3k24

Crystal structure of mature apo-Cathepsin L C25A mutant in complex with Gln-Leu-Ala peptide

Method: X-RAY DIFFRACTION Dmax: 72.4 Å Quality: EXCELLENT

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

Cathepsin L1

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 heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 114–333 Fragment:mC25A: UNP residues 114-333 Mutation:C138A H3 peptide × 1 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 4;293 K;10% Isopropanol, 0.1 M Sodium acetate trihydrate pH 4.0, 22% PEG 6000, VAPOR DIFFUSION, SITTING DROP, temperature 293K Resolution 2.50 Å R-free 0.270
2 Other combination Heteromer Protein × 2 其他Polymer 1 PDB declaration: dimeric(2) Consistent with protein copy count Chain B; UniProt 114–333 Fragment:mC25A: UNP residues 114-333 Mutation:C138A H3 peptide × 1 ;2-acetamido-2-deoxy-alpha-D-glucopyranose-(1-6)-beta-D-mannopyranose-(1-6)-[alpha-D-mannopyranose-(1-2)]alpha-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-alpha-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose ; × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 4;293 K;10% Isopropanol, 0.1 M Sodium acetate trihydrate pH 4.0, 22% PEG 6000, VAPOR DIFFUSION, SITTING DROP, temperature 293K Resolution 2.50 Å R-free 0.270

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 155 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

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 3k24

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 3k24
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2. Structure Basics 2. Structure Basics

Entry ID entry_id3k24
Deposition date deposition_date2009-09-29
Structure title titleCrystal structure of mature apo-Cathepsin L C25A mutant in complex with Gln-Leu-Ala peptide
Keywords keywordsco-crystal, substrate, protease, Structural Genomics, Structural Genomics Consortium, SGC, HYDROLASE; HYDROLASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier23.95
Radius of gyration Rg (electron density) rg_electron22.71
Forward intensity I(0) i045666900.00
Molecular weight molecular_weight50184.0 kDa
Excluded volume excluded_volume61709 ų
Envelope volume envelope_volume74178 ų
Hydration-shell volume shell_volume26851 ų
Envelope diameter envelope_diameter74.6
Shell Rg shell_rg29.78
Envelope Rg envelope_rg22.83
Shape Rg shape_rg22.67
Total Rg total_rg23.61
Total atoms total_atoms3525
Residues n_residues446
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 dmax72.4
Rg (real space) rg_real23.81
Rg uncertainty (real space) rg_real_error0.45
I(0) (real space) i0_real4.5670e+07
I(0) uncertainty (real space) i0_real_error6.1510e+05
Rg (reciprocal space) rg_reciprocal23.84
I(0) (reciprocal space) i0_reciprocal45670000.0000
Solution quality estimate total_estimate0.9139
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary28.3
Skewness Skewness skewness0.105
Kurtosis Kurtosis kurtosis-0.646
Angular range angular_range— – 0.3300 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha8444000.0000
Real-space data points n_real_points65
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.964; Stabil: 0.999; Sysdev: 1.000; Positv: 1.000; Valcen: 0.997; Smooth: 0.990

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (5)

7. Fold Classification (SCOP + CATH) 2 domains

CATH v4.4 (2 domains)

Domain ID domain_id3k24A00
Class class3 — Alpha Beta
Architecture architecture90 — Alpha-Beta Complex
Topology topology70 — Cathepsin B; Chain A
Homologous superfamily homologous superfamily10 — Cysteine proteinases
Domain ID domain_id3k24B00
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)