8ANA

Cryo-EM structure of the proline-rich antimicrobial peptide drosocin bound to the 50S ribosomal subunit

ELECTRON MICROSCOPY

---

Refinement

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_3_deg	10.29
r_dihedral_angle_1_deg	5.558
r_long_range_B_refined	4.835
r_long_range_B_other	4.834
r_mcangle_it	2.974
r_mcangle_other	2.974
r_dihedral_angle_2_deg	2.795
r_scangle_other	2.384
r_mcbond_it	1.589
r_mcbond_other	1.589
r_scbond_it	1.316
r_scbond_other	1.316
r_angle_refined_deg	0.928
r_angle_other_deg	0.872
r_chiral_restr	0.126
r_gen_planes_refined	0.005
r_bond_refined_d	0.004
r_bond_other_d	0.004
r_gen_planes_other	0.004
r_dihedral_angle_4_deg
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
Cryo-EM structure of the proline-rich antimicrobial peptide drosocin bound to the 50S ribosomal subunit

Specimen Preparation
Sample Aggregation State	PARTICLE
Vitrification Instrument	FEI VITROBOT MARK IV
Cryogen Name	ETHANE-PROPANE
Sample Vitrification Details

3D Reconstruction
Reconstruction Method	SINGLE PARTICLE
Number of Particles	159749
Reported Resolution (Å)	2.1
Resolution Method	FSC 0.143 CUT-OFF
Other Details
Refinement Type
Symmetry Type	POINT

Map-Model Fitting and Refinement
Id	1
Refinement Space
Refinement Protocol
Refinement Target
Overall B Value
Fitting Procedure
Details

Data Acquisition
Detector Type	FEI FALCON IV (4k x 4k)
Electron Dose (electrons/Å**2)	40

Imaging Experiment	1
Date of Experiment
Temperature (Kelvin)
Microscope Model	FEI TITAN KRIOS
Minimum Defocus (nm)	400
Maximum Defocus (nm)	900
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS
Imaging Mode	BRIGHT FIELD
Specimen Holder Model
Nominal Magnification
Calibrated Magnification
Source	FIELD EMISSION GUN
Acceleration Voltage (kV)	300
Imaging Details

EM Software
Task	Software Package	Version
CTF CORRECTION	CTFFIND	4.1.14
INITIAL EULER ASSIGNMENT	RELION	4.0
FINAL EULER ASSIGNMENT	RELION	4.0
CLASSIFICATION	RELION	4.0

Image Processing
CTF Correction Type	CTF Correction Details	Number of Particles Selected	Particle Selection Details
PHASE FLIPPING AND AMPLITUDE CORRECTION