1T46

STRUCTURAL BASIS FOR THE AUTOINHIBITION AND STI-571 INHIBITION OF C-KIT TYROSINE KINASE

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	8.5	275	PHOSPHATE, pH 8.50, VAPOR DIFFUSION, SITTING DROP, temperature 275K

Crystal Properties
Matthews coefficient	Solvent content
2.4	50

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 70.089	α = 90
b = 70.089	β = 90
c = 127.88	γ = 120

Symmetry
Space Group	P 32 2 1

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	MIRRORS	2003-11-16	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 5.0.3	1.00	ALS	5.0.3

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	1.6	30	98.4	0.028	19.3	4.6	48006	48006	2	2

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)
	1.6	1.66	90		0.367	2.6

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	MOLECULAR REPLACEMENT	THROUGHOUT	1.6	20	45483	45483	2406	98.39	0.18963	0.18963	0.1884	0.21291	RANDOM	23.459

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]
1.18	0.59		1.18		-1.78

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	5.05
r_scangle_it	2.825
r_mcangle_it	2.471
r_scbond_it	1.866
r_mcbond_it	1.481
r_angle_refined_deg	1.085
r_nbd_refined	0.193
r_symmetry_vdw_refined	0.165
r_symmetry_hbond_refined	0.153
r_xyhbond_nbd_refined	0.118

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	5.05
r_scangle_it	2.825
r_mcangle_it	2.471
r_scbond_it	1.866
r_mcbond_it	1.481
r_angle_refined_deg	1.085
r_nbd_refined	0.193
r_symmetry_vdw_refined	0.165
r_symmetry_hbond_refined	0.153
r_xyhbond_nbd_refined	0.118
r_chiral_restr	0.075
r_bond_refined_d	0.007
r_gen_planes_refined	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2381
Nucleic Acid Atoms
Solvent Atoms	268
Heterogen Atoms	47

Software

Software
Software Name	Purpose
HKL-2000	data collection
SCALEPACK	data scaling
AMoRE	phasing
REFMAC	refinement
HKL-2000	data reduction

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.