1VQ3

Crystal structure of Phosphoribosylformylglycinamidine synthase, purS subunit (EC 6.3.5.3) (TM1244) from Thermotoga maritima at 1.90 A resolution

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION,SITTING DROP,NANODROP		277	20.0% Glycerol, 24.0% PEG-1500,, VAPOR DIFFUSION,SITTING DROP,NANODROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.29	45.84

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 58.27	α = 90
b = 73.433	β = 90
c = 92.567	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	ADSC		2003-12-13	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 8.2.1		ALS	8.2.1

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	1.9	49.31	91.9	0.056	16.3	3.8		29272			33.83

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	1.9	1.95	62.7		0.467	2.3	3	1434

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	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	MOLECULAR REPLACEMENT	THROUGHOUT	1T4A	1.9	49.31	28282	957	91.35	0.1799	0.17783	0.2345	RANDOM	24.155

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]
-0.87			1.7		-0.83

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.184
r_dihedral_angle_4_deg	17.171
r_dihedral_angle_3_deg	13.98
r_scangle_it	7.142
r_dihedral_angle_1_deg	5.739
r_scbond_it	5.446
r_mcangle_it	3.178
r_mcbond_it	2.765
r_angle_refined_deg	1.553
r_mcbond_other	1.032
r_angle_other_deg	0.796
r_symmetry_vdw_other	0.307
r_symmetry_vdw_refined	0.253
r_nbd_refined	0.197
r_nbd_other	0.185
r_xyhbond_nbd_refined	0.167
r_symmetry_hbond_refined	0.163
r_chiral_restr	0.099
r_nbtor_other	0.086
r_bond_refined_d	0.017
r_gen_planes_refined	0.007
r_bond_other_d	0.002
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2789
Nucleic Acid Atoms
Solvent Atoms	301
Heterogen Atoms

Software

Software
Software Name	Purpose
MOSFLM	data reduction
SCALA	data scaling
REFMAC	refinement
CCP4	data scaling