1shj

Caspase-7 in complex with DICA allosteric inhibitor

Method: X-RAY DIFFRACTION Dmax: 68.1 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 homooligomer Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 50–303 Chain B; UniProt 50–303 Mutation:D169A SO4 SULFATE ION × 3 NXN 2-(2,4-DICHLORO-PHENOXY)-N-(2-MERCAPTO-ETHYL)-ACETAMIDE × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 5.8;277 K;citrate, LiSO4, NaCl, pH 5.8, VAPOR DIFFUSION, HANGING DROP, temperature 277K Resolution 2.80 Å R-free 0.287

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
Chains and sequence ranges Author chain A; PDBConstruct 1–254; UniProt 50–303 Author chain B; PDBConstruct 1–254; UniProt 50–303

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 1shj

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 1shj
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2. Structure Basics 2. Structure Basics

Entry ID entry_id1shj
Deposition date deposition_date2004-02-25
Structure title titleCaspase-7 in complex with DICA allosteric inhibitor
Keywords keywordscysteine protease, allosteric, inhibitor, central cavity, HYDROLASE; HYDROLASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier22.70
Radius of gyration Rg (electron density) rg_electron21.38
Forward intensity I(0) i038959900.00
Molecular weight molecular_weight48281.0 kDa
Excluded volume excluded_volume60412 ų
Envelope volume envelope_volume70262 ų
Hydration-shell volume shell_volume26657 ų
Envelope diameter envelope_diameter70.3
Shell Rg shell_rg28.75
Envelope Rg envelope_rg21.60
Shape Rg shape_rg21.37
Total Rg total_rg22.25
Total atoms total_atoms3371
Residues n_residues417
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 dmax68.1
Rg (real space) rg_real22.57
Rg uncertainty (real space) rg_real_error0.25
I(0) (real space) i0_real3.8960e+07
I(0) uncertainty (real space) i0_real_error4.4680e+05
Rg (reciprocal space) rg_reciprocal22.60
I(0) (reciprocal space) i0_reciprocal38960000.0000
Solution quality estimate total_estimate0.9103
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary28.9
Skewness Skewness skewness0.143
Kurtosis Kurtosis kurtosis-0.511
Angular range angular_range— – 0.3500 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha7936000.0000
Real-space data points n_real_points67
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.949; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.988; Smooth: 0.995

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

7. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd1shja_
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_idd1shjb_
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

CATH v4.4 (2 domains)

Domain ID domain_id1shjA00
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily1460
Domain ID domain_id1shjB00
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)