+Open data
-Basic information
Entry | Database: PDB / ID: 1a8r | ||||||
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Title | GTP CYCLOHYDROLASE I (H112S MUTANT) IN COMPLEX WITH GTP | ||||||
Components | GTP CYCLOHYDROLASE I | ||||||
Keywords | HYDROLASE / GTP / PURINE HYDROLYSIS / PTERINE SYNTHESIS | ||||||
Function / homology | Function and homology information GTP cyclohydrolase I / GTP cyclohydrolase I activity / : / tetrahydrobiopterin biosynthetic process / queuosine biosynthetic process / tetrahydrofolate biosynthetic process / one-carbon metabolic process / GTP binding / protein-containing complex / zinc ion binding ...GTP cyclohydrolase I / GTP cyclohydrolase I activity / : / tetrahydrobiopterin biosynthetic process / queuosine biosynthetic process / tetrahydrofolate biosynthetic process / one-carbon metabolic process / GTP binding / protein-containing complex / zinc ion binding / identical protein binding / cytosol / cytoplasm Similarity search - Function | ||||||
Biological species | Escherichia coli (E. coli) | ||||||
Method | X-RAY DIFFRACTION / SYNCHROTRON / Resolution: 2.1 Å | ||||||
Authors | Auerbach, G. / Nar, H. / Bracher, A. / Bacher, A. / Huber, R. | ||||||
Citation | Journal: J.Mol.Biol. / Year: 2003 Title: Biosynthesis of pteridines. Reaction mechanism of GTP cyclohydrolase I. Authors: Rebelo, J. / Auerbach, G. / Bader, G. / Bracher, A. / Nar, H. / Hosl, C. / Schramek, N. / Kaiser, J. / Bacher, A. / Huber, R. / Fischer, M. #1: Journal: Biol.Chem. / Year: 1997 Title: The Pathway from GTP to Tetrahydrobiopterin: Three-Dimensional Structures of GTP Cyclohydrolase I and 6-Pyruvoyl Tetrahydropterin Synthase Authors: Auerbach, G. / Nar, H. #2: Journal: Embo J. / Year: 1997 Title: The 1.25 A Crystal Structure of Sepiapterin Reductase Reveals its Binding Mode to Pterins and Brain Neurotransmitters Authors: Auerbach, G. / Herrmann, A. / Gutlich, M. / Fischer, M. / Jacob, U. / Bacher, A. / Huber, R. #3: Journal: Proc.Natl.Acad.Sci.USA / Year: 1995 Title: Active Site Topology and Reaction Mechanism of GTP Cyclohydrolase I Authors: Nar, H. / Huber, R. / Auerbach, G. / Fischer, M. / Hosl, C. / Ritz, H. / Bracher, A. / Meining, W. / Eberhardt, S. / Bacher, A. #4: Journal: Structure / Year: 1995 Title: Atomic Structure of GTP Cyclohydrolase I Authors: Nar, H. / Huber, R. / Meining, W. / Schmid, C. / Weinkauf, S. / Bacher, A. | ||||||
History |
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-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 1a8r.cif.gz | 666.3 KB | Display | PDBx/mmCIF format |
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PDB format | pdb1a8r.ent.gz | 550.7 KB | Display | PDB format |
PDBx/mmJSON format | 1a8r.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/a8/1a8r ftp://data.pdbj.org/pub/pdb/validation_reports/a8/1a8r | HTTPS FTP |
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-Related structure data
-Links
-Assembly
Deposited unit |
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Unit cell |
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Noncrystallographic symmetry (NCS) | NCS oper:
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-Components
#1: Protein | Mass: 24682.381 Da / Num. of mol.: 15 / Mutation: H112S Source method: isolated from a genetically manipulated source Source: (gene. exp.) Escherichia coli (E. coli) / Description: HOMOLOGOUS EXPRESSION / Organ: BRAIN / Production host: Escherichia coli (E. coli) / References: UniProt: P0A6T5, GTP cyclohydrolase I #2: Chemical | ChemComp-GTP / #3: Water | ChemComp-HOH / | |
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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: 3.07 Å3/Da / Density % sol: 60 % | ||||||||||||||||||||
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Crystal grow | pH: 7 / Details: pH 7.0 | ||||||||||||||||||||
Crystal | *PLUS | ||||||||||||||||||||
Crystal grow | *PLUS pH: 6 / 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: SYNCHROTRON / Site: MPG/DESY, HAMBURG / Beamline: BW6 / Wavelength: 1.1 |
Detector | Type: MARRESEARCH / Detector: IMAGE PLATE / Date: Jul 16, 1996 |
Radiation | Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
Radiation wavelength | Wavelength: 1.1 Å / Relative weight: 1 |
Reflection | Resolution: 2.1→25 Å / Num. obs: 238566 / % possible obs: 90.4 % / Observed criterion σ(I): 0 / Redundancy: 3.1 % / Biso Wilson estimate: 41.6 Å2 / Rmerge(I) obs: 0.085 |
Reflection shell | Resolution: 2.1→2.15 Å / Redundancy: 2.5 % / % possible all: 91.4 |
Reflection | *PLUS Num. measured all: 661363 |
-Processing
Software |
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Refinement | Resolution: 2.1→8 Å / σ(F): 0 /
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Displacement parameters | Biso mean: 39.9 Å2 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refinement step | Cycle: LAST / Resolution: 2.1→8 Å
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Refine LS restraints |
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Refine LS restraints NCS | NCS model details: RESTRAINTS | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Software | *PLUS Name: X-PLOR / Version: 3.8 / Classification: refinement | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refinement | *PLUS Num. reflection obs: 27375 / Rfactor obs: 0.2 / Rfactor Rwork: 0.2 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Solvent computation | *PLUS | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Displacement parameters | *PLUS |