2WPE

Trypanosoma brucei trypanothione reductase in complex with 3,4- dihydroquinazoline inhibitor (DDD00073359)

X-RAY DIFFRACTION

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Starting Model(s)

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

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		8		15MG/ML PROTEIN IN 25MM HEPES PH 7.5 AND 50MM NABR EQUILIBRATED AGAINST 24% MPD, 10% PEG3350 AND 40MM IMIDAZOLE PH 8.0

Crystal Properties
Matthews coefficient	Solvent content
2.45	49.74

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 100.64	α = 90
b = 63.29	β = 98.2
c = 169.16	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 CCD	MIRRORS	2008-02-25	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-1		ESRF	ID14-1

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	46	95.3	0.12	15.9	4.4		123374		2	31.6

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	2.15	87.7		0.46	3.2	4.4

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	PDB ENTRY 2WOI	2.1	45.979	123374	6169	100	0.171	0.168	0.23	RANDOM	27.723

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]
1.345		0.38	-0.156		-1.081

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.647
r_dihedral_angle_4_deg	18.402
r_dihedral_angle_3_deg	16.98
r_dihedral_angle_1_deg	6.861
r_scangle_it	4.847
r_scbond_it	3.179
r_angle_refined_deg	1.946
r_mcangle_it	1.839
r_mcbond_it	1.096
r_nbtor_refined	0.314
r_symmetry_vdw_refined	0.262
r_nbd_refined	0.217
r_symmetry_hbond_refined	0.184
r_xyhbond_nbd_refined	0.158
r_chiral_restr	0.139
r_metal_ion_refined	0.132
r_bond_refined_d	0.024
r_gen_planes_refined	0.011
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_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_mcangle_other
r_scbond_other
r_scangle_other
r_long_range_B_refined
r_long_range_B_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	14796
Nucleic Acid Atoms
Solvent Atoms	1216
Heterogen Atoms	362

Software

Software
Software Name	Purpose
REFMAC	refinement
XDS	data reduction
XSCALE	data scaling
MOLREP	phasing