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Yorodumi- PDB-4k1e: Atomic resolution crystal structures of Kallikrein-Related Peptid... -
+Open data
-Basic information
Entry | Database: PDB / ID: 4k1e | ||||||
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Title | Atomic resolution crystal structures of Kallikrein-Related Peptidase 4 complexed with a modified SFTI inhibitor FCQR | ||||||
Components |
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Keywords | HYDROLASE/HYDROLASE INHIBITOR / Protein-peptide complex / Bowman-Birk Inhibitor / Protease / Protease inhibitor / HYDROLASE-HYDROLASE INHIBITOR complex | ||||||
Function / homology | Function and homology information biomineral tissue development / amelogenesis / negative regulation of endopeptidase activity / endopeptidase inhibitor activity / Hydrolases; Acting on peptide bonds (peptidases); Serine endopeptidases / extracellular matrix disassembly / serine-type peptidase activity / secretory granule / serine-type endopeptidase inhibitor activity / protease binding ...biomineral tissue development / amelogenesis / negative regulation of endopeptidase activity / endopeptidase inhibitor activity / Hydrolases; Acting on peptide bonds (peptidases); Serine endopeptidases / extracellular matrix disassembly / serine-type peptidase activity / secretory granule / serine-type endopeptidase inhibitor activity / protease binding / serine-type endopeptidase activity / proteolysis / extracellular region / metal ion binding Similarity search - Function | ||||||
Biological species | Homo sapiens (human) Helianthus annuus (common sunflower) | ||||||
Method | X-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.3 Å | ||||||
Authors | Ilyichova, O.V. / Swedberg, J.E. / de Veer, S.J. / Sit, K.C. / Harris, J.M. / Buckle, A.M. | ||||||
Citation | Journal: Sci Rep / Year: 2016 Title: Direct and indirect mechanisms of KLK4 inhibition revealed by structure and dynamics Authors: Riley, B.T. / Ilyichova, O. / Costa, M.G.S. / Porebski, B.T. / de Veer, S.J. / Swedberg, J.E. / Kass, I. / Harris, J.M. / Hoke, D.E. / Buckle, A.M. | ||||||
History |
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-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 4k1e.cif.gz | 105.9 KB | Display | PDBx/mmCIF format |
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PDB format | pdb4k1e.ent.gz | 79.1 KB | Display | PDB format |
PDBx/mmJSON format | 4k1e.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/k1/4k1e ftp://data.pdbj.org/pub/pdb/validation_reports/k1/4k1e | HTTPS FTP |
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-Related structure data
Related structure data | 4k8yC 4kgaC 2bdgS S: Starting model for refinement C: citing same article (ref.) |
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Similar structure data |
-Links
-Assembly
Deposited unit |
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1 |
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Unit cell |
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-Components
#1: Protein | Mass: 23926.010 Da / Num. of mol.: 1 / Fragment: Related Peptidase 4, UNP residues 31-253 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: KLK4 / Plasmid: pET12-proPSA-hK4 / Production host: Escherichia coli (E. coli) / Strain (production host): BL21(DE3) References: UniProt: Q9Y5K2, Hydrolases; Acting on peptide bonds (peptidases); Serine endopeptidases |
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#2: Protein/peptide | Type: PolypeptidePeptide / Class: Trypsin inhibitor / Mass: 1580.848 Da / Num. of mol.: 1 / Mutation: modified FCQR / Source method: obtained synthetically / Details: Modified Sunflower Trypsin Inhibitor / Source: (synth.) Helianthus annuus (common sunflower) / References: UniProt: Q4GWU5, Trypsin inhibitor 1 |
#3: Chemical | ChemComp-MPD / ( |
#4: Chemical | ChemComp-LI / |
#5: Water | ChemComp-HOH / |
Sequence details | THIS SEQUENCE IS NATURAL VARIANT (VARIANT RS2569527) |
-Experimental details
-Experiment
Experiment | Method: X-RAY DIFFRACTION / Number of used crystals: 1 |
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-Sample preparation
Crystal | Density Matthews: 1.83 Å3/Da / Density % sol: 32.88 % |
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Crystal grow | Temperature: 293 K / Method: vapor diffusion, hanging drop / pH: 4.6 Details: 0.1M lithium sulfate, 0.1M sodium acetate, 30% PEG 8000 , pH 4.6, VAPOR DIFFUSION, HANGING DROP, temperature 293K |
-Data collection
Diffraction | Mean temperature: 100 K | |||||||||||||||||||||
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Diffraction source | Source: SYNCHROTRON / Site: Australian Synchrotron / Beamline: MX2 / Wavelength: 0.95369 Å | |||||||||||||||||||||
Detector | Type: ADSC QUANTUM 315r / Detector: CCD / Date: Apr 1, 2011 | |||||||||||||||||||||
Radiation | Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray | |||||||||||||||||||||
Radiation wavelength | Wavelength: 0.95369 Å / Relative weight: 1 | |||||||||||||||||||||
Reflection | Resolution: 1.12→37.12 Å / Num. obs: 70424 / % possible obs: 99.7 % / Observed criterion σ(I): -3 / Redundancy: 3.5 % / Biso Wilson estimate: 7.229 Å2 / Rmerge(I) obs: 0.107 / Rsym value: 0.107 / Net I/σ(I): 7.2 | |||||||||||||||||||||
Reflection shell |
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-Processing
Software |
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Refinement | Method to determine structure: MOLECULAR REPLACEMENT Starting model: PDB ENTRY 2BDG Resolution: 1.3→37.12 Å / Occupancy max: 1 / Occupancy min: 0.27 / FOM work R set: 0.9152 / SU ML: 0.09 / σ(F): 1.36 / Phase error: 15.4 / Stereochemistry target values: MLHL
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Solvent computation | Shrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å / Solvent model: FLAT BULK SOLVENT MODEL | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Displacement parameters | Biso max: 47.4 Å2 / Biso mean: 13.144 Å2 / Biso min: 3.99 Å2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refinement step | Cycle: LAST / Resolution: 1.3→37.12 Å
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Refine LS restraints |
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LS refinement shell | Refine-ID: X-RAY DIFFRACTION / Total num. of bins used: 16
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