2VI1

Atomic resolution (1.04 A) structure of purified thaumatin I grown in sodium D-tartrate at 22 C.

X-RAY DIFFRACTION

---

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	MICROBATCH	7.1	295	MICROBATCH METHOD; PROTEIN AT 45 MG/ML IN 10MM SODIUM PHOSPHATE WITH 0.25M SODIUM D-TARTRATE (PH=7.1) AND 10% (V/V) GLYCEROL; CRYSTALS GROWN AT 22 C

Crystal Properties
Matthews coefficient	Solvent content
1.8	29.3

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 50.939	α = 90
b = 54.304	β = 90
c = 70.808	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	2007-08-23	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	1.04	20	99	0.05	36.1	7.2		93952		2

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	1.04	1.06	97.7		0.7	2.2	6

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	PDB ENTRY 1KWN	1.04	16.72	89156	4704	100	0.129	0.128	0.14	RANDOM	13.11

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]
0.15			-0.01		-0.14

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	40.544
r_dihedral_angle_4_deg	18.23
r_dihedral_angle_3_deg	10.963
r_dihedral_angle_1_deg	6.409
r_scangle_it	3.899
r_scbond_it	2.926
r_mcangle_it	2.382
r_mcbond_it	1.665
r_angle_refined_deg	1.56
r_nbtor_refined	0.312
r_nbd_refined	0.249
r_symmetry_vdw_refined	0.208
r_xyhbond_nbd_refined	0.12
r_symmetry_hbond_refined	0.103
r_chiral_restr	0.101
r_bond_refined_d	0.012
r_gen_planes_refined	0.009
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_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	308
Heterogen Atoms	18

Software

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