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Open data
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Basic information
Entry | Database: PDB / ID: 2gez | ||||||
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Title | Crystal structure of potassium-independent plant asparaginase | ||||||
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![]() | HYDROLASE / isoaspartyl aminopeptidase / L-asparaginase / Ntn-hydrolase / autoproteolysis / taspase / sodium binding | ||||||
Function / homology | ![]() beta-aspartyl-peptidase / beta-aspartyl-peptidase activity / proteolysis Similarity search - Function | ||||||
Biological species | ![]() ![]() | ||||||
Method | ![]() ![]() ![]() | ||||||
![]() | Michalska, K. / Bujacz, G. / Jaskolski, M. | ||||||
![]() | ![]() Title: Crystal structure of plant asparaginase. Authors: Michalska, K. / Bujacz, G. / Jaskolski, M. #1: ![]() Title: Expression, purification and catalytic activity of Lupinus luteus asparagine beta-amidohydrolase and its Escherichia coli homolog. Authors: Borek, D. / Michalska, K. / Brzezinski, K. / Kisiel, A. / Podkowinski, J. / Bonthron, T.D. / Krowarsch, D. / Otlewski, J. / Jaskolski, M. #2: ![]() Title: Crystal structure of isoaspartyl aminopeptidase in complex with L-aspartate. Authors: Michalska, K. / Brzezinski, K. / Jaskolski, M. #3: ![]() Title: Crystallization and preliminary crystallographic studies of a new L-asparaginase encoded by the Escherichia coli genome. Authors: Borek, D. / Jaskolski, M. #4: ![]() Title: Structure of the isoaspartyl peptidase with L-asparaginase activity from Escherichia coli. Authors: Prahl, A. / Pazgier, M. / Hejazi, M. / Lockau, W. / Lubkowski, J. #5: ![]() Title: A protein catalytic framework with an N-terminal nucleophile is capable of self-activation. Authors: Brannigan, J.A. / Dodson, G. / Duggleby, H.J. / Moody, P.C. / Smith, J.L. / Tomchick, D.R. / Murzin, A.G. #6: ![]() Title: Three-dimensional structure of human lysosomal aspartylglucosaminidase. Authors: Oinonen, C. / Tikkanen, R. / Rouvinen, J. / Peltonen, L. #7: ![]() Title: Crystal structures of Flavobacterium glycosylasparaginase. An N-terminal nucleophile hydrolase activated by intramolecular proteolysis. Authors: Guo, H.C. / Xu, Q. / Buckley, D. / Guan, C. #8: ![]() Title: Crystal structure of human Taspase1, a crucial protease regulating the function of MLL. Authors: Khan, J.A. / Dunn, B.M. / Tong, L. | ||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 225.9 KB | Display | ![]() |
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PDB format | ![]() | 179.9 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 484 KB | Display | ![]() |
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Full document | ![]() | 499.6 KB | Display | |
Data in XML | ![]() | 41.6 KB | Display | |
Data in CIF | ![]() | 58.3 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 1k2xS S: Starting model for refinement |
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Similar structure data |
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Links
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Assembly
Deposited unit | ![]()
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2 | ![]()
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Unit cell |
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Details | The asymmetric unit contains two biological assemblies. Each of them is an (alpha/beta)2 heterotetramer or a dimer of (alpha/beta) heterodimers. Subunits alpha (chains A, C, E, G) and beta (chains B, D, F, H) are, respectively, the N- and C-terminal products of autoproteolytic cleavage of a precursor. |
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Components
#1: Protein | Mass: 21165.877 Da / Num. of mol.: 4 / Fragment: N-terminal subunit (residues 1-192) Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() #2: Protein | Mass: 13617.478 Da / Num. of mol.: 4 / Fragment: C-terminal subunit (residues 193-325) Source method: isolated from a genetically manipulated source Details: Subunits alpha (chains A, C, E, G) and beta (chains B, D, F, H) are, respectively, the N- and C-terminal products of autoproteolytic cleavage of a precursor Source: (gene. exp.) ![]() ![]() ![]() ![]() #3: Chemical | ChemComp-NA / #4: Chemical | ChemComp-CL / #5: Water | ChemComp-HOH / | |
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-Experimental details
-Experiment
Experiment | Method: ![]() |
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Sample preparation
Crystal | Density Matthews: 2.11 Å3/Da / Density % sol: 41.77 % |
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Crystal grow | Temperature: 292 K / Method: vapor diffusion, hanging drop / pH: 6.5 Details: 20% PEG 4000, 100 mM HEPES, 200 mM MgCl2, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 292.0K |
-Data collection
Diffraction | Mean temperature: 100 K |
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Diffraction source | Source: ![]() ![]() ![]() |
Detector | Type: MARRESEARCH / Detector: CCD / Date: Mar 5, 2004 |
Radiation | Monochromator: Triangular monochromator / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
Radiation wavelength | Wavelength: 0.81 Å / Relative weight: 1 |
Reflection | Resolution: 2.6→25 Å / Num. all: 34621 / Num. obs: 34621 / % possible obs: 99 % / Observed criterion σ(F): 0 / Observed criterion σ(I): -3 / Redundancy: 2.8 % / Biso Wilson estimate: 40.9 Å2 / Rmerge(I) obs: 0.073 / Net I/σ(I): 14.3 |
Reflection shell | Resolution: 2.6→2.69 Å / Redundancy: 2.5 % / Rmerge(I) obs: 0.152 / Mean I/σ(I) obs: 6.1 / Num. unique all: 3371 / % possible all: 96.9 |
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Processing
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Refinement | Method to determine structure: ![]() Starting model: PDB ENTRY 1K2X Resolution: 2.6→25 Å / Cor.coef. Fo:Fc: 0.933 / Cor.coef. Fo:Fc free: 0.883 / SU B: 22.964 / SU ML: 0.234 / TLS residual ADP flag: LIKELY RESIDUAL / Isotropic thermal model: isotropic / Cross valid method: THROUGHOUT / σ(F): 0 / ESU R Free: 0.349 / Stereochemistry target values: Engh & Huber
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Solvent computation | Ion probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: BABINET MODEL WITH MASK | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Displacement parameters | Biso mean: 25.11 Å2
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Refinement step | Cycle: LAST / Resolution: 2.6→25 Å
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Refine LS restraints |
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LS refinement shell | Highest resolution: 2.6 Å / Num. reflection Rwork: 4685 / Total num. of bins used: 10 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refinement TLS params. | Method: refined / Refine-ID: X-RAY DIFFRACTION
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Refinement TLS group |
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