7ECA

Crystal structure of the Keap1 complex with a peptide base on ETGE motif.


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1X2R 

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP298Lithium Sulfate,Ammonium Sulfate,sodium citrate 5.1
Crystal Properties
Matthews coefficientSolvent content
2.141.52

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 102.814α = 90
b = 102.814β = 90
c = 54.812γ = 120
Symmetry
Space GroupP 61

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDOXFORD ONYX CCD2020-07-17MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1ROTATING ANODERIGAKU1.54184

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)CC (Half)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
1220.13599.830.9961.968.42247620.3899710197
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)CC (Half)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
122.110.994

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Cut-off Sigma (F)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTFREE R-VALUE1x2r2.0000635194320.13498487491.3529987114922467114799.94661684240.1988181417110.1968223669790.23545681783125.6687614344
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_d5.82547315027
f_angle_d0.577313765191
f_chiral_restr0.0473419261539
f_plane_restr0.00395850771617
f_bond_d0.00237912085257
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms2300
Nucleic Acid Atoms
Solvent Atoms160
Heterogen Atoms55

Software

Software
Software NamePurpose
PHENIXrefinement
CrysalisProdata reduction
CCP4data scaling
CCP4phasing