5YZG

The Cryo-EM Structure of Human Catalytic Step I Spliceosome (C complex) at 4.1 angstrom resolution

ELECTRON MICROSCOPY

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Refinement

RMS Deviations
Key	Refinement Restraint Deviation
r_long_range_B_refined	47.913
r_long_range_B_other	47.913
r_dihedral_angle_2_deg	34.316
r_scangle_other	30.197
r_mcangle_it	24.89
r_mcangle_other	24.89
r_dihedral_angle_4_deg	21.04
r_dihedral_angle_3_deg	18.471
r_scbond_it	17.717
r_scbond_other	17.717
r_mcbond_it	15.036
r_mcbond_other	15.035
r_dihedral_angle_1_deg	7.601
r_angle_refined_deg	1.883
r_angle_other_deg	1.042
r_chiral_restr	0.098
r_bond_refined_d	0.016
r_gen_planes_refined	0.009
r_bond_other_d	0.003
r_gen_planes_other	0.003
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_scangle_it
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Sample
Human Catalytic Step I Spliceosome

Specimen Preparation
Sample Aggregation State	PARTICLE
Vitrification Instrument
Cryogen Name	ETHANE
Sample Vitrification Details

3D Reconstruction
Reconstruction Method	SINGLE PARTICLE
Number of Particles	53633
Reported Resolution (Å)	4.1
Resolution Method	FSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry Type	POINT
Point Symmetry	C1

Data Acquisition
Detector Type	GATAN K2 SUMMIT (4k x 4k)
Electron Dose (electrons/Å**2)	50

Imaging Experiment	1
Date of Experiment
Temperature (Kelvin)
Microscope Model	FEI TITAN KRIOS
Minimum Defocus (nm)
Maximum Defocus (nm)
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS
Imaging Mode	BRIGHT FIELD
Specimen Holder Model	FEI TITAN KRIOS AUTOGRID HOLDER
Nominal Magnification
Calibrated Magnification
Source	FIELD EMISSION GUN
Acceleration Voltage (kV)	300
Imaging Details

EM Software
Task	Software Package	Version
CTF CORRECTION	Gctf	0.66
INITIAL EULER ASSIGNMENT	RELION	2.0
FINAL EULER ASSIGNMENT	RELION	2.0
CLASSIFICATION	RELION	2.0
RECONSTRUCTION	RELION	2.0

Image Processing
CTF Correction Type	CTF Correction Details	Number of Particles Selected	Particle Selection Details
NONE		1464033