4fdl

Crystal structure of Caspase-7

Method: X-RAY DIFFRACTION Dmax: 74.8 Å Quality: GOOD

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 2–303 Chain B; UniProt 2–303 Not recorded No other associated polymer X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 5.5;277 K;0.1 M sodium citrate, pH 5.0-5.7, 1.9 M sodium formate, VAPOR DIFFUSION, SITTING DROP, temperature 277K Resolution 2.80 Å R-free 0.239

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 4–305; UniProt 2–303 Author chain B; PDBConstruct 4–305; UniProt 2–303

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 4fdl

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id4fdl
Deposition date deposition_date2012-05-28
Structure title titleCrystal structure of Caspase-7
Keywords keywordscysteine protease, 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_guinier23.24
Radius of gyration Rg (electron density) rg_electron21.88
Forward intensity I(0) i048038600.00
Molecular weight molecular_weight53551.0 kDa
Excluded volume excluded_volume66832 ų
Envelope volume envelope_volume77075 ų
Hydration-shell volume shell_volume28305 ų
Envelope diameter envelope_diameter72.2
Shell Rg shell_rg29.68
Envelope Rg envelope_rg22.06
Shape Rg shape_rg21.88
Total Rg total_rg22.75
Total atoms total_atoms3759
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 dmax74.8
Rg (real space) rg_real23.06
Rg uncertainty (real space) rg_real_error0.54
I(0) (real space) i0_real4.8040e+07
I(0) uncertainty (real space) i0_real_error6.7540e+05
Rg (reciprocal space) rg_reciprocal23.11
I(0) (reciprocal space) i0_reciprocal48040000.0000
Solution quality estimate total_estimate0.8900
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary29.9
Skewness Skewness skewness0.071
Kurtosis Kurtosis kurtosis-0.551
Angular range angular_range— – 0.3400 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha9131000.0000
Real-space data points n_real_points66
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.859; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.991; Smooth: 1.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (2)

7. Fold Classification (SCOP + CATH) 2 domains

CATH v4.4 (2 domains)

Domain ID domain_id4fdlA00
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily1460
Domain ID domain_id4fdlB00
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)