1JP4

Crystal Structure of an Enzyme Displaying both Inositol-Polyphosphate 1-Phosphatase and 3'-Phosphoadenosine-5'-Phosphate Phosphatase Activities

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5	293	PEG 8K, magnesium acetate, sodium cacodylate, lithium chloride, magnesium chloride, PAP, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.53	51.39

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 48.635	α = 90
b = 74.493	β = 90
c = 92.827	γ = 90

Symmetry
Space Group	P 21 21 21

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		2000-04-20	M	SINGLE WAVELENGTH
2	1	x-ray	100	CCD	MARRESEARCH		2000-06-26	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SRS BEAMLINE PX9.6	1.244	SRS	PX9.6
2	SYNCHROTRON	ESRF BEAMLINE BM14	0.97911, 0.97923, 0.91847	ESRF	BM14

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
1,2	1.69	24.94	99.7	0.09	0.09	12.4	5.3	38295	38295			13

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)
	1.69	1.78	99.6		0.369	0.369	4	5.1	5441

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	MAD	THROUGHOUT	1.69	24.94	38295	38295	1918	99.62	0.14866	0.14866	0.14696	0.18016	RANDOM	12.832

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]
-0.29			0.47		-0.18

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_3_deg	17.333
r_dihedral_angle_1_deg	5.603
r_scangle_it	4.687
r_scbond_it	3.245
r_mcangle_it	2.354
r_angle_other_deg	1.94
r_angle_refined_deg	1.605
r_mcbond_it	1.496
r_nbd_refined	0.236
r_xyhbond_nbd_refined	0.235
r_symmetry_hbond_refined	0.228
r_nbtor_other	0.199
r_nbd_other	0.195
r_symmetry_vdw_other	0.174
r_chiral_restr	0.111
r_symmetry_vdw_refined	0.068
r_bond_refined_d	0.014
r_gen_planes_refined	0.007
r_gen_planes_other	0.002
r_bond_other_d
r_xyhbond_nbd_other
r_symmetry_hbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2269
Nucleic Acid Atoms
Solvent Atoms	424
Heterogen Atoms	35

Software

Software
Software Name	Purpose
SnB	phasing
REFMAC	refinement
DENZO	data reduction
SCALEPACK	data scaling