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- PDB-1gpw: Structural evidence for ammonia tunneling across the (beta/alpha)... -
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Open data
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Basic information
Entry | Database: PDB / ID: 1gpw | |||||||||
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Title | Structural evidence for ammonia tunneling across the (beta/alpha)8 barrel of the imidazole glycerol phosphate synthase bienzyme complex. | |||||||||
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![]() | LYASE/TRANSFERASE / COMPLEX (LYASE-TRANSFERASE) / HISTIDINE BIOSYNTHESIS / GLUTAMINASE / GLUTAMINE AMIDOTRANSFERASE / CYCLASE / AMMONIA CHANNEL / LYASE-TRANSFERASE complex | |||||||||
Function / homology | ![]() imidazole glycerol-phosphate synthase / imidazoleglycerol-phosphate synthase activity / glutaminase / L-histidine biosynthetic process / glutaminase activity / lyase activity / cytoplasm Similarity search - Function | |||||||||
Biological species | ![]() ![]() | |||||||||
Method | ![]() ![]() ![]() | |||||||||
![]() | Walker, M. / Beismann-Driemeyer, S. / Sterner, R. / Wilmanns, M. | |||||||||
![]() | ![]() Title: Structural Evidence for Ammonia Tunneling Across the (Beta Alpha)(8) Barrel of the Imidazole Glycerol Phosphate Synthase Bienzyme Complex. Authors: Douangamath, A. / Walker, M. / Beismann-Driemeyer, S. / Vega-Fernandez, M.C. / Sterner, R. / Wilmanns, M. #1: Journal: J.Biol.Chem. / Year: 2001 Title: Imidazole Glycerol Phosphate Synthase from Thermotoga Maritima Authors: Beismann-Driemeyer, S. / Sterner, R. | |||||||||
History |
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Remark 700 | SHEET DETERMINATION METHOD: DSSP THE SHEETS PRESENTED AS "EA" IN EACH CHAIN ON SHEET RECORDS BELOW ... SHEET DETERMINATION METHOD: DSSP THE SHEETS PRESENTED AS "EA" IN EACH CHAIN ON SHEET RECORDS BELOW IS ACTUALLY AN 10-STRANDED BARREL THIS IS REPRESENTED BY A 11-STRANDED SHEET IN WHICH THE FIRST AND LAST STRANDS ARE IDENTICAL. THE SHEET STRUCTURE OF THIS MOLECULE IS BIFURCATED. IN ORDER TO REPRESENT THIS FEATURE IN THE SHEET RECORDS BELOW, TWO SHEETS ARE DEFINED. |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 282.5 KB | Display | ![]() |
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PDB format | ![]() | 228 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 415.9 KB | Display | ![]() |
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Full document | ![]() | 472.5 KB | Display | |
Data in XML | ![]() | 34.3 KB | Display | |
Data in CIF | ![]() | 53.2 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 1k9vC ![]() 1thfS 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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3 | ![]()
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Unit cell |
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Details | THE BIOLOGICALLY RELEVANT UNITS ARE THE FOLLOWING HETERODIMERS:HISF/HISH CHAIN A/CHAIN B , HISF/HISH CHAIN C/CHAIN D, HISF/HISHCHAIN E/ CHAIN F. THERE ARE SIGNIFICANT CONFORMATIONAL DIFFERENCESIN THE THREE HETERO-DIMERS, HENCE THEY CANNOT BE RELATED BYUNIQUE SETS OF NCS OPERATORS. |
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Components
#1: Protein | Mass: 27752.887 Da / Num. of mol.: 3 / Mutation: YES Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() #2: Protein | Mass: 23130.564 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() #3: Chemical | ChemComp-PO4 / #4: Water | ChemComp-HOH / | |
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-Experimental details
-Experiment
Experiment | Method: ![]() |
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Sample preparation
Crystal | Density Matthews: 2.81 Å3/Da / Density % sol: 56.17 % | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Crystal grow | pH: 8 Details: PROTEIN SOLUTION: 10 MM TRIS (PH 8.0), 1 MM DTT, 1 MM EDTA, 28.8 MG/ML PROTEIN COMPLEX. PRECIPITATE SOLUTION: 15 %[W/V] PEG-8000, 0.9 M AMMONIUM NITRATE, 0.1 M HEPES/HCL (PH 8.5), 10 MM DTT, 5% [V/V] MPD | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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: X-RAY RESEARCH / Detector: CCD / Details: BENT MIRROR |
Radiation | Monochromator: TRIANGULAR / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
Radiation wavelength | Wavelength: 0.88 Å / Relative weight: 1 |
Reflection | Resolution: 2.37→30 Å / Num. obs: 65356 / % possible obs: 96.7 % / Redundancy: 2.9 % / Biso Wilson estimate: 46.2 Å2 / Rmerge(I) obs: 0.048 / Net I/σ(I): 28 |
Reflection shell | Resolution: 2.37→2.45 Å / Redundancy: 2.5 % / Rmerge(I) obs: 0.168 / Mean I/σ(I) obs: 4.5 / % possible all: 78.8 |
Reflection | *PLUS Lowest resolution: 30 Å |
Reflection shell | *PLUS % possible obs: 78.8 % / Num. unique obs: 5485 |
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Processing
Software |
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Refinement | Method to determine structure: ![]() Starting model: 1THF Resolution: 2.4→30 Å / Rfactor Rfree error: 0.005 / Isotropic thermal model: RESTRAINED / Cross valid method: THROUGHOUT / σ(F): 0
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Solvent computation | Solvent model: FLAT MODEL / Bsol: 59.6192 Å2 / ksol: 0.320971 e/Å3 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Displacement parameters | Biso mean: 58.4 Å2
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Refine analyze |
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Refinement step | Cycle: LAST / Resolution: 2.4→30 Å
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Refine LS restraints |
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LS refinement shell | Resolution: 2.4→2.55 Å / Rfactor Rfree error: 0.018 / Total num. of bins used: 6
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Xplor file |
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Software | *PLUS Name: CNS / Version: 1 / Classification: refinement | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refinement | *PLUS Rfactor Rfree: 0.29 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Solvent computation | *PLUS | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Displacement parameters | *PLUS | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refine LS restraints | *PLUS
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