3OOW

Octameric structure of the phosphoribosylaminoimidazole carboxylase catalytic subunit from Francisella tularensis subsp. tularensis SCHU S4.

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8.5	295	0.2 M NH4 Dihydrogen PO4, 0.1 M Tris, 6% MPD, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 295K

Crystal Properties
Matthews coefficient	Solvent content
1.92	36.08

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 88.56	α = 90
b = 96.3	β = 90
c = 128.62	γ = 90

Symmetry
Space Group	P 21 21 21

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	MAR CCD	MIRROR	2010-08-13	M	MOLECULAR REPLACEMENT

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 21-ID-D	0.75145	APS	21-ID-D

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	1.75	30	99	0.08	12.54	7.4	110138	110138		-3	31.8

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)
	1.75	1.78	98.8		0.46	3.38	7.7	5387

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 (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	SAD	THROUGHOUT	PDB entry 3OPQ	1.75	77.09	104329	104329	5493	29.38	0.17016	0.16833	0.2051	RANDOM	20.705

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]
-0.99			2.69		-1.7

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.63
r_dihedral_angle_4_deg	22.651
r_dihedral_angle_3_deg	11.603
r_dihedral_angle_1_deg	5.154
r_scangle_it	4.625
r_scbond_it	3.158
r_mcangle_it	1.726
r_angle_refined_deg	1.5
r_angle_other_deg	0.962
r_mcbond_it	0.954

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.63
r_dihedral_angle_4_deg	22.651
r_dihedral_angle_3_deg	11.603
r_dihedral_angle_1_deg	5.154
r_scangle_it	4.625
r_scbond_it	3.158
r_mcangle_it	1.726
r_angle_refined_deg	1.5
r_angle_other_deg	0.962
r_mcbond_it	0.954
r_mcbond_other	0.276
r_chiral_restr	0.09
r_bond_refined_d	0.017
r_gen_planes_refined	0.007
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	9454
Nucleic Acid Atoms
Solvent Atoms	545
Heterogen Atoms	170

Software

Software
Software Name	Purpose
Blu-Ice	data collection
CCP4	model building
MrBUMP	phasing
PHENIX	model building
REFMAC	refinement
XSCALE	data scaling
CCP4	phasing
PHENIX	phasing

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.