3BOR

Crystal structure of the DEADc domain of human translation initiation factor 4A-2

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION	7.3	291	25% PEG 3350, 0.1M Bis-Tris, 0.2M Ammonium acetate. Chymotrypsin was added to the crystallization sample at a molar ratio of approx. 1:100, pH 7.3, VAPOR DIFFUSION, temperature 291K

Crystal Properties
Matthews coefficient	Solvent content
1.85	33.39

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 58.093	α = 90
b = 80.102	β = 90
c = 42.74	γ = 90

Symmetry
Space Group	P 21 21 2

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 QUANTUM 315		2007-12-06	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-ID	0.97242	APS	19-ID

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	1.85	40	100	0.133	6.6	11.4		17895

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)
	1.85	1.92	99.9		0.656		10.1	1744

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 (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB entry 2G9N	1.85	30	17560	883	99.57	0.187	0.187	0.185	0.226	RANDOM	16.434

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]
-0.19			-0.18		0.38

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.249
r_dihedral_angle_4_deg	14.033
r_dihedral_angle_3_deg	12.409
r_dihedral_angle_1_deg	5.324
r_scangle_it	3.559
r_mcangle_it	3.225
r_scbond_it	2.626
r_mcbond_it	2.551
r_angle_refined_deg	1.344
r_angle_other_deg	0.921
r_mcbond_other	0.685
r_symmetry_vdw_other	0.232
r_nbd_refined	0.195
r_nbd_other	0.17
r_nbtor_refined	0.17
r_symmetry_hbond_refined	0.136
r_xyhbond_nbd_refined	0.123
r_chiral_restr	0.089
r_nbtor_other	0.084
r_symmetry_vdw_refined	0.072
r_bond_refined_d	0.015
r_gen_planes_refined	0.005
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1493
Nucleic Acid Atoms
Solvent Atoms	97
Heterogen Atoms

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
PHASER	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
ADSC	data collection
ARP/wARP	model building
Coot	model building
MolProbity	model building