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Open data
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Basic information
Entry | Database: PDB / ID: 1ktc | |||||||||
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Title | The Structure of alpha-N-Acetylgalactosaminidase | |||||||||
![]() | alpha-N-acetylgalactosaminidase | |||||||||
![]() | HYDROLASE / glycoprotein / (beta/alpha)8 barrel / protein-ligand complex | |||||||||
Function / homology | ![]() alpha-N-acetylgalactosaminidase / alpha-N-acetylgalactosaminidase activity / alpha-galactosidase activity / oligosaccharide metabolic process / glycoside catabolic process / lipid metabolic process / lysosome / cytoplasm Similarity search - Function | |||||||||
Biological species | ![]() ![]() | |||||||||
Method | ![]() ![]() ![]() | |||||||||
![]() | Garman, S.C. / Hannick, L. / Zhu, A. / Garboczi, D.N. | |||||||||
![]() | ![]() Title: The 1.9 A structure of alpha-N-acetylgalactosaminidase: molecular basis of glycosidase deficiency diseases. Authors: Garman, S.C. / Hannick, L. / Zhu, A. / Garboczi, D.N. | |||||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 101.6 KB | Display | ![]() |
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PDB format | ![]() | 76.8 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 789.4 KB | Display | ![]() |
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Full document | ![]() | 796 KB | Display | |
Data in XML | ![]() | 21.8 KB | Display | |
Data in CIF | ![]() | 31.2 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 1ktbSC S: Starting model for refinement C: citing same article ( |
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Similar structure data |
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Links
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Assembly
Deposited unit | ![]()
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1 | ![]()
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Unit cell |
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Components on special symmetry positions |
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Components
-Protein , 1 types, 1 molecules A
#1: Protein | Mass: 45585.121 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Details: Complex with alpha-N-acetylgalactosamine / Source: (gene. exp.) ![]() ![]() ![]() References: PIR: S43413, UniProt: Q90744*PLUS, alpha-N-acetylgalactosaminidase |
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-Sugars , 3 types, 4 molecules ![](data/chem/img/NAG.gif)
![](data/chem/img/NGA.gif)
![](data/chem/img/NGA.gif)
#2: Polysaccharide | 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose Source method: isolated from a genetically manipulated source | ||
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#3: Sugar | #4: Sugar | ChemComp-NGA / | |
-Non-polymers , 4 types, 322 molecules ![](data/chem/img/SO4.gif)
![](data/chem/img/GOL.gif)
![](data/chem/img/ACY.gif)
![](data/chem/img/HOH.gif)
![](data/chem/img/GOL.gif)
![](data/chem/img/ACY.gif)
![](data/chem/img/HOH.gif)
#5: Chemical | ChemComp-SO4 / #6: Chemical | ChemComp-GOL / #7: Chemical | #8: Water | ChemComp-HOH / | |
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-Experimental details
-Experiment
Experiment | Method: ![]() |
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Sample preparation
Crystal | Density Matthews: 2.3 Å3/Da / Density % sol: 43 % | ||||||||||||||||||||||||
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Crystal grow | Temperature: 293 K / Method: vapor diffusion, hanging drop / pH: 5.6 Details: lithium sulfate, ammonium sulfate, sodium acetate, pH 5.6, VAPOR DIFFUSION, HANGING DROP at 293K | ||||||||||||||||||||||||
Crystal grow | *PLUS Method: vapor diffusion | ||||||||||||||||||||||||
Components of the solutions | *PLUS
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-Data collection
Diffraction | Mean temperature: 100 K |
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Diffraction source | Source: ![]() ![]() ![]() |
Detector | Type: ADSC QUANTUM 4 / Detector: CCD / Date: Oct 15, 1999 |
Radiation | Monochromator: synchrotron optics / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
Radiation wavelength | Wavelength: 1.054 Å / Relative weight: 1 |
Reflection | Resolution: 2.4→50 Å / Num. all: 19336 / Num. obs: 19336 / % possible obs: 99.4 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0 / Redundancy: 3.6 % / Biso Wilson estimate: 28.7 Å2 / Rmerge(I) obs: 0.054 / Rsym value: 0.054 / Net I/σ(I): 15.6 |
Reflection shell | Resolution: 2.4→2.49 Å / Redundancy: 3.5 % / Rmerge(I) obs: 0.379 / Mean I/σ(I) obs: 4.1 / Num. unique all: 1875 / Rsym value: 0.379 / % possible all: 99.8 |
Reflection | *PLUS Highest resolution: 2.4 Å / Lowest resolution: 50 Å / Num. measured all: 68982 |
Reflection shell | *PLUS % possible obs: 99.8 % / Num. unique obs: 1875 / Num. measured obs: 6503 |
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Processing
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Refinement | Method to determine structure: ![]() Starting model: 1KTB Resolution: 2.4→30.99 Å / Rfactor Rfree error: 0.008 / Data cutoff high absF: 2189198.81 / Data cutoff low absF: 0 / Isotropic thermal model: RESTRAINED / Cross valid method: THROUGHOUT / σ(F): 0 / Stereochemistry target values: Engh & Huber
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Solvent computation | Solvent model: FLAT MODEL / Bsol: 41.0978 Å2 / ksol: 0.342766 e/Å3 | ||||||||||||||||||||||||||||||||||||
Displacement parameters | Biso mean: 34.1 Å2
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Refine analyze |
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Refinement step | Cycle: LAST / Resolution: 2.4→30.99 Å
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Refine LS restraints |
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LS refinement shell | Resolution: 2.4→2.55 Å / Rfactor Rfree error: 0.023 / Total num. of bins used: 6
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Xplor file |
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Refinement | *PLUS Highest resolution: 2.4 Å / Lowest resolution: 50 Å | ||||||||||||||||||||||||||||||||||||
Solvent computation | *PLUS | ||||||||||||||||||||||||||||||||||||
Displacement parameters | *PLUS | ||||||||||||||||||||||||||||||||||||
Refine LS restraints | *PLUS
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