7xn4

Cryo-EM structure of CopC-CaM-caspase-3 with NAD+

Method: ELECTRON MICROSCOPY Dmax: 111.3 Å Quality: GOOD

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

Caspase-3

Homo sapiens

UniProt P42574

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 1–277 Chain C; UniProt 1–277 Not recorded Arginine ADP-riboxanase CopC × 1 (Q7NWF2) Calmodulin-1 × 1 (P0DP23) NAD NICOTINAMIDE-ADENINE-DINUCLEOTIDE × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.5 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 3.35 Å

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 196 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name CASP3_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–277; UniProt 1–277 Author chain C; PDBConstruct 1–277; UniProt 1–277

Arginine ADP-riboxanase CopC

Chromobacterium violaceum

UniProt Q7NWF2

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 B; UniProt 1–487 Not recorded Caspase-3 × 2 (P42574) Calmodulin-1 × 1 (P0DP23) NAD NICOTINAMIDE-ADENINE-DINUCLEOTIDE × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.5 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 3.35 Å

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.

3 other PDB entries and 3 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name Q7NWF2_CHRVO
Isoform
PDB entities 2
Chains and sequence ranges Author chain B; PDBConstruct 1–487; UniProt 1–487

Calmodulin-1

Homo sapiens

UniProt P0DP23

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 1–149 Not recorded Caspase-3 × 2 (P42574) Arginine ADP-riboxanase CopC × 1 (Q7NWF2) NAD NICOTINAMIDE-ADENINE-DINUCLEOTIDE × 1 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.5 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 3.35 Å

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.

213 other PDB entries and 279 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name CALM1_HUMAN
Isoform
PDB entities 3
Chains and sequence ranges Author chain D; PDBConstruct 1–149; UniProt 1–149

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 7xn4

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 7xn4
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2. Structure Basics 2. Structure Basics

Entry ID entry_id7xn4
Deposition date deposition_date2022-04-28
Structure title titleCryo-EM structure of CopC-CaM-caspase-3 with NAD+
Keywords keywords;type III secretion system, Chromobacterium violaceum, caspase-3, new PTM, programmed cell deathA, DP-ribosylation, ADPR-deacylization, TOXIN ;; TOXIN
Experimental Method methodELECTRON MICROSCOPY

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

Radius of gyration Rg (Guinier) rg_guinier33.69
Radius of gyration Rg (electron density) rg_electron33.22
Forward intensity I(0) i0153098000.00
Molecular weight molecular_weight97458.0 kDa
Excluded volume excluded_volume121400 ų
Envelope volume envelope_volume160070 ų
Hydration-shell volume shell_volume40249 ų
Envelope diameter envelope_diameter115.5
Shell Rg shell_rg39.73
Envelope Rg envelope_rg32.89
Shape Rg shape_rg33.20
Total Rg total_rg33.82
Total atoms total_atoms6859
Residues n_residues859
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 dmax111.3
Rg (real space) rg_real33.69
Rg uncertainty (real space) rg_real_error1.20
I(0) (real space) i0_real1.5310e+08
I(0) uncertainty (real space) i0_real_error2.7630e+06
Rg (reciprocal space) rg_reciprocal33.69
I(0) (reciprocal space) i0_reciprocal153100000.0000
Solution quality estimate total_estimate0.8850
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary35.5
Skewness Skewness skewness0.307
Kurtosis Kurtosis kurtosis-0.429
Angular range angular_range— – 0.2350 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha41130000.0000
Real-space data points n_real_points48
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.898; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.961; Smooth: 0.845

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

8. Citations (1)

9. Files and Curves (10)