1XRE

Crystal Structure of SodA-2 (BA5696) from Bacillus anthracis at 1.8A Resolution.

X-RAY DIFFRACTION

---

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1JR9	PDB ENTRY 1JR9

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8	291	PEG 3350, MgCl2, TRIS, pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 291K

Crystal Properties
Matthews coefficient	Solvent content
2.2	42.6

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 54.842	α = 90
b = 69.866	β = 106.85
c = 56.574	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 QUANTUM 4	Rh coated Si mirror	2004-07-23	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SRS BEAMLINE PX9.6	0.87000	SRS	PX9.6

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	1.8	50	98.8	0.071	26.33	3.6	37730	37730

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)
	1.8	1.86	94		0.597	1.94	3	3554

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	PDB ENTRY 1JR9	1.8	29.09	35719	35719	1879	100	0.1617	0.1617	0.15872	0.21932	RANDOM	27.488

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]
-0.02		0.09	-0.03		0.1

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	38.477
r_dihedral_angle_3_deg	15.443
r_dihedral_angle_4_deg	12.473
r_sphericity_free	6.776
r_dihedral_angle_1_deg	6.41
r_scangle_it	5.077
r_scbond_it	3.957
r_rigid_bond_restr	3.293
r_sphericity_bonded	2.851
r_mcangle_it	2.488
r_mcbond_it	1.883
r_angle_refined_deg	1.444
r_angle_other_deg	0.91
r_mcbond_other	0.697
r_symmetry_hbond_refined	0.249
r_symmetry_vdw_other	0.227
r_nbd_refined	0.213
r_nbtor_refined	0.183
r_nbd_other	0.182
r_symmetry_vdw_refined	0.168
r_xyhbond_nbd_refined	0.164
r_chiral_restr	0.097
r_nbtor_other	0.084
r_bond_refined_d	0.015
r_gen_planes_refined	0.006
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

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3284
Nucleic Acid Atoms
Solvent Atoms	374
Heterogen Atoms	2

Software

Software
Software Name	Purpose
REFMAC	refinement
HKL-2000	data reduction
SCALEPACK	data scaling
MOLREP	phasing