2OQK

Crystal structure of putative Cryptosporidium parvum translation initiation factor eIF-1A

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	4.6	297	2.5 M Ammonium sulfate, 0.1M Sodium acetate, pH 4.6, VAPOR DIFFUSION, HANGING DROP, temperature 297K

Crystal Properties
Matthews coefficient	Solvent content
3.63	66.09

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 94.769	α = 90
b = 94.769	β = 90
c = 113.883	γ = 120

Symmetry
Space Group	H 3 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 4	Si(111)	2007-01-27	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X8C	0.97970	NSLS	X8C

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (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	1.8	50	100	0.074	0.074	12.3	10.6	18459	18459			25.5

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.8	1.84	99.6		0.78	0.78	2.11	7.4	1801

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (All)	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	SAD	THROUGHOUT	1.8	29.93	17497	17497	943	99.83	0.20709	0.20709	0.20537	0.24099	RANDOM	26.668

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]
-0.15	-0.08		-0.15		0.23

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.315
r_dihedral_angle_4_deg	14.751
r_dihedral_angle_3_deg	13.363
r_dihedral_angle_1_deg	5.678
r_scangle_it	4.213
r_scbond_it	2.756
r_mcangle_it	1.812
r_angle_refined_deg	1.464
r_mcbond_it	1.082
r_nbtor_refined	0.305
r_symmetry_hbond_refined	0.268
r_nbd_refined	0.206
r_symmetry_vdw_refined	0.177
r_xyhbond_nbd_refined	0.132
r_chiral_restr	0.113
r_bond_refined_d	0.014
r_gen_planes_refined	0.006
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	741
Nucleic Acid Atoms
Solvent Atoms	148
Heterogen Atoms	5

Software

Software
Software Name	Purpose
REFMAC	refinement
CBASS	data collection
HKL-2000	data reduction
HKL-2000	data scaling
SOLVE	phasing
RESOLVE	phasing