

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (6)

8. Citations (1)

9. Files and Curves (10)