4zvu

Caspase-7 wild-type bound to the caspase-6 cognate tetrapeptide inhibitor Ac-VEID-cho

Method: X-RAY DIFFRACTION Dmax: 69.2 Å Quality: EXCELLENT

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

Caspase-7

Homo sapiens

UniProt P55210

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 × 6 PDB declaration: hexameric(6) Consistent with protein copy count Chain A; UniProt 1–198 Chain B; UniProt 199–303 Chain C; UniProt 1–198 Chain D; UniProt 199–303 Fragment:UNP residues 34-231 Fragment:UNP residues 232-336 Tetrapeptide Inhibitor Ac-VEID-CHO × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 5.6;277.15 K;300 mM Diammonium Hydrogen Citrate, 14% PEG 3350, 10 mM Guanidinium Chloride, 10 mM Dithiotheritol Resolution 2.60 Å R-free 0.252

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.

46 other PDB entries and 54 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name CASP7_HUMAN
Isoform
PDB entities 1, 2
Chains and sequence ranges Author chain A; PDBConstruct 1–198; UniProt 1–198 Author chain C; PDBConstruct 1–198; UniProt 1–198 Author chain B; PDBConstruct 1–105; UniProt 199–303 Author chain D; PDBConstruct 1–105; UniProt 199–303

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 4zvu

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 4zvu
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2. Structure Basics 2. Structure Basics

Entry ID entry_id4zvu
Deposition date deposition_date2015-05-18
Structure title titleCaspase-7 wild-type bound to the caspase-6 cognate tetrapeptide inhibitor Ac-VEID-cho
Keywords keywordsDirected Evolution, Protease, Peptide Inhibitor, designed active site specificity, 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_guinier23.24
Radius of gyration Rg (electron density) rg_electron21.92
Forward intensity I(0) i048328500.00
Molecular weight molecular_weight54119.0 kDa
Excluded volume excluded_volume67654 ų
Envelope volume envelope_volume77362 ų
Hydration-shell volume shell_volume28352 ų
Envelope diameter envelope_diameter71.5
Shell Rg shell_rg29.74
Envelope Rg envelope_rg22.10
Shape Rg shape_rg21.92
Total Rg total_rg22.78
Total atoms total_atoms3799
Residues n_residues471
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 dmax69.2
Rg (real space) rg_real23.07
Rg uncertainty (real space) rg_real_error0.33
I(0) (real space) i0_real4.8330e+07
I(0) uncertainty (real space) i0_real_error6.9050e+05
Rg (reciprocal space) rg_reciprocal23.11
I(0) (reciprocal space) i0_reciprocal48330000.0000
Solution quality estimate total_estimate0.9113
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary68.1
Skewness Skewness skewness0.074
Kurtosis Kurtosis kurtosis-0.569
Angular range angular_range— – 0.3400 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha9162000.0000
Real-space data points n_real_points66
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.956; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.983; Smooth: 0.993

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

7. Fold Classification (SCOP + CATH) 4 domains

CATH v4.4 (4 domains)

Domain ID domain_id4zvuA00
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily1460
Domain ID domain_id4zvuB00
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology70 — Alpha-Beta Plaits
Homologous superfamily homologous superfamily1470 — Caspase-like
Domain ID domain_id4zvuC00
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily1460
Domain ID domain_id4zvuD00
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology70 — Alpha-Beta Plaits
Homologous superfamily homologous superfamily1470 — Caspase-like

8. Citations (1)

9. Files and Curves (10)