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- PDB-1ftx: Crystal structure of alanine racemase in complex with D-alanine p... -

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Basic information

Entry
Database: PDB / ID: 1ftx
TitleCrystal structure of alanine racemase in complex with D-alanine phosphonate
ComponentsALANINE RACEMASE
KeywordsISOMERASE / alanine racemase / D-alanine phosphonate
Function / homology
Function and homology information


alanine racemase / D-alanine biosynthetic process / alanine racemase activity / peptidoglycan biosynthetic process / pyridoxal phosphate binding / cytosol
Similarity search - Function
Alanine racemase, pyridoxal-phosphate attachment site / Alanine racemase pyridoxal-phosphate attachment site. / Alanine racemase / Alanine racemase, C-terminal / Alanine racemase, C-terminal domain / Alanine racemase, C-terminal domain / Alanine racemase, N-terminal / Alanine racemase, N-terminal domain / Lyase, Ornithine Decarboxylase; Chain A, domain 1 / Lyase, Ornithine Decarboxylase; Chain A, domain 1 ...Alanine racemase, pyridoxal-phosphate attachment site / Alanine racemase pyridoxal-phosphate attachment site. / Alanine racemase / Alanine racemase, C-terminal / Alanine racemase, C-terminal domain / Alanine racemase, C-terminal domain / Alanine racemase, N-terminal / Alanine racemase, N-terminal domain / Lyase, Ornithine Decarboxylase; Chain A, domain 1 / Lyase, Ornithine Decarboxylase; Chain A, domain 1 / Alanine racemase / Alanine racemase/group IV decarboxylase, C-terminal / PLP-binding barrel / TIM Barrel / Alpha-Beta Barrel / Beta Barrel / Mainly Beta / Alpha Beta
Similarity search - Domain/homology
Chem-EPC / Alanine racemase
Similarity search - Component
Biological speciesGeobacillus stearothermophilus (bacteria)
MethodX-RAY DIFFRACTION / Resolution: 2.2 Å
AuthorsStamper, G.F. / Ringe, D.
History
DepositionSep 13, 2000Deposition site: RCSB / Processing site: RCSB
Revision 1.0Jan 14, 2003Provider: repository / Type: Initial release
Revision 1.1Apr 27, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Feb 1, 2017Group: Structure summary

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: ALANINE RACEMASE
B: ALANINE RACEMASE
hetero molecules


Theoretical massNumber of molelcules
Total (without water)87,8364
Polymers87,1282
Non-polymers7082
Water4,828268
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area7700 Å2
ΔGint-0 kcal/mol
Surface area27050 Å2
MethodPISA
Unit cell
Length a, b, c (Å)98.759, 89.931, 85.235
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number19
Space group name H-MP212121

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Components

#1: Protein ALANINE RACEMASE /


Mass: 43563.879 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Geobacillus stearothermophilus (bacteria)
Production host: Escherichia coli (E. coli) / References: UniProt: P10724, alanine racemase
#2: Chemical ChemComp-EPC / (1S)-1-[((1E)-{3-HYDROXY-2-METHYL-5-[(PHOSPHONOOXY)METHYL]PYRIDIN-4-YL}METHYLENE)AMINO]ETHYLPHOSPHONIC ACID


Mass: 354.190 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C10H16N2O8P2
#3: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 268 / Source method: isolated from a natural source / Formula: H2O

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION / Number of used crystals: 1

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Sample preparation

CrystalDensity Matthews: 2.17 Å3/Da / Density % sol: 43.34 %
Crystal growTemperature: 293 K / Method: vapor diffusion, hanging drop / pH: 8.5
Details: 23% PEG 4000, 200mM sodium acetate, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K

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Data collection

DiffractionMean temperature: 298 K
Diffraction sourceSource: ROTATING ANODE / Type: RIGAKU RU300 / Wavelength: 1.5418
DetectorType: RIGAKU RAXIS / Detector: IMAGE PLATE / Date: Nov 11, 1999
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5418 Å / Relative weight: 1
ReflectionResolution: 2.2→30 Å / Num. all: 39355 / Num. obs: 203114 / % possible obs: 94.8 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0 / Redundancy: 4 % / Biso Wilson estimate: 11.4 Å2 / Rmerge(I) obs: 0.08 / Net I/σ(I): 11.1
Reflection shellResolution: 2.2→2.28 Å / Redundancy: 1.5 % / Rmerge(I) obs: 0.239 / Num. unique all: 0 / % possible all: 98.5

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Processing

Software
NameClassification
DENZOdata reduction
SCALEPACKdata scaling
CNSrefinement
CNSphasing
RefinementResolution: 2.2→29.52 Å / Details: 0 / Rfactor Rfree error: 0.005 / Data cutoff high absF: 181729.81 / Data cutoff low absF: 0 / Isotropic thermal model: RESTRAINED / Cross valid method: THROUGHOUT / σ(F): 0 / σ(I): 0 / Stereochemistry target values: Engh & Huber
RfactorNum. reflection% reflectionSelection details
Rfree0.211 2151 6 %RANDOM
Rwork0.183 ---
obs0.183 35600 90.8 %-
all-0 --
Solvent computationSolvent model: FLAT MODEL / Bsol: 68.61 Å2 / ksol: 0.356 e/Å3
Displacement parametersBiso mean: 23.2 Å2
Baniso -1Baniso -2Baniso -3
1-0 Å20 Å20 Å2
2--0 Å20 Å2
3---0 Å2
Refine analyze
FreeObs
Luzzati coordinate error0.27 Å0.23 Å
Luzzati d res low-5 Å
Luzzati sigma a0.29 Å0.23 Å
Refinement stepCycle: LAST / Resolution: 2.2→29.52 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms6048 0 44 268 6360
Refine LS restraints
Refine-IDTypeDev idealDev ideal target
X-RAY DIFFRACTIONc_bond_d0.008
X-RAY DIFFRACTIONc_angle_deg1.5
X-RAY DIFFRACTIONc_dihedral_angle_d25
X-RAY DIFFRACTIONc_improper_angle_d0.96
X-RAY DIFFRACTIONc_mcbond_it2.381.5
X-RAY DIFFRACTIONc_mcangle_it3.322
X-RAY DIFFRACTIONc_scbond_it4.022
X-RAY DIFFRACTIONc_scangle_it5.452.5
LS refinement shellResolution: 2.2→2.34 Å / Rfactor Rfree error: 0.015 / Total num. of bins used: 6
RfactorNum. reflection% reflection
Rfree0.271 331 5.7 %
Rwork0.234 5476 -
obs--90.2 %
Xplor file
Refine-IDSerial noParam fileTopol file
X-RAY DIFFRACTION1PROTEIN_REP.PARAMPROTEIN.TOP
X-RAY DIFFRACTION2WATER_REP.PARAMWATER.TOP
X-RAY DIFFRACTION3KCX.PARKCX.TOP
X-RAY DIFFRACTION4DAP.PARDAP.TOP

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