8ofa

Crystal structure of human cathepsin L interacting with tosyl phenylalanyl chloromethyl ketone (TPCK)

Method: X-RAY DIFFRACTION Dmax: 89.0 Å Quality: EXCELLENT

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

Cathepsin L

Homo sapiens

UniProt P07711

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 114–333 Mutation:T110A TQ8 N-[(2S)-4-chloro-3-oxo-1-phenyl-butan-2-yl]-4-methyl-benzenesulfonamide × 1 EDO 1,2-ETHANEDIOL × 1 PEG DI(HYDROXYETHYL)ETHER × 2 DMS DIMETHYL SULFOXIDE × 3 PGE TRIETHYLENE GLYCOL × 1 PG5 1-METHOXY-2-[2-(2-METHOXY-ETHOXY]-ETHANE × 1 VLF 4-methyl-~{N}-[(2~{S})-4-oxidanyl-3-oxidanylidene-1-phenyl-butan-2-yl]benzenesulfonamide × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION;293 K;Mature cathepsin L at a concentration of 7 mg/ml was equilibrated against 27% w/v PEG 8000, 1 mM TCEP and 0.1 M sodium acetate at pH 4.0. Crystals, which grew at 293 K to final size after approximately 3 days, were transferred to a compound soaking solution containing 22% w/v PEG 8000, 1 mM TCEP and 0.1 M sodium acetate at pH 4.0 as well as 5% v/v DMSO and 10% v/v PEG 400. Resolution 1.90 Å R-free 0.217
2 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain B; UniProt 114–333 Mutation:T110A TQ8 N-[(2S)-4-chloro-3-oxo-1-phenyl-butan-2-yl]-4-methyl-benzenesulfonamide × 1 EDO 1,2-ETHANEDIOL × 1 PEG DI(HYDROXYETHYL)ETHER × 1 DMS DIMETHYL SULFOXIDE × 2 ACT ACETATE ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION;293 K;Mature cathepsin L at a concentration of 7 mg/ml was equilibrated against 27% w/v PEG 8000, 1 mM TCEP and 0.1 M sodium acetate at pH 4.0. Crystals, which grew at 293 K to final size after approximately 3 days, were transferred to a compound soaking solution containing 22% w/v PEG 8000, 1 mM TCEP and 0.1 M sodium acetate at pH 4.0 as well as 5% v/v DMSO and 10% v/v PEG 400. Resolution 1.90 Å R-free 0.217
3 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain C; UniProt 114–333 Mutation:T110A TQ8 N-[(2S)-4-chloro-3-oxo-1-phenyl-butan-2-yl]-4-methyl-benzenesulfonamide × 1 EDO 1,2-ETHANEDIOL × 1 PEG DI(HYDROXYETHYL)ETHER × 3 DMS DIMETHYL SULFOXIDE × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION;293 K;Mature cathepsin L at a concentration of 7 mg/ml was equilibrated against 27% w/v PEG 8000, 1 mM TCEP and 0.1 M sodium acetate at pH 4.0. Crystals, which grew at 293 K to final size after approximately 3 days, were transferred to a compound soaking solution containing 22% w/v PEG 8000, 1 mM TCEP and 0.1 M sodium acetate at pH 4.0 as well as 5% v/v DMSO and 10% v/v PEG 400. Resolution 1.90 Å R-free 0.217
4 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain D; UniProt 114–333 Mutation:T110A TQ8 N-[(2S)-4-chloro-3-oxo-1-phenyl-butan-2-yl]-4-methyl-benzenesulfonamide × 1 EDO 1,2-ETHANEDIOL × 4 PEG DI(HYDROXYETHYL)ETHER × 1 DMS DIMETHYL SULFOXIDE × 2 PGE TRIETHYLENE GLYCOL × 2 VLF 4-methyl-~{N}-[(2~{S})-4-oxidanyl-3-oxidanylidene-1-phenyl-butan-2-yl]benzenesulfonamide × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION;293 K;Mature cathepsin L at a concentration of 7 mg/ml was equilibrated against 27% w/v PEG 8000, 1 mM TCEP and 0.1 M sodium acetate at pH 4.0. Crystals, which grew at 293 K to final size after approximately 3 days, were transferred to a compound soaking solution containing 22% w/v PEG 8000, 1 mM TCEP and 0.1 M sodium acetate at pH 4.0 as well as 5% v/v DMSO and 10% v/v PEG 400. Resolution 1.90 Å R-free 0.217

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.

63 other PDB entries and 153 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name CATL1_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–220; UniProt 114–333 Author chain B; PDBConstruct 1–220; UniProt 114–333 Author chain C; PDBConstruct 1–220; UniProt 114–333 Author chain D; PDBConstruct 1–220; UniProt 114–333

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 8ofa

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 8ofa
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2. Structure Basics 2. Structure Basics

Entry ID entry_id8ofa
Deposition date deposition_date2023-03-14
Structure title titleCrystal structure of human cathepsin L interacting with tosyl phenylalanyl chloromethyl ketone (TPCK)
Keywords keywordscystein protease, drug target, lysosome, virus cell entry, HYDROLASE; HYDROLASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier29.92
Radius of gyration Rg (electron density) rg_electron29.03
Forward intensity I(0) i0166283000.00
Molecular weight molecular_weight99264.0 kDa
Excluded volume excluded_volume122520 ų
Envelope volume envelope_volume145790 ų
Hydration-shell volume shell_volume41178 ų
Envelope diameter envelope_diameter95.5
Shell Rg shell_rg36.85
Envelope Rg envelope_rg28.89
Shape Rg shape_rg29.00
Total Rg total_rg29.79
Total atoms total_atoms6951
Residues n_residues864
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 dmax89.0
Rg (real space) rg_real29.75
Rg uncertainty (real space) rg_real_error0.43
I(0) (real space) i0_real1.6630e+08
I(0) uncertainty (real space) i0_real_error2.3670e+06
Rg (reciprocal space) rg_reciprocal29.83
I(0) (reciprocal space) i0_reciprocal166300000.0000
Solution quality estimate total_estimate0.9066
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary40.3
Skewness Skewness skewness0.092
Kurtosis Kurtosis kurtosis-0.573
Angular range angular_range— – 0.2650 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha41790000.0000
Real-space data points n_real_points54
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.971; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.991; Smooth: 0.879

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (10)

8. Citations (1)

9. Files and Curves (10)