1GW8 | pdb_00001gw8

quasi-atomic resolution model of bacteriophage PRD1 sus607 mutant, obtained by combined cryo-EM and X-ray crystallography.

ELECTRON MICROSCOPY

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1HX6

Sample
BACTERIOPHAGE PRD1 SUS607

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

3D Reconstruction
Reconstruction Method	SINGLE PARTICLE
Number of Particles	1729
Reported Resolution (Å)	13.3
Resolution Method
Other Details	RIGID BODY REFINEMENT AGAINST CRYO-EM MAP XPLOR 3.851 (BRUNGER). DATA USED IN REFINEMENT. RESOLUTION RANGE HIGH INFINITY RESOLUTION RANGE LOW 15A DATA CUTOFF (SIGMA(F)) 0.0 NUMBER OF REFLECTIONS 1430672 FIT TO DATA USED IN
Refinement Type
Symmetry Type	POINT
Point Symmetry	I

Map-Model Fitting and Refinement
Id	1 (1HX6)
Refinement Space	RECIPROCAL
Refinement Protocol	RIGID BODY FIT
Refinement Target	R-factor
Overall B Value
Fitting Procedure
Details	METHOD--RIGID BODY REFINEMENT PROTOCOL--X-RAY

Data Acquisition
Detector Type	KODAK SO-163 FILM
Electron Dose (electrons/Å**2)	6

Imaging Experiment	1
Date of Experiment	2001-12-01
Temperature (Kelvin)	95
Microscope Model	FEI/PHILIPS CM200FEG
Minimum Defocus (nm)	1300
Maximum Defocus (nm)	4100
Minimum Tilt Angle (degrees)
Maximum Tilt Angle (degrees)
Nominal CS	2
Imaging Mode	BRIGHT FIELD
Specimen Holder Model
Nominal Magnification	50000
Calibrated Magnification	45100
Source	FIELD EMISSION GUN
Acceleration Voltage (kV)	200
Imaging Details

EM Software
Task	Software Package	Version
MODEL FITTING	EMfit
RECONSTRUCTION	MRC IMAGE PROCESSING PACKAGE
RECONSTRUCTION	SPIDER

Image Processing
CTF Correction Type	CTF Correction Details	Number of Particles Selected	Particle Selection Details
	PHASE RESTORATION BY CTF- MULTIPLICATION OF IMAGES; AMPLITUDE RESTORATION BY COMPARISON WITH QUASI- ATOMIC MODEL