2VU6

Atomic resolution (0.95 A) structure of purified Thaumatin I grown in sodium meso-tartrate at 19 C.

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	MICROBATCH	7.3	292	MICROBATCH METHOD; PROTEIN AT 26 MG/ML IN 10MM SODIUM PHOSPHATE WITH 62.5 MM SODIUM MESO-TARTRATE (PH=7.3) AND 2.5% (V/V) GLYCEROL; CRYSTALS GROWN AT 19 C.

Crystal Properties
Matthews coefficient	Solvent content
1.7	29

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 50.886	α = 90
b = 54.522	β = 90
c = 70.872	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 CCD	TOROIDAL FOCUSING MIRROR	2008-04-22	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X6A		NSLS	X6A

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	0.95	12	99.5	0.06	29.8	5.9		123941		2

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	0.95	0.97	100			5.6

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	MOLECULAR REPLACEMENT	THROUGHOUT	0.95	11.85	117584	6208	100	0.118	0.117	0.136	RANDOM	8.39

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]
0.31			0.11		-0.42

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	41.361
r_dihedral_angle_4_deg	15.733
r_dihedral_angle_3_deg	10.905
r_dihedral_angle_1_deg	6.704
r_scangle_it	4.479
r_scbond_it	3.625
r_mcangle_it	2.781
r_mcbond_it	2.296
r_angle_refined_deg	1.961
r_angle_other_deg	1.037
r_nbd_refined	0.379
r_symmetry_vdw_other	0.366
r_symmetry_vdw_refined	0.239
r_nbd_other	0.196
r_symmetry_hbond_refined	0.188
r_nbtor_refined	0.187
r_xyhbond_nbd_refined	0.181
r_chiral_restr	0.125
r_nbtor_other	0.092
r_bond_refined_d	0.021
r_gen_planes_refined	0.011
r_bond_other_d	0.004
r_gen_planes_other	0.002
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_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	1551
Nucleic Acid Atoms
Solvent Atoms	341
Heterogen Atoms	18

Software

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