5VG6

Crystal structure of D-isomer specific 2-hydroxyacid dehydrogenase from Xanthobacter autotrophicus Py2 in complex with NADPH and MES.

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6.5	289	0.2 ul of 14 mg/ml protein in 20 mM HEPES pH 7.5, 150 mM NaCl, 10% Glycerol, 0.1% Sodium Azide, 0.5 mM TCEP, 50mM D-lactate, and 5 mM NADPH were mixed with 0.2 ul of the MCSG-2 condition #13 (0.1M MES monohydrate pH=6.5, 12%w/v PEG 20K) and equilibrated against 1.5 M NaCl solution in 96 Well 3 drop Crystallization Plate (Swissci). Before crystallization protein was incubated with 1/50 v/v of 1 mg/ml TEV solution at 289 K for 1 hour

Crystal Properties
Matthews coefficient	Solvent content
2.74	55.16

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 132.514	α = 90
b = 311.036	β = 90
c = 98.977	γ = 90

Symmetry
Space Group	P 21 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		2015-04-04	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-ID	0.9793	APS	19-ID

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	R Sym I (Observed)	Rrim I (All)	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	2.2	50	100	0.114	0.114	0.128	0.055	0.8	5.1	5.3		207487		-3	35.8

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Rrim I (All)	Rpim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.2	2.24	100		0.753	0.753	0.85	0.389	0.801	1.9	4.7

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	4XA8	2.2	50	196974	10343	99.9	0.2013	0.1996	0.2334	RANDOM	57.011

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]
-0.49			1.05		-0.57

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	30.544
r_dihedral_angle_4_deg	12.95
r_dihedral_angle_3_deg	12.303
r_dihedral_angle_1_deg	5.014
r_angle_refined_deg	1.334
r_angle_other_deg	1.251
r_chiral_restr	0.074
r_bond_refined_d	0.009
r_gen_planes_refined	0.007
r_gen_planes_other	0.003

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	30.544
r_dihedral_angle_4_deg	12.95
r_dihedral_angle_3_deg	12.303
r_dihedral_angle_1_deg	5.014
r_angle_refined_deg	1.334
r_angle_other_deg	1.251
r_chiral_restr	0.074
r_bond_refined_d	0.009
r_gen_planes_refined	0.007
r_gen_planes_other	0.003
r_bond_other_d	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	22504
Nucleic Acid Atoms
Solvent Atoms	2680
Heterogen Atoms	588

Software

Software
Software Name	Purpose
HKL-3000	data collection
HKL-3000	data reduction
HKL-3000	data scaling
HKL-3000	phasing
MOLREP	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
SCALEPACK	data scaling

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.