2IBY

Crystallographic and kinetic studies of human mitochondrial acetoacetyl-CoA thiolase (T2): the importance of potassium and chloride for its structure and function

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1WL4	PDB entry 1WL4

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5	277	18% PEG 5000 monomethylether, 0.1M MES, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 277.0K

Crystal Properties
Matthews coefficient	Solvent content
2.4	48.78

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 75.349	α = 90
b = 106.746	β = 103.06
c = 101.66	γ = 90

Symmetry
Space Group	P 1 21 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 315	mirrors	2006-03-01	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID23-1	1.07225	ESRF	ID23-1

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	1.85	73.32	99.9	0.069	0.069	13.7	4.1	133490	133365			26

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	1.85	1.95	100		0.324	0.324	4.6	4.1	19414

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	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	PDB entry 1WL4	1.85	73.32	133365	126697	6668	100	0.16607	0.16411	0.20312	RANDOM	25.388

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]
0.07		-0.21	0.02		-0.18

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	41.298
r_dihedral_angle_4_deg	14.075
r_dihedral_angle_3_deg	12.462
r_dihedral_angle_1_deg	8.07
r_scangle_it	2.227
r_mcangle_it	1.995
r_scbond_it	1.595
r_mcbond_it	1.341
r_angle_refined_deg	1.305
r_nbtor_refined	0.297

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	41.298
r_dihedral_angle_4_deg	14.075
r_dihedral_angle_3_deg	12.462
r_dihedral_angle_1_deg	8.07
r_scangle_it	2.227
r_mcangle_it	1.995
r_scbond_it	1.595
r_mcbond_it	1.341
r_angle_refined_deg	1.305
r_nbtor_refined	0.297
r_nbd_refined	0.208
r_symmetry_vdw_refined	0.205
r_symmetry_hbond_refined	0.128
r_xyhbond_nbd_refined	0.126
r_chiral_restr	0.087
r_metal_ion_refined	0.058
r_bond_refined_d	0.011
r_gen_planes_refined	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	11522
Nucleic Acid Atoms
Solvent Atoms	1162
Heterogen Atoms	224

Software

Software
Software Name	Purpose
REFMAC	refinement
DNA	data collection
XDS	data reduction
XDS	data scaling
MOLREP	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.