5LC1

L-threonine dehydrogenase from Trypanosoma brucei with NAD and the inhibitor pyruvate bound.

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.5	293	0.1 M HEPES pH 7.5, 20 % w/v PEG 10K; TDH 2.0 mg/ml, 1 mM NAD(+), 30 mM pyruvate.

Crystal Properties
Matthews coefficient	Solvent content
2.2	45.1

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 132.04	α = 90
b = 276.49	β = 90
c = 55.74	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		2009-11-11	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID29	1.074	ESRF	ID29

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	2.1	95.5	97.3	0.145	11.4	7.5		117204			21.2

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	2.1	2.2	81.9		0.525	3.2	3.3

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	5L9A	2.1	95.5	111527	5563	97.33	0.14952	0.14654	0.20763	RANDOM	22.767

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]
0.01			0.76		-0.77

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.188
r_dihedral_angle_4_deg	18.605
r_dihedral_angle_3_deg	15.461
r_long_range_B_refined	7.489
r_long_range_B_other	7.124
r_dihedral_angle_1_deg	6.874
r_scangle_other	4.601
r_scbond_it	2.986
r_scbond_other	2.986
r_mcangle_other	2.675
r_mcangle_it	2.674
r_angle_refined_deg	1.794
r_mcbond_it	1.753
r_mcbond_other	1.752
r_angle_other_deg	1.035
r_chiral_restr	0.108
r_bond_refined_d	0.016
r_gen_planes_refined	0.008
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	15010
Nucleic Acid Atoms
Solvent Atoms	1962
Heterogen Atoms	326

Software

Software
Software Name	Purpose
MOSFLM	data reduction
MOLREP	phasing
REFMAC	refinement