3o1g

Cathepsin K covalently bound to a 2-cyano pyrimidine inhibitor with a benzyl P3 group.

Method: X-RAY DIFFRACTION Dmax: 56.6 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 SO4 SULFATE ION × 2 O75 N-benzyl-3-(2-cyano-6-propylpyrimidin-4-yl)-N-[2-(dimethylamino)ethyl]-5-(trifluoromethyl)benzamide × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 8.4;298 K;Cocrystallization. Protein solution: 20 mM NaAcetate pH 4.0, 0.2 M NaCl. Crystallization condition: 32% PEG 4K, 0.1 M Tris pH 8.4, 0.2 M LiSO4, VAPOR DIFFUSION, HANGING DROP, temperature 298K Resolution 1.65 Å R-free 0.198

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 3o1g

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 3o1g
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2. Structure Basics 2. Structure Basics

Entry ID entry_id3o1g
Deposition date deposition_date2010-07-21
Structure title titleCathepsin K covalently bound to a 2-cyano pyrimidine inhibitor with a benzyl P3 group.
Keywords keywordshydrolase, reversible covalent inhibitor, ligand covalently bound to Cys25, bone, K protein from comp; HYDROLASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier17.58
Radius of gyration Rg (electron density) rg_electron16.36
Forward intensity I(0) i011584800.00
Molecular weight molecular_weight24190.0 kDa
Excluded volume excluded_volume29808 ų
Envelope volume envelope_volume33637 ų
Hydration-shell volume shell_volume16912 ų
Envelope diameter envelope_diameter58.1
Shell Rg shell_rg22.78
Envelope Rg envelope_rg16.77
Shape Rg shape_rg16.32
Total Rg total_rg17.51
Total atoms total_atoms1695
Residues n_residues215
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 dmax56.6
Rg (real space) rg_real17.46
Rg uncertainty (real space) rg_real_error0.36
I(0) (real space) i0_real1.1580e+07
I(0) uncertainty (real space) i0_real_error1.2640e+05
Rg (reciprocal space) rg_reciprocal17.48
I(0) (reciprocal space) i0_reciprocal11580000.0000
Solution quality estimate total_estimate0.8096
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary50.6
Skewness Skewness skewness0.178
Kurtosis Kurtosis kurtosis-0.356
Angular range angular_range— – 0.4550 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha3084000.0000
Real-space data points n_real_points76
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.842; Stabil: 0.999; Sysdev: 1.000; Positv: 1.000; Valcen: 0.999; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

7. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd3o1ga_
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_id3o1gA00
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)