Structure of Escherichia coli phosphoenolpyruvate carboxykinase with bound ATP, Mg2+, and Mn2+


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 2PXZ 

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP2934 ul drop with 4 mg/mL protein, 1 mM ADP, 1 mM phosphoenol pyruvate, 2.5 mM MgCl2, 2.5 mM MnCl2, 1 mM EDTA, 100 mM sodium acetate (pH 4.5), 200 mM ammonium acetate and 12% PEG 4000 was allowed to equilibrate with a 1 mL reservoir of 100 mM sodium acetate, 200 mM ammonium acetate and 31% PEG 4000
Crystal Properties
Matthews coefficientSolvent content
2.2846.1

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 125.17α = 90
b = 95.68β = 95.8
c = 46.56γ = 90
Symmetry
Space GroupC 1 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray110PIXELRIGAKU HyPix-6000HE2025-07-25MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1ROTATING ANODERIGAKU PhotonJet-R1.54184

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (Observed)R Sym I (Observed)Net I Over Average Sigma (I)RedundancyNumber Reflections (All)Number Reflections (Observed)Observed Criterion Sigma (F)Observed Criterion Sigma (I)B (Isotropic) From Wilson Plot
11.5821.9799.80.0230.05737.210.87458810.99
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)R-Sym I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
11.581.6499.20.1480.2496.718.2

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (High)Resolution (Low)Cut-off Sigma (F)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-Work (Depositor)R-Work (DCC)R-Free (Depositor)R-Free (DCC)Mean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTFREE R-VALUE1.5821.950.173000196197.680.16650.16590.16590.18530.185414.77
Temperature Factor Modeling
Anisotropic B[1][1]Anisotropic B[1][2]Anisotropic B[1][3]Anisotropic B[2][2]Anisotropic B[2][3]Anisotropic B[3][3]
RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d14.8617
f_angle_d0.8382
f_chiral_restr0.0552
f_plane_restr0.0073
f_bond_d0.0057
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms4129
Nucleic Acid Atoms
Solvent Atoms339
Heterogen Atoms34

Software

Software
Software NamePurpose
PHENIXrefinement
CrysalisProdata reduction
CrysalisProdata scaling
PHENIXphasing