2A15

X-ray Crystal Structure of RV0760 from Mycobacterium Tuberculosis at 1.68 Angstrom Resolution

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	Other		the model was obtained from a SAD solution from the data collected on SeMet variant of the same protein.

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7.5	297	1.6 M Na, K Phosphate, 100mM Hepes buffer pH 7.5, VAPOR DIFFUSION, SITTING DROP, temperature 297K

Crystal Properties
Matthews coefficient	Solvent content
2.65	53.28

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 55.6	α = 90
b = 55.6	β = 90
c = 104.74	γ = 120

Symmetry
Space Group	P 32 1 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 4		2004-04-20	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 8.3.1		ALS	8.3.1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	1.68	48.17	99.7			21399	21399

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1.68	1.74	99.3			7.6

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	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	the model was obtained from a SAD solution from the data collected on SeMet variant of the same protein.	1.68	48.17	20320	20320	1076	99.74	0.178	0.178	0.176	0.207	RANDOM	21.639

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]
0.54	0.27		0.54		-0.82

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.741
r_dihedral_angle_4_deg	17.906
r_dihedral_angle_3_deg	11.827
r_scangle_it	9.11
r_scbond_it	6.551
r_dihedral_angle_1_deg	6.462
r_mcangle_it	4.043
r_mcbond_it	3.025
r_angle_refined_deg	1.571
r_nbtor_refined	0.312
r_nbd_refined	0.208
r_symmetry_vdw_refined	0.163
r_symmetry_hbond_refined	0.161
r_xyhbond_nbd_refined	0.158
r_chiral_restr	0.135
r_bond_refined_d	0.015
r_gen_planes_refined	0.006
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_refined
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_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1059
Nucleic Acid Atoms
Solvent Atoms	190
Heterogen Atoms	9

Software

Software
Software Name	Purpose
REFMAC	refinement
SCALEPACK	data scaling
MOLREP	phasing
ELVES	refinement
ELVES	data reduction