2JEK

Crystal structure of the conserved hypothetical protein Rv1873 from Mycobacterium tuberculosis at 1.38 A

X-RAY DIFFRACTION

---

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5	298	AMMONIUM SULPHATE, MES BUFFER, GLYCEROL, ETHYLEN GLYCOL, PH 6.5, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 298K

Crystal Properties
Matthews coefficient	Solvent content
1.77	30.7

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 33.44	α = 90
b = 31.627	β = 90.8
c = 53.187	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		2005-10-05	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)	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	1.38	50	94.2	0.03	15.5	1.9		21820

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	1.38	1.43	85.8		0.4	2	1.6

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	OTHER	THROUGHOUT	1.38	35	20717	1091	94.3	0.169	0.167	0.2	RANDOM	15.21

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]
-0.45		0.29	-0.29		0.75

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	26.473
r_dihedral_angle_4_deg	25.543
r_dihedral_angle_3_deg	11.361
r_dihedral_angle_1_deg	4.979
r_scangle_it	4.312
r_scbond_it	2.665
r_mcangle_it	1.574
r_angle_refined_deg	1.166
r_mcbond_it	0.934
r_nbtor_refined	0.311
r_symmetry_vdw_refined	0.191
r_nbd_refined	0.19
r_symmetry_hbond_refined	0.162
r_xyhbond_nbd_refined	0.111
r_chiral_restr	0.077
r_bond_refined_d	0.008
r_gen_planes_refined	0.005
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_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	1109
Nucleic Acid Atoms
Solvent Atoms	161
Heterogen Atoms	17

Software

Software
Software Name	Purpose
REFMAC	refinement
DENZO	data reduction
SCALEPACK	data scaling