3K5P

Crystal structure of amino acid-binding ACT: D-isomer specific 2-hydroxyacid dehydrogenase catalytic domain from Brucella melitensis

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2P9C

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6	289	28 mg/mL protein in 25 mM Hepes pH 7, 0.3 M NaCl, 10% glycerol against Cryo Full condition B3: 50% PEG 400, 5% PEG 1000, 10% glycerol, 0.1 M MES pH 6.0, crystal tracking ID 204157b3, VAPOR DIFFUSION, SITTING DROP, temperature 289K

Crystal Properties
Matthews coefficient	Solvent content
2.91	57.67

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 97.891	α = 90
b = 97.891	β = 90
c = 189.215	γ = 120

Symmetry
Space Group	P 62 2 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	RIGAKU SATURN 944+		2009-10-01	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU FR-E+ SUPERBRIGHT	1.5418

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	2.15	38.683	97.5	0.09	33.2	17.3		29302

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)
1	2.15	2.23	82		0.554	3.28	7.7	2412

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	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	2p9c	2.15	38.683	29249	1485	97.52	0.184	0.182	0.216	RANDOM	33.332

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]
0.61	0.31		0.61		-0.92

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	31.747
r_dihedral_angle_4_deg	14.715
r_dihedral_angle_3_deg	13.216
r_dihedral_angle_1_deg	5.6
r_scangle_it	3.561
r_scbond_it	2.161
r_angle_refined_deg	1.385
r_mcangle_it	1.247
r_mcbond_it	0.676
r_chiral_restr	0.086

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	31.747
r_dihedral_angle_4_deg	14.715
r_dihedral_angle_3_deg	13.216
r_dihedral_angle_1_deg	5.6
r_scangle_it	3.561
r_scbond_it	2.161
r_angle_refined_deg	1.385
r_mcangle_it	1.247
r_mcbond_it	0.676
r_chiral_restr	0.086
r_bond_refined_d	0.014
r_gen_planes_refined	0.006

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3028
Nucleic Acid Atoms
Solvent Atoms	206
Heterogen Atoms	22

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
PHASER	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
HKL-2000	data reduction
HKL-2000	data scaling

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.