Experiment: 4H7Q

Crystal structure of branched-chain alpha-ketoacid dehydrogenase kinase in complex with alpha-ketoisocaproic acid and ADP

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION	7.5	289	14% peg8000, 0.1 M Tris, 1.2 M NaCl, 125mM KCl, 150mM Arg-HCl,20mM MgCl2, 5% glycerol, pH 7.5, VAPOR DIFFUSION, temperature 289K

Crystal Properties
Matthews coefficient	Solvent content
3.22	61.75

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 128.516	α = 90
b = 128.516	β = 90
c = 73.797	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	CCD	ADSC QUANTUM 315r	mirrors	2012-06-14	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-ID	1.0	APS	19-ID

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	50	99.7	0.056	0.048	32.5	9.4	36801	36697	2	2

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	2.1	2.14	100		0.758	0.704	3.1	9.5

Refinement

Statistics
Diffraction ID	Structure Solution Method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	2.1	40.64	1.33	36745	36639	2000	99.71	0.2108	0.2095	0.2055	0.2342	0.2275

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]
-0.7165			-0.7165		1.433

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	16.65
f_angle_d	1.097
f_chiral_restr	0.071
f_bond_d	0.009
f_plane_restr	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2449
Nucleic Acid Atoms
Solvent Atoms	73
Heterogen Atoms	38

Software

Software
Software Name	Purpose
HKL-3000	data collection
PHENIX	model building
PHENIX	refinement
HKL-3000	data reduction
HKL-3000	data scaling
PHENIX	phasing