4V4G

Crystal structure of five 70s ribosomes from Escherichia Coli in complex with protein Y.

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		6.5		18-22% 2-methyl-2,4-pentanediol (MPD), 0-5% ethanol, 20-25mM MgCl2, 200-320mM NH4Cl, 1mM spermine, 0-0.5mM spermidine, pH 6.0-6.5, pH 6.50

Crystal Properties
Matthews coefficient	Solvent content
5.38	77.12

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 687.9	α = 90
b = 687.9	β = 90
c = 1933.3	γ = 90

Symmetry
Space Group	I 4 2 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	110	CCD	ADSC QUANTUM 315		2004-03-01	M	SINGLE WAVELENGTH
2	1		CCD	ADSC QUANTUM 210		2004-03-01
3	1

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 8.3.1	1.0	ALS	8.3.1
2	SYNCHROTRON	ALS BEAMLINE 8.2.1	1.2	ALS	8.2.1
3	SYNCHROTRON	ALS BEAMLINE 8.2.2	1.3	ALS	8.2.2

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Sym I (Observed)	Net I Over Average Sigma (I)	Redundancy	Number Reflections (All)	Number Reflections (Observed)	Observed Criterion Sigma (F)	Observed Criterion Sigma (I)	B (Isotropic) From Wilson Plot
1	11.5	500	93.9	0.181	7.4	6.1		62383		-3

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	11.5	11.8	77.9		0.462	2	2.6

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRIES 1PNS, 1PNU	11.5	500	62383	6283	93.9	0.395	0.395	0.401	RANDOM

Temperature Factor Modeling
Anisotropic B[1][1]	Anisotropic B[1][2]	Anisotropic B[1][3]	Anisotropic B[2][2]	Anisotropic B[2][3]	Anisotropic B[3][3]

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	19749
Nucleic Acid Atoms	32799
Solvent Atoms
Heterogen Atoms

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
CNS	refinement
CNS	phasing

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.