4O4E

Crystal Structure of an Inositol hexakisphosphate kinase EhIP6KA in complexed with ATP and Ins(1,3,4,5,6)P5

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	4O4C	PDB Entry 4O4C

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5.2	277	0.4 M NaH2PO4 in the presence of 10 mM ATP,5 mM IP3, 20 mM MgCl2. The crystals were further soaked under 22% (w/v) PEG 3350, 10 mM MgCl2, 10 mM ATP, 0.1 M sodium acetate, pH 5.2, 10 mM IP5 for 3 days, VAPOR DIFFUSION, HANGING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.51	50.91

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 102.999	α = 90
b = 102.999	β = 90
c = 110.976	γ = 90

Symmetry
Space Group	I 41 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	100	CCD	MARMOSAIC 300 mm CCD		2013-03-01	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 22-ID	1.0	APS	22-ID

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	1.9	50	99.3	0.049	42.9	8.1	23544	23544	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	1.9	1.93	93.9		0.527	2.6	6.3	1111

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	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	MOLECULAR REPLACEMENT	THROUGHOUT	PDB Entry 4O4C	1.9	28.86	22265	22265	1189	98.72	0.18505	0.18505	0.18328	0.21926	RANDOM	32.688

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			-0.79		1.57

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	30.085
r_dihedral_angle_3_deg	14.243
r_dihedral_angle_4_deg	13.488
r_long_range_B_refined	7.438
r_long_range_B_other	7.251
r_dihedral_angle_1_deg	6.625
r_scangle_other	3.743
r_mcangle_it	2.903
r_mcangle_other	2.902
r_scbond_it	2.307
r_scbond_other	2.29
r_mcbond_it	1.79
r_mcbond_other	1.789
r_angle_refined_deg	1.729
r_angle_other_deg	0.838
r_chiral_restr	0.133
r_bond_refined_d	0.011
r_gen_planes_refined	0.006
r_bond_other_d	0.001
r_gen_planes_other	0.001
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_scangle_it
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2046
Nucleic Acid Atoms
Solvent Atoms	195
Heterogen Atoms	70

Software

Software
Software Name	Purpose
HKL-2000	data collection
CCP4	model building
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling
CCP4	phasing