5Y88

Cryo-EM structure of the intron-lariat spliceosome ready for disassembly from S.cerevisiae at 3.5 angstrom

ELECTRON MICROSCOPY

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Refinement

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	28.387
r_long_range_B_refined	28.378
r_long_range_B_other	28.378
r_scangle_other	16.579
r_mcangle_it	14.991
r_mcangle_other	14.991
r_dihedral_angle_4_deg	13.758
r_dihedral_angle_3_deg	12.647
r_scbond_it	9.818
r_scbond_other	9.818
r_mcbond_it	9.067
r_mcbond_other	9.067
r_dihedral_angle_1_deg	8.666
r_angle_refined_deg	1.456
r_angle_other_deg	0.96
r_chiral_restr	0.082
r_bond_refined_d	0.012
r_gen_planes_refined	0.008
r_bond_other_d	0.002
r_gen_planes_other	0.002
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
S. cerevisiae intron lariat spliceosome (ILS)

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

3D Reconstruction
Reconstruction Method	SINGLE PARTICLE
Number of Particles	150363
Reported Resolution (Å)	3.46
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)	37.6

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	2.7
Imaging Mode	BRIGHT FIELD
Specimen Holder Model	GATAN LIQUID NITROGEN
Nominal Magnification
Calibrated Magnification
Source	FIELD EMISSION GUN
Acceleration Voltage (kV)	300
Imaging Details

EM Software
Task	Software Package	Version
IMAGE ACQUISITION	UCSFImage4
CTF CORRECTION	Gctf
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
PHASE FLIPPING AND AMPLITUDE CORRECTION