4V5Q

The crystal structure of EF-Tu and G24A-tRNA-Trp bound to a near- cognate codon on the 70S ribosome

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2WRN	PDB ENTRY 2WRN

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		6.3		100 MM MES PH 6.3, 60-100 MM KCL, 50 MM SUCROSE, 1% GLYCEROL, 5.2% (W/V) PEG20K

Crystal Properties
Matthews coefficient	Solvent content
3.39	63.67

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 289.9	α = 90
b = 269.4	β = 91.51
c = 404.5	γ = 90

Symmetry
Space Group	P 1 21 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	CCD	ADSC		2010-01-28	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-4		ESRF	ID14-4

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	3.1	50	98.7	0.02	6.19	6.4		1105502		1.27	61.1

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	3.1	3.2	98.5		0.09	1.23	6.5

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 ENTRY 2WRN	3.1	50	1105502	55077	98.7	0.2384	0.2384	0.2752	INHERITED FROM 2WRN	90.7

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]
0.79		-12.25	1		-1.79

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	29
c_improper_angle_d	1.57
c_angle_deg	1.3
c_bond_d	0.008
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	22130
Nucleic Acid Atoms	37572
Solvent Atoms
Heterogen Atoms	89

Software

Software
Software Name	Purpose
CNS	model building
CNS	refinement
XDS	data reduction
XDS	data scaling
CNS	phasing