Experiment: 8SSN

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8	291.15	Crystals of AblFL in complex with SKI and asciminib were obtained by combining 0.3 ul of 600 uM AblFL + 700 uM SKI + 700 uM asciminib (~32 mg/ml) in 5 percent DMSO with 0.4 ul reservoir of 0.1 M Tris-HCl pH 8 + 1.75 M Ammonium sulfate + 2 percent (v/v) polypropylene glycol 400 (PPG 400). The final stock of complex was concentrated from 1 uM AblFL with ~1.2 uM SKI/asciminib after incubation at 4 degree C for 6 h. Screening around this condition yielded crystals in a transparent diamond-shaped or plate-shaped crystals. Crystals were grown at 18 degree C by sitting drop for a few days. The crystals were transferred to a drop of fresh reservoir containing 20 percent Xylitol with matching concentration of inhibitors in 5 percent DMSO for few seconds for cryo-protection

Crystal Properties
Matthews coefficient	Solvent content
2.52	51.21

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 92.478	α = 90
b = 103.213	β = 90
c = 107.963	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	PIXEL	DECTRIS PILATUS 6M		2022-06-01	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 2.0.1	1.04054	ALS	2.0.1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	CC (Half)	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	2.86	47.83	98.28	0.08614	0.997	4.93	2		24343			73.79

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.86	2.967			1.367	0.31	0.51

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	2.86	47.83	1.33	23968	1189	98.3	0.3002	0.2977	0.348

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]

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	5.753
f_angle_d	0.729
f_chiral_restr	0.045
f_plane_restr	0.006
f_bond_d	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	6466
Nucleic Acid Atoms
Solvent Atoms	51
Heterogen Atoms	150

Software

Software
Software Name	Purpose
PHENIX	refinement
XDS	data reduction
Aimless	data scaling
PHASER	phasing

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 R01GM133198.