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- PDB-1tmm: Crystal structure of ternary complex of E.coli HPPK(W89A) with MG... -
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Basic information
Entry | Database: PDB / ID: 1tmm | ||||||
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Title | Crystal structure of ternary complex of E.coli HPPK(W89A) with MGAMPCPP and 6-Hydroxymethylpterin | ||||||
![]() | 2-amino-4-hydroxy-6-hydroxymethyldihydropteridine pyrophosphokinase | ||||||
![]() | TRANSFERASE / PYROPHOSPHOKINASE / PYROPHOSPHORYL TRANSFER / CATALYTIC MECHANISM / FOLATE / HPPK / PTERIN / 6-HYDROXYMETHYL-7 / 8-DIHYDROPTERIN / 6-HYDROXYMETHYLPTERIN / TERNARY COMPLEX / SUBSTRATE SPECIFICITY / PRODUCT RELEASE / ANTIMICROBIAL AGENT / DRUG DESIGN | ||||||
Function / homology | ![]() 2-amino-4-hydroxy-6-hydroxymethyldihydropteridine diphosphokinase / 2-amino-4-hydroxy-6-hydroxymethyldihydropteridine diphosphokinase activity / folic acid biosynthetic process / tetrahydrofolate biosynthetic process / kinase activity / phosphorylation / magnesium ion binding / ATP binding Similarity search - Function | ||||||
Biological species | ![]() ![]() | ||||||
Method | ![]() ![]() ![]() | ||||||
![]() | Blaszczyk, J. / Li, Y. / Wu, Y. / Shi, G. / Ji, X. / Yan, H. | ||||||
![]() | ![]() Title: Is the Critical Role of Loop 3 of Escherichia coli 6-Hydroxymethyl-7,8-dihydropterin Pyrophosphokinase in Catalysis Due to Loop-3 Residues Arginine-84 and Tryptophan-89? Site-Directed ...Title: Is the Critical Role of Loop 3 of Escherichia coli 6-Hydroxymethyl-7,8-dihydropterin Pyrophosphokinase in Catalysis Due to Loop-3 Residues Arginine-84 and Tryptophan-89? Site-Directed Mutagenesis, Biochemical, and Crystallographic Studies. Authors: Li, Y. / Blaszczyk, J. / Wu, Y. / Shi, G. / Ji, X. / Yan, H. #1: ![]() Title: Crystal Structure of 6-Hydroxymethyl-7,8-Dihydropterin Pyrophosphokinase, a Potential Target for the Development of Novel Antimicrobial Agents Authors: Xiao, B. / Shi, G. / Chen, X. / Yan, H. / Ji, X. #2: ![]() Title: Catalytic Center Assembly of Hppk as Revealed by the Crystal Structure of a Ternary Complex at 1.25 A Resolution Authors: Blaszczyk, J. / Shi, G. / Yan, H. / Ji, X. #3: ![]() Title: Bisubstrate Analogue Inhibitors of 6-Hydroxymethyl-7,8-Dihydropterin Pyrophosphokinase: Synthesis and Biochemical and Crystallographic Studies Authors: Shi, G. / Blaszczyk, J. / Ji, X. / Yan, H. | ||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 182.1 KB | Display | ![]() |
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PDB format | ![]() | 140.4 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 1.2 MB | Display | ![]() |
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Full document | ![]() | 1.2 MB | Display | |
Data in XML | ![]() | 25 KB | Display | |
Data in CIF | ![]() | 36.9 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 1tmjC ![]() 1q0nS ![]() 1f9y 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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2 | ![]()
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Unit cell |
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Components
-Protein , 1 types, 2 molecules AB
#1: Protein | Mass: 17851.402 Da / Num. of mol.: 2 / Mutation: W89A Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() References: UniProt: P26281, 2-amino-4-hydroxy-6-hydroxymethyldihydropteridine diphosphokinase |
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-Non-polymers , 7 types, 670 molecules ![](data/chem/img/MG.gif)
![](data/chem/img/CL.gif)
![](data/chem/img/ACT.gif)
![](data/chem/img/APC.gif)
![](data/chem/img/HHR.gif)
![](data/chem/img/GOL.gif)
![](data/chem/img/HOH.gif)
![](data/chem/img/CL.gif)
![](data/chem/img/ACT.gif)
![](data/chem/img/APC.gif)
![](data/chem/img/HHR.gif)
![](data/chem/img/GOL.gif)
![](data/chem/img/HOH.gif)
#2: Chemical | ChemComp-MG / #3: Chemical | #4: Chemical | ChemComp-ACT / #5: Chemical | #6: Chemical | #7: Chemical | #8: Water | ChemComp-HOH / | |
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-Experimental details
-Experiment
Experiment | Method: ![]() |
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Sample preparation
Crystal | Density Matthews: 1.88 Å3/Da / Density % sol: 24.5 % |
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Crystal grow | Temperature: 292 K / pH: 4.6 Details: PEG4000, MAGNESIUM CHLORIDE, ACETATE, GLYCEROL, pH 4.6, VAPOR DIFFUSION, HANGING DROP, temperature 292.0K, pH 4.60 |
-Data collection
Diffraction | Mean temperature: 100 K |
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Diffraction source | Source: ![]() ![]() ![]() |
Detector | Type: ADSC QUANTUM 4 / Detector: CCD / Date: Oct 2, 2000 / Details: MIRROR |
Radiation | Monochromator: SILICON 111 / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
Radiation wavelength | Wavelength: 0.97793 Å / Relative weight: 1 |
Reflection | Resolution: 1.25→30 Å / Num. obs: 85986 / % possible obs: 99.8 % / Observed criterion σ(I): 0 / Redundancy: 4.037 % / Biso Wilson estimate: 14.4 Å2 / Rmerge(I) obs: 0.078 / Net I/σ(I): 16.8 |
Reflection shell | Resolution: 1.25→1.29 Å / Redundancy: 3.47 % / Rmerge(I) obs: 0.602 / Mean I/σ(I) obs: 2 / % possible all: 99.3 |
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Processing
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Refinement | Method to determine structure: ![]() Starting model: PDB 1Q0N Resolution: 1.25→30 Å / Num. parameters: 26939 / Num. restraintsaints: 34724 / Cross valid method: FREE R / σ(F): 4 / Stereochemistry target values: ENGH AND HUBER Details: FULL MATRIX LEAST-SQUARES PROCEDURE, WITH BLOCK OF PARAMETERS SET FOR EACH CYCLE OF INISOTROPIC REFINEMENT
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Displacement parameters | Biso mean: 16.7 Å2 | ||||||||||||||||||||||||||||||||||||||||
Refine analyze | Luzzati coordinate error obs: 0.137 Å / Luzzati d res low obs: 5 Å / Num. disordered residues: 14 / Occupancy sum hydrogen: 2430 / Occupancy sum non hydrogen: 3294.5 | ||||||||||||||||||||||||||||||||||||||||
Refinement step | Cycle: LAST / Resolution: 1.25→30 Å
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Refine LS restraints |
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LS refinement shell |
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