2F64

Crystal structure of Nucleoside 2-deoxyribosyltransferase from Trypanosoma brucei at 1.6 A resolution with 1-METHYLQUINOLIN-2(1H)-ONE bound

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2A0K	pdb entry 2A0K

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	4.6	277	30 % PEG MME 2000, 0.2 ammonium sulfate, 0.1 sodium acetate trihydrate pH 4.6, VAPOR DIFFUSION, SITTING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.63	53.18

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 59.827	α = 90
b = 75.351	β = 90.01
c = 87.048	γ = 90

Symmetry
Space Group	C 1 2 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	MARRESEARCH		2005-05-14	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL1-5	0.92014	SSRL	BL1-5

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Sym 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	1.6	30	95.64	0.049	11	2.3		46217			15.665

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.6	1.686	92.53		0.165	2.2	2.2	6400

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 (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	pdb entry 2A0K	1.6	30	46217	2484	95.64	0.1663	0.1663	0.1652	0.18712	RANDOM	13.735

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		0.04	-0.04		0.05

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	31.509
r_dihedral_angle_4_deg	15.864
r_dihedral_angle_3_deg	10.64
r_dihedral_angle_1_deg	4.869
r_scangle_it	3.146
r_scbond_it	2.203
r_mcangle_it	1.486
r_mcbond_it	1.437
r_angle_refined_deg	0.934
r_angle_other_deg	0.728
r_mcbond_other	0.241
r_symmetry_vdw_other	0.24
r_nbd_refined	0.213
r_nbtor_refined	0.182
r_nbd_other	0.166
r_symmetry_vdw_refined	0.1
r_xyhbond_nbd_refined	0.097
r_symmetry_hbond_refined	0.088
r_nbtor_other	0.081
r_chiral_restr	0.059
r_bond_refined_d	0.006
r_gen_planes_refined	0.003
r_bond_other_d	0.001
r_gen_planes_other	0.001
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2518
Nucleic Acid Atoms
Solvent Atoms	374
Heterogen Atoms	46

Software

Software
Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction
CCP4	data scaling
MOLREP	phasing