1TX2

Dihydropteroate Synthetase, With Bound Inhibitor MANIC, From Bacillus anthracis

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1TWS	PDB entry 1TWS

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	9	291	lithium sulfate, tris, pH 9, VAPOR DIFFUSION, HANGING DROP, temperature 291K

Crystal Properties
Matthews coefficient	Solvent content
3	58.5

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 98.387	α = 90
b = 98.387	β = 90
c = 263.235	γ = 120

Symmetry
Space Group	P 62 2 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	MARMOSAIC 225 mm CCD	mirrors	2004-02-14	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 22-ID	1.0	APS	22-ID

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	1.83	81.7	100	0.071	23.6	11.1	63046	63046	-3

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	1.83	1.88	68.9		0.273	3.9	4.8	63046

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	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	PDB entry 1TWS	1.83	81.7	-3	59753	59753	3220	93.57	0.18382	0.18382	0.18249	0.20878	RANDOM	19.723

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]
2.69	1.34		2.69		-4.03

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	5.971
r_scangle_it	5.285
r_scbond_it	3.376
r_mcangle_it	2.004
r_angle_refined_deg	1.788
r_mcbond_it	1.107
r_angle_other_deg	0.922
r_symmetry_vdw_refined	0.458
r_symmetry_vdw_other	0.274
r_nbd_other	0.259
r_nbd_refined	0.236
r_symmetry_hbond_refined	0.23
r_xyhbond_nbd_refined	0.182
r_chiral_restr	0.107
r_nbtor_other	0.089
r_bond_refined_d	0.024
r_gen_planes_refined	0.008
r_gen_planes_other	0.004
r_bond_other_d	0.003

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4109
Nucleic Acid Atoms
Solvent Atoms	399
Heterogen Atoms	76

Software

Software
Software Name	Purpose
REFMAC	refinement
MAR345	data collection
CCP4	data scaling
CNS	phasing