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Yorodumi- PDB-1ibt: STRUCTURE OF THE D53,54N MUTANT OF HISTIDINE DECARBOXYLASE AT-170 C -
+Open data
-Basic information
Entry | Database: PDB / ID: 1ibt | |||||||||
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Title | STRUCTURE OF THE D53,54N MUTANT OF HISTIDINE DECARBOXYLASE AT-170 C | |||||||||
Components |
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Keywords | LYASE / HELIX DISORDER / LESS ACTIVE FORM / SITE-DIRECTED MUTANT / PYRUVOYL / CARBOXY-LYASE | |||||||||
Function / homology | Function and homology information histidine decarboxylase / histidine decarboxylase activity / L-histidine metabolic process / amino acid metabolic process Similarity search - Function | |||||||||
Biological species | Lactobacillus sp. (bacteria) | |||||||||
Method | X-RAY DIFFRACTION / MOLECULAR REPLACEMENT / Resolution: 2.6 Å | |||||||||
Authors | Worley, S. / Schelp, E. / Monzingo, A.F. / Ernst, S. / Robertus, J.D. | |||||||||
Citation | Journal: Proteins / Year: 2002 Title: Structure and cooperativity of a T-state mutant of histidine decarboxylase from Lactobacillus 30a. Authors: Worley, S. / Schelp, E. / Monzingo, A.F. / Ernst, S. / Robertus, J.D. | |||||||||
History |
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-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 1ibt.cif.gz | 188.6 KB | Display | PDBx/mmCIF format |
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PDB format | pdb1ibt.ent.gz | 150.6 KB | Display | PDB format |
PDBx/mmJSON format | 1ibt.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/ib/1ibt ftp://data.pdbj.org/pub/pdb/validation_reports/ib/1ibt | HTTPS FTP |
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-Related structure data
Related structure data | 1ibuC 1ibvC 1ibwC 1pyaS S: Starting model for refinement C: citing same article (ref.) |
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Similar structure data |
-Links
-Assembly
Deposited unit |
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1 |
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2 |
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Unit cell |
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Details | The biological assembly is a hexamer generated by applying a crystallographic two-fold to the trimer in the asymmetric unit: -x, y, -z + 1/2 |
-Components
#1: Protein | Mass: 8848.862 Da / Num. of mol.: 3 / Fragment: BETA CHAIN (RESIDUES 1-81) / Mutation: D53N, D54N Source method: isolated from a genetically manipulated source Source: (gene. exp.) Lactobacillus sp. (bacteria) / Strain: 30A / Gene: HDCA / Production host: Escherichia coli (E. coli) / References: UniProt: P00862, histidine decarboxylase #2: Protein | Mass: 25285.375 Da / Num. of mol.: 3 / Fragment: ALPHA CHAIN (RESIDUES 82-310) Source method: isolated from a genetically manipulated source Source: (gene. exp.) Lactobacillus sp. (bacteria) / Strain: 30A / Gene: HDCA / Production host: Escherichia coli (E. coli) / References: UniProt: P00862, histidine decarboxylase #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: 2.74 Å3/Da / Density % sol: 55.11 % | ||||||||||||||||||||||||||||||
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Crystal grow | Temperature: 298 K / Method: vapor diffusion, hanging drop / pH: 4.6 Details: PEG 400, PEG 4000, sodium acetate, pH 4.6, VAPOR DIFFUSION, HANGING DROP, temperature 298K | ||||||||||||||||||||||||||||||
Crystal grow | *PLUS | ||||||||||||||||||||||||||||||
Components of the solutions | *PLUS
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-Data collection
Diffraction | Mean temperature: 103 K |
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Diffraction source | Source: ROTATING ANODE / Type: RIGAKU RU200 / Wavelength: 1.5418 |
Detector | Type: RIGAKU RAXIS IV / Detector: IMAGE PLATE / Date: Mar 1, 1999 |
Radiation | Monochromator: DOUBLE FOCUSSING MIRRORS (NI & PT) + NI FILTER Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
Radiation wavelength | Wavelength: 1.5418 Å / Relative weight: 1 |
Reflection | Resolution: 2.58→100 Å / Num. all: 34308 / Num. obs: 34308 / % possible obs: 97 % / Observed criterion σ(I): 0 / Redundancy: 2.7 % / Biso Wilson estimate: 57.2 Å2 / Rmerge(I) obs: 0.089 / Net I/σ(I): 14.1 |
Reflection shell | Resolution: 2.58→2.67 Å / Redundancy: 2.6 % / Rmerge(I) obs: 0.389 / % possible all: 90.5 |
Reflection | *PLUS Highest resolution: 2.6 Å / Lowest resolution: 100 Å / Redundancy: 2.7 % |
Reflection shell | *PLUS Mean I/σ(I) obs: 2.4 |
-Processing
Software |
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Refinement | Method to determine structure: MOLECULAR REPLACEMENT Starting model: PDB ENTRY 1PYA Resolution: 2.6→20 Å / Cross valid method: THROUGHOUT / σ(F): 3 / Stereochemistry target values: ENGH & HUBER
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Refinement step | Cycle: LAST / Resolution: 2.6→20 Å
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Refine LS restraints |
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Refinement | *PLUS Lowest resolution: 20 Å / σ(F): 3 / Rfactor Rfree: 0.317 | ||||||||||||||||||||
Solvent computation | *PLUS | ||||||||||||||||||||
Displacement parameters | *PLUS |