2j30

The Role of Loop Bundle Hydrogen Bonds in the Maturation and Activity of (Pro)caspase-3

Method: X-RAY DIFFRACTION Dmax: 71.2 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 × 8 PDB declaration: octameric(8) Consistent with protein copy count Chain A; UniProt 29–277 Fragment:RESIDUES 29-277 ACE-ASP-GLU-VAL-ASP-CHLOROMETHYLKETONE INHIBITOR × 4 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 8.5;291 K;PROTEINS WERE DIALYZED IN A BUFFER OF 10 MM TRIS-HCL, PH 8.5, 1 MM DTT. THE PROTEIN WAS CONCENTRATED TO 10 MG/ML USING AMICON ULTRAFREE CENTRIFUGAL FILTER DEVICES, AND INHIBITOR, AC-DEVD-CMK RECONSTITUTED IN DMSO, WAS THEN ADDED AT 5:1 WT:WT, INHIBITOR TO PEPTIDE. THE PROTEIN WAS DILUTED TO A CONCENTRATION OF 8 MG/ML BY ADDING 10 MM TRIS-HCL, PH 8.5, CONCENTRATED DTT AND CONCENTRATED NAN3 SO THAT THE FINAL BUFFER WAS 10 MM TRIS-HCL, PH 8.5, 10 MM DTT, 3 MM NAN3. 2 UL OF CONCENTRATED PROTEIN WAS MIXED 1:1 WITH WELL BUFFER THAT CONTAINED 100 MM SODIUM CITRATE, PH 5, 3 MM NAN3, 10 MM DTT AND 17% PEG 6000 W/V. SOLUTIONS WERE INCUBATED AT 18 DEG C USING THE HANGING DROP METHOD. CRYSTALS GREW WITHIN THREE DAYS FOR WILD- TYPE CASPASE-3 AND WITHIN TWO WEEKS FOR THE MUTANTS. THE IDEAL FREEZING CONDITIONS WERE FOUND TO BE WITH 80% MOTHER LIQUOR AND 20% PEG 400. Resolution 1.40 Å R-free 0.207

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 1–249; UniProt 29–277

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 2j30

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 2j30
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2. Structure Basics 2. Structure Basics

Entry ID entry_id2j30
Deposition date deposition_date2006-08-17
Structure title titleThe Role of Loop Bundle Hydrogen Bonds in the Maturation and Activity of (Pro)caspase-3
Keywords keywordsHYDROLASE, PRO-CASPASE3, THIOL PROTEASE, HYDROLASE-HYDROLASE INHIBITOR COMPLEX; HYDROLASE/HYDROLASE INHIBITOR
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier19.58
Radius of gyration Rg (electron density) rg_electron18.64
Forward intensity I(0) i027508200.00
Molecular weight molecular_weight26669.0 kDa
Excluded volume excluded_volume25644 ų
Envelope volume envelope_volume42660 ų
Hydration-shell volume shell_volume19043 ų
Envelope diameter envelope_diameter72.5
Shell Rg shell_rg25.39
Envelope Rg envelope_rg19.75
Shape Rg shape_rg18.59
Total Rg total_rg19.44
Total atoms total_atoms2010
Residues n_residues249
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 dmax71.2
Rg (real space) rg_real19.57
Rg uncertainty (real space) rg_real_error0.47
I(0) (real space) i0_real2.7510e+07
I(0) uncertainty (real space) i0_real_error3.3430e+05
Rg (reciprocal space) rg_reciprocal19.57
I(0) (reciprocal space) i0_reciprocal27510000.0000
Solution quality estimate total_estimate0.8294
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary23.1
Skewness Skewness skewness0.430
Kurtosis Kurtosis kurtosis0.000
Angular range angular_range— – 0.4050 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha4801000.0000
Real-space data points n_real_points72
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.627; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.910; Smooth: 0.987

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

7. Fold Classification (SCOP + CATH) 3 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd2j30a1
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.17 — Caspase-like
Superfamily Superfamily superfamilyc.17.1 — Caspase-like
Family Family familyc.17.1.1 — Caspase catalytic domain
Domain ID domain_idd2j30a2
Class classl — Artifacts
Fold Fold foldl.1 — Tags
Superfamily Superfamily superfamilyl.1.1 — Tags
Family Family familyl.1.1.1 — Tags

CATH v4.4 (1 domains)

Domain ID domain_id2j30A00
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily1460

8. Citations (1)

9. Files and Curves (10)