9DI9

Rat branched chain ketoacid dehydrogenase kinase in complex with inhibitor

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	4E00

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6	293	16% PEG-3350 and 8% tacsimate pH 6.0 (Hampton Research). Fully grown crystals were soaked overnight in a solution of 8% tacsimate pH 6.0, 25% PEG-3350, 50 mM KCl, 50 mM MgCl2, 2 mM ADP, 20% glycerol, 5% DMSO, and 1.5 mM 6 (PF-07328948) and flash frozen in liquid nitrogen

Crystal Properties
Matthews coefficient	Solvent content
3.37	63.47

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 126.35	α = 90
b = 126.35	β = 90
c = 74.68	γ = 90

Symmetry
Space Group	P 42 21 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	PIXEL	DECTRIS EIGER X 16M		2020-11-14	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 17-ID	1.0	APS	17-ID

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Rpim I (All)	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	2.155	89.35	86.8	0.103	0.03	0.999	15.6	13.2		26167

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Rpim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.155	2.292	46		2.728	0.761	0.439	1.1	13.5

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	2.155	25.27	26142	1327	78.8	0.2074	0.2059	0.2357	RANDOM	58.18

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]
-1.4241			-1.4241		2.8481

RMS Deviations
Key	Refinement Restraint Deviation
t_other_torsion	17.94
t_omega_torsion	2.77
t_angle_deg	0.84
t_bond_d	0.007
t_dihedral_angle_d
t_gen_planes
t_it
t_chiral_improper_torsion
t_ideal_dist_contact

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2526
Nucleic Acid Atoms
Solvent Atoms	130
Heterogen Atoms	58

Software

Software
Software Name	Purpose
BUSTER	refinement
XDS	data reduction
STARANISO	data scaling
BUSTER	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 R01GM157729.