+Open data
-Basic information
Entry | Database: PDB / ID: 1ecy | ||||||||||||
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Title | PROTEASE INHIBITOR ECOTIN | ||||||||||||
Components | ECOTIN | ||||||||||||
Keywords | PROTEASE INHIBITOR / BETA-SHEET STRUCTURE / SERINE PROTEASE INHIBITOR / PERIPLASMIC | ||||||||||||
Function / homology | Function and homology information serine-type endopeptidase inhibitor activity / outer membrane-bounded periplasmic space / protein homodimerization activity Similarity search - Function | ||||||||||||
Biological species | Escherichia coli (E. coli) | ||||||||||||
Method | X-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.19 Å | ||||||||||||
Authors | Shin, D.H. / Suh, S.W. | ||||||||||||
Citation | Journal: Protein Sci. / Year: 1996 Title: Crystal structure analyses of uncomplexed ecotin in two crystal forms: implications for its function and stability. Authors: Shin, D.H. / Song, H.K. / Seong, I.S. / Lee, C.S. / Chung, C.H. / Suh, S.W. #1: Journal: J.Mol.Biol. / Year: 1993 Title: Crystallization and Preliminary X-Ray Crystallographic Analysis of the Protease Inhibitor Ecotin Authors: Shin, D.H. / Hwang, K.Y. / Kim, K.K. / Lee, H.R. / Lee, C.S. / Chung, C.H. / Suh, S.W. | ||||||||||||
History |
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-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 1ecy.cif.gz | 52.1 KB | Display | PDBx/mmCIF format |
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PDB format | pdb1ecy.ent.gz | 39.2 KB | Display | PDB format |
PDBx/mmJSON format | 1ecy.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/ec/1ecy ftp://data.pdbj.org/pub/pdb/validation_reports/ec/1ecy | HTTPS FTP |
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-Related structure data
-Links
-Assembly
Deposited unit |
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1 |
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Unit cell |
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-Components
-Protein / Non-polymers , 2 types, 81 molecules A
#1: Protein | Mass: 16120.507 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Details: ESCHERICHIA COLI PROTEASE INHIBITOR / Source: (gene. exp.) Escherichia coli (E. coli) / Plasmid: PBS / Gene (production host): ETI GENE / Production host: Escherichia coli (E. coli) / References: UniProt: P23827 |
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#6: Water | ChemComp-HOH / |
-Sugars , 4 types, 18 molecules
#2: Polysaccharide | alpha-D-glucopyranose-(1-1)-alpha-D-glucopyranose / #3: Polysaccharide | alpha-D-glucopyranose-(1-1)-alpha-D-glucopyranose / #4: Sugar | ChemComp-GLC / #5: Sugar | ChemComp-BGC / | |
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-Experimental details
-Experiment
Experiment | Method: X-RAY DIFFRACTION / Number of used crystals: 1 |
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-Sample preparation
Crystal | Density Matthews: 2.62 Å3/Da / Density % sol: 53.1 % | ||||||||||||||||||||||||||||||||||||||||
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Crystal grow | *PLUS Temperature: 22.5-23.5 ℃ / pH: 8.5 / Method: vapor diffusion, hanging drop | ||||||||||||||||||||||||||||||||||||||||
Components of the solutions | *PLUS
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-Data collection
Diffraction | Mean temperature: 287 K |
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Diffraction source | Source: SYNCHROTRON / Site: Photon Factory / Beamline: BL-6A / Wavelength: 1 |
Detector | Type: FUJI / Detector: IMAGE PLATE / Date: Jun 24, 1994 |
Radiation | Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
Radiation wavelength | Wavelength: 1 Å / Relative weight: 1 |
Reflection | Resolution: 2.19→84 Å / Num. obs: 8537 / % possible obs: 91.6 % / Observed criterion σ(I): 3 / Redundancy: 7.9 % / Rmerge(I) obs: 0.073 |
Reflection shell | Resolution: 2.19→2.29 Å / % possible all: 73.2 |
Reflection shell | *PLUS % possible obs: 73.2 % |
-Processing
Software |
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Refinement | Method to determine structure: MOLECULAR REPLACEMENT Starting model: ECOTIN PART OF ECOTIN-TRYPSIN COMPLEX Resolution: 2.19→6 Å / σ(F): 2
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Displacement parameters | Biso mean: 36 Å2 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refinement step | Cycle: LAST / Resolution: 2.19→6 Å
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Refine LS restraints |
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Software | *PLUS Name: X-PLOR / Version: 3.1 / Classification: refinement | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refine LS restraints | *PLUS
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