5MHA

D-2-hydroxyacid dehydrogenases (D2-HDH) from Haloferax mediterranei in complex with a mixture of 2-ketohexanoic acid and 2-hydroxyhexanoic acid, and NADPH (1.57 A resolution)

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8	290	Protein buffer: 20 mM Tris_HCl pH8, 3 mM EDTA and 1 M NaCl Crystallisation conditions: 0.1 M Tris-HCl pH8, 0.5 M Mg acetate and 24 % PEG3350 Ligands: 5 mM NADPH and 50 mM 2-ketohexanoic acid

Crystal Properties
Matthews coefficient	Solvent content
2.38	48.25

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 62.54	α = 90
b = 76.3	β = 97.04
c = 66.99	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		2010-07-02	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	DIAMOND BEAMLINE I04	0.9763	Diamond	I04

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	1.57	38.15	94.8	0.039	13.6	2.1		81835

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	1.57	1.61	93.7		0.397	2.2	2.2

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	1.57	38.15	77708	4104	94.54	0.17571	0.17355	0.21602	RANDOM	29.656

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]
-2.05		0.42	0.88		1.03

RMS Deviations
Key	Refinement Restraint Deviation
r_scbond_other	33.142
r_scbond_it	33.133
r_dihedral_angle_2_deg	32.181
r_scangle_other	25.398
r_long_range_B_refined	22.849
r_long_range_B_other	22.847
r_dihedral_angle_4_deg	17.228
r_mcbond_it	16.829
r_mcbond_other	16.829
r_mcangle_it	14.521
r_mcangle_other	14.519
r_dihedral_angle_3_deg	12.064
r_dihedral_angle_1_deg	6.185
r_angle_refined_deg	1.549
r_angle_other_deg	0.974
r_chiral_restr	0.083
r_bond_refined_d	0.011
r_gen_planes_refined	0.007
r_bond_other_d	0.002
r_gen_planes_other	0.002
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_scangle_it
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4698
Nucleic Acid Atoms
Solvent Atoms	446
Heterogen Atoms	167

Software

Software
Software Name	Purpose
REFMAC	refinement
iMOSFLM	data reduction
SCALA	data scaling
PHASER	phasing