6M8B

Crystal structure of the core catalytic domain of human inositol phosphate multikinase in complex with kaempferol

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	SYNCHROTRON
Source details	APS BEAMLINE 22-ID
Synchrotron site	APS
Beamline	22-ID
Temperature [K]	100
Detector technology	CCD
Collection date	2018-04-12
Detector	RAYONIX MX300-HS
Wavelength(s)	1
Spacegroup name	P 42 21 2
Unit cell lengths	78.085, 78.085, 84.679
Unit cell angles	90.00, 90.00, 90.00

Refinement procedure

Resolution	40.000 - 1.800
R-factor	0.171
Rwork	0.169
R-free	0.22300
Structure solution method	FOURIER SYNTHESIS
Starting model (for MR)	5w2g
RMSD bond length	0.008
RMSD bond angle	1.286
Data reduction software	HKL-2000
Data scaling software	HKL-2000
Phasing software	REFMAC
Refinement software	REFMAC (5.8.0189)

Data quality characteristics

	Overall	Outer shell
Low resolution limit [Å]	50.000	1.840
High resolution limit [Å]	1.800	1.800
Rmerge	0.089	0.815
Number of reflections	24745
<I/σ(I)>	29.3	3
Completeness [%]	99.6	97.1
Redundancy	14.9	11.8

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	VAPOR DIFFUSION, HANGING DROP	6	298	35% (w/v) PEG 400, 0.1 M Li2SO4, 100 mM MES Imidanzol buffer , pH 6.0, 50 mM beta-mercaptoethanol at 298K. To obtain complex structure, the apo crystal was further soaked under 35% (w/v) PEG 400, 0.1 M Li2SO4, 100 mM HEPES, pH 7.5 at 298K in the presence of 10 mM kaempferol for 3 days.