1mem

Crystal structure of Cathepsin K complexed with a potent vinyl sulfone inhibitor

Method: X-RAY DIFFRACTION Dmax: 57.0 Å Quality: GOOD

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

Cathepsin K

Homo sapiens

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 monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain A; UniProt 115–329 Not recorded 0D6 N-{(1R)-3-phenyl-1-[2-(phenylsulfonyl)ethyl]propyl}-N~2~-(piperazin-1-ylcarbonyl)-L-leucinamide × 1 X-RAY DIFFRACTION X-ray crystallization conditions:pH 6;MG FORMATE, UNBUFFERED, pH 6.0 Resolution 1.80 Å

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 83 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 1–215; UniProt 115–329

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 1mem

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id1mem
Deposition date deposition_date1997-01-08
Structure title titleCrystal structure of Cathepsin K complexed with a potent vinyl sulfone inhibitor
Keywords keywords;OSTEOPOROSIS, PROTEASE, DRUG DESIGN, CYSTEINE, OSTEOCLAST, Disease mutation, Disulfide bond, Glycoprotein, Lysosome, Thiol protease, Zymogen, 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_guinier17.21
Radius of gyration Rg (electron density) rg_electron16.27
Forward intensity I(0) i017124600.00
Molecular weight molecular_weight22412.0 kDa
Excluded volume excluded_volume23055 ų
Envelope volume envelope_volume32575 ų
Hydration-shell volume shell_volume16596 ų
Envelope diameter envelope_diameter56.9
Shell Rg shell_rg22.61
Envelope Rg envelope_rg16.59
Shape Rg shape_rg16.39
Total Rg total_rg16.85
Total atoms total_atoms2042
Residues n_residues207
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 dmax57.0
Rg (real space) rg_real17.12
Rg uncertainty (real space) rg_real_error0.28
I(0) (real space) i0_real1.7120e+07
I(0) uncertainty (real space) i0_real_error1.8800e+05
Rg (reciprocal space) rg_reciprocal17.13
I(0) (reciprocal space) i0_reciprocal17120000.0000
Solution quality estimate total_estimate0.8782
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary21.8
Skewness Skewness skewness0.225
Kurtosis Kurtosis kurtosis-0.327
Angular range angular_range— – 0.4600 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha4798000.0000
Real-space data points n_real_points77
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.806; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 1.000; Smooth: 0.993

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

7. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd1mema_
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 (1 domains)

Domain ID domain_id1memA00
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)