8A8M

Structure of the MAPK p38alpha in complex with its activating MAP2K MKK6


ELECTRON MICROSCOPY

Refinement

RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d6.732
f_angle_d0.894
f_chiral_restr0.048
f_plane_restr0.007
f_bond_d0.004
Sample
Complex between the MAP2K MKK6 and its substrate MAPK p38alpha
Sample Components
Mitogen-activated protein kinase 14 (MAPK p38alpha)
Dual specificity mitogen-activated protein kinase kinase 6 (MAP2K MKK6)
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentFEI VITROBOT MARK IV
Cryogen NameETHANE
Sample Vitrification Detailsblot for 3.5 seconds
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles35123
Reported Resolution (Å)4
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypePOINT
Map-Model Fitting and Refinement
Id1 (5ETC, 5ETA, 6YG1)
Refinement SpaceREAL
Refinement ProtocolRIGID BODY FIT
Refinement Target
Overall B Value
Fitting Procedure
Details
Data Acquisition
Detector TypeGATAN K2 QUANTUM (4k x 4k)
Electron Dose (electrons/Å**2)62.77
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelFEI TITAN KRIOS
Minimum Defocus (nm)1500
Maximum Defocus (nm)3000
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS2.7
Imaging ModeBRIGHT FIELD
Specimen Holder ModelFEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification215000
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
PARTICLE SELECTIONcryoSPARC3.3.2
IMAGE ACQUISITIONSerialEM
CTF CORRECTIONcryoSPARC3.3.2
MODEL FITTINGPHENIX
INITIAL EULER ASSIGNMENTcryoSPARC3.3.2
FINAL EULER ASSIGNMENTcryoSPARC3.2.2
RECONSTRUCTIONcryoSPARC3.3.2
MODEL REFINEMENTPHENIX
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION