7pck

CRYSTAL STRUCTURE OF WILD TYPE HUMAN PROCATHEPSIN K

Method: X-RAY DIFFRACTION Dmax: 157.5 Å Quality: GOOD

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

PROTEIN (PROCATHEPSIN K)

OrganismNot specified

UniProt P43235

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 16–329 Chain C; UniProt 16–329 Not recorded No other associated polymer X-RAY DIFFRACTION X-ray crystallization conditions:pH 7;100 MM TRIS-HCL, 5% 2-METHYL-2,4-PENTANEDIOL, 12 MM AMMONIUM SULPHATE AND 9% PEG, pH 7.0 Resolution 3.20 Å R-free 0.253
2 Protein homooligomer Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain B; UniProt 16–329 Chain D; UniProt 16–329 Not recorded No other associated polymer X-RAY DIFFRACTION X-ray crystallization conditions:pH 7;100 MM TRIS-HCL, 5% 2-METHYL-2,4-PENTANEDIOL, 12 MM AMMONIUM SULPHATE AND 9% PEG, pH 7.0 Resolution 3.20 Å R-free 0.253

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.

69 other PDB entries and 82 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name CATK_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–314; UniProt 16–329 Author chain B; PDBConstruct 1–314; UniProt 16–329 Author chain C; PDBConstruct 1–314; UniProt 16–329 Author chain D; PDBConstruct 1–314; UniProt 16–329

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 7pck

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id7pck
Deposition date deposition_date1998-10-21
Structure title titleCRYSTAL STRUCTURE OF WILD TYPE HUMAN PROCATHEPSIN K
Keywords keywordsHYDROLASE (THIOL PROTEASE), PROCATHEPSIN K, CYSTEINE PROTEASES, PROREGION, HYDROLASE; HYDROLASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier54.56
Radius of gyration Rg (electron density) rg_electron54.81
Forward intensity I(0) i0263109000.00
Molecular weight molecular_weight132320.0 kDa
Excluded volume excluded_volume164100 ų
Envelope volume envelope_volume257790 ų
Hydration-shell volume shell_volume39632 ų
Envelope diameter envelope_diameter169.1
Shell Rg shell_rg58.17
Envelope Rg envelope_rg51.74
Shape Rg shape_rg54.81
Total Rg total_rg54.89
Total atoms total_atoms9305
Residues n_residues1232
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 dmax157.5
Rg (real space) rg_real54.74
Rg uncertainty (real space) rg_real_error1.84
I(0) (real space) i0_real2.6310e+08
I(0) uncertainty (real space) i0_real_error4.9970e+06
Rg (reciprocal space) rg_reciprocal54.37
I(0) (reciprocal space) i0_reciprocal263000000.0000
Solution quality estimate total_estimate0.7582
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary27.1
Skewness Skewness skewness0.113
Kurtosis Kurtosis kurtosis-0.998
Angular range angular_range— – 0.1450 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha5175000.0000
Real-space data points n_real_points30
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.759; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.575; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (1)

7. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (4 domains)

Domain ID domain_idd7pcka_
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.3 — Cysteine proteinases
Superfamily Superfamily superfamilyd.3.1 — Cysteine proteinases
Family Family familyd.3.1.1 — Papain-like
Domain ID domain_idd7pckb_
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.3 — Cysteine proteinases
Superfamily Superfamily superfamilyd.3.1 — Cysteine proteinases
Family Family familyd.3.1.1 — Papain-like
Domain ID domain_idd7pckc_
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.3 — Cysteine proteinases
Superfamily Superfamily superfamilyd.3.1 — Cysteine proteinases
Family Family familyd.3.1.1 — Papain-like
Domain ID domain_idd7pckd_
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.3 — Cysteine proteinases
Superfamily Superfamily superfamilyd.3.1 — Cysteine proteinases
Family Family familyd.3.1.1 — Papain-like

CATH v4.4 (4 domains)

Domain ID domain_id7pckA00
Class class3 — Alpha Beta
Architecture architecture90 — Alpha-Beta Complex
Topology topology70 — Cathepsin B; Chain A
Homologous superfamily homologous superfamily10 — Cysteine proteinases
Domain ID domain_id7pckB00
Class class3 — Alpha Beta
Architecture architecture90 — Alpha-Beta Complex
Topology topology70 — Cathepsin B; Chain A
Homologous superfamily homologous superfamily10 — Cysteine proteinases
Domain ID domain_id7pckC00
Class class3 — Alpha Beta
Architecture architecture90 — Alpha-Beta Complex
Topology topology70 — Cathepsin B; Chain A
Homologous superfamily homologous superfamily10 — Cysteine proteinases
Domain ID domain_id7pckD00
Class class3 — Alpha Beta
Architecture architecture90 — Alpha-Beta Complex
Topology topology70 — Cathepsin B; Chain A
Homologous superfamily homologous superfamily10 — Cysteine proteinases

8. Citations (1)

9. Files and Curves (10)