4XOU

Crystal structure of the SR Ca2+-ATPase in the Ca2-E1-MgAMPPCP form determined by serial femtosecond crystallography using an X-ray free-electron laser.


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 3N8G 

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1BATCH MODE293PEG 6000, sodium acetate, glycerol, tert-butanol, beta-mercaptoethanol
Crystal Properties
Matthews coefficientSolvent content
4.0369.46

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 162α = 90
b = 76.3β = 109
c = 151.1γ = 90
Symmetry
Space GroupC 1 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray291PIXELCS-PAD CXI-12012-07-06MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1FREE ELECTRON LASERSLAC LCLS BEAMLINE CXI2.066SLAC LCLSCXI

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (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
12.859.998.11.1317.342416
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
12.82.985.50.394.2

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-VALUE3N8G2.859.871.3341471120095.910.30520.3040.3428
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_d12.553
f_angle_d0.762
f_chiral_restr0.027
f_bond_d0.006
f_plane_restr0.003
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms7671
Nucleic Acid Atoms
Solvent Atoms
Heterogen Atoms35

Software

Software
Software NamePurpose
PHENIXrefinement
PHASERphasing
PDB_EXTRACTdata extraction
CASSdata processing
CrystFELdata processing