4V5O

CRYSTAL STRUCTURE OF THE EUKARYOTIC 40S RIBOSOMAL SUBUNIT IN COMPLEX WITH INITIATION FACTOR 1.

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		6.5		50MM MES-KOH PH6.5, 80MM MGCL2, 200MM KCL, 0.495MM PUTRESCEINE, 4.4-5.4% (W/V) PEG20000

Crystal Properties
Matthews coefficient	Solvent content
4	71

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 320.52	α = 90
b = 362.21	β = 109.61
c = 412.11	γ = 90

Symmetry
Space Group	C 1 2 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	PIXEL	DECTRIS		2010-03-08	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SLS BEAMLINE X06SA		SLS	X06SA

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge 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	3.93	100	93	0.15	6.8	3.4		364651		-3

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	3.93	4.17	61		0.81	2.05	3.4

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	SAD	THROUGHOUT	PDB ENTRY 2J02	3.93	25	332261	6635	85.1	0.2065	0.2065	0.2431	RANDOM	148.4

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]
22.55		4.908	14.527		-37.076

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	20.7
c_improper_angle_d	1.4
c_angle_deg	1.33835
c_bond_d	0.007318
c_bond_d_na
c_bond_d_prot
c_angle_d
c_angle_d_na
c_angle_d_prot
c_angle_deg_na
c_angle_deg_prot
c_dihedral_angle_d_na
c_dihedral_angle_d_prot
c_improper_angle_d_na
c_improper_angle_d_prot
c_mcbond_it
c_mcangle_it
c_scbond_it
c_scangle_it

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	40937
Nucleic Acid Atoms	37231
Solvent Atoms	552
Heterogen Atoms	96

Software

Software
Software Name	Purpose
SHARP	model building
PHASER	model building
DM	model building
CNS	model building
PHENIX	model building
CNS	refinement
XDS	data reduction
XSCALE	data scaling
SHARP	phasing
PHASER	phasing
DM	phasing
CNS	phasing
PHENIX	phasing