3BH2

Structural Studies of Acetoacetate Decarboxylase

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5.95	281	40mM Phosphate buffer pH 5.95, 100mM Sarcosine, 15% PEG 3350, 18% Glycerol, VAPOR DIFFUSION, HANGING DROP, temperature 281K

Crystal Properties
Matthews coefficient	Solvent content
2.73	54.99

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 104.07	α = 90
b = 104.07	β = 90
c = 578.094	γ = 120

Symmetry
Space Group	H 3 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 315			M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X25	1.0000	NSLS	X25

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	2.4	50	98.3	0.093	13			47172

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)
	2.4	2.51	93.8		0.354	2.4

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	2.4	45.79	41399	4638	97.6	0.20064	0.19581	0.24429	RANDOM	36.031

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]
-0.03	-0.02		-0.03		0.05

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.03
r_dihedral_angle_4_deg	18.908
r_dihedral_angle_3_deg	18.641
r_dihedral_angle_1_deg	6.731
r_scangle_it	1.926
r_angle_refined_deg	1.283
r_scbond_it	1.14
r_mcangle_it	0.711
r_mcbond_it	0.41
r_nbtor_refined	0.307
r_nbd_refined	0.204
r_symmetry_hbond_refined	0.174
r_symmetry_vdw_refined	0.173
r_xyhbond_nbd_refined	0.133
r_chiral_restr	0.081
r_bond_refined_d	0.009
r_gen_planes_refined	0.004
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	7770
Nucleic Acid Atoms
Solvent Atoms	319
Heterogen Atoms

Software

Software
Software Name	Purpose
PDB_EXTRACT	data extraction
CBASS	data collection
HKL-2000	data reduction
HKL-2000	data scaling
REFMAC	phasing
REFMAC	refinement