9P0X | pdb_00009p0x

Nanodisc-embedded human TF/FVIIa/XK1 in complex with 10H10 Fab (nanodisc-subtracted)


ELECTRON MICROSCOPY

Starting Model(s)

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

Refinement

RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d9.7517
f_angle_d0.6949
f_chiral_restr0.0434
f_plane_restr0.0044
f_bond_d0.0031
Sample
Complex of factor VIIa, XK1 and the Fab fragment of antibody 10H10, all bound to tissue factor embedded in a nanodisc membrane bilayer.
Sample Components
Human 10H10 antibody Fab
XK1 chimeric protein
Human factor VIIa (FVIIa)
Human MBP-tagged tissue factor
Specimen Preparation
Sample Aggregation StatePARTICLE
Vitrification InstrumentFEI VITROBOT MARK IV
Cryogen NameETHANE
Sample Vitrification Details
3D Reconstruction
Reconstruction MethodSINGLE PARTICLE
Number of Particles20107
Reported Resolution (Å)3.7
Resolution MethodFSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry TypePOINT
Point SymmetryC1
Map-Model Fitting and Refinement
Id1 (1dan, 1dan, 1dan, 1dan, 3th2, 1iod, 1xka, 4bqd, 12e8, 12e8, 4m7l, 4m7l)
Refinement SpaceREAL
Refinement ProtocolFLEXIBLE FIT
Refinement Targetcross-correlation
Overall B Value
Fitting Procedure
DetailsCrystal structures were rigid-body fit into the density map and model optimization was then carried out with Phenix real-space refine. Manual refineme ...Crystal structures were rigid-body fit into the density map and model optimization was then carried out with Phenix real-space refine. Manual refinement in Coot was performed to ensure that the backbone traces followed the density in regions where the map was high enough resolution to trace the backbone. Secondary structure restraints were used to ensure that alpha-helices and beta-sheets did not deviate far from their expected geometry. A final check of MolProbity and cross correlation was done to ensure model quality.
Data Acquisition
Detector TypeGATAN K3 (6k x 4k)
Electron Dose (electrons/Å**2)50
Imaging Experiment1
Date of Experiment
Temperature (Kelvin)
Microscope ModelTFS KRIOS
Minimum Defocus (nm)1000
Maximum Defocus (nm)2500
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS
Imaging ModeBRIGHT FIELD
Specimen Holder Model
Nominal Magnification105000
Calibrated Magnification
SourceFIELD EMISSION GUN
Acceleration Voltage (kV)300
Imaging Details
EM Software
TaskSoftware PackageVersion
PARTICLE SELECTIONcryoSPARC
MODEL REFINEMENTPHENIX1.21.2_5419
RECONSTRUCTIONcryoSPARC
Image Processing
CTF Correction TypeCTF Correction DetailsNumber of Particles SelectedParticle Selection Details
NONE2862371