2QW1

Glucose/galactose binding protein bound to 3-O-methyl D-glucose

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6	298	2.0 M ammonium sulfate and 0.05 M sodium citrate dehydrate, 3-O-methyl glucose (5mM) was soaked in. 2.5 M Na Malonate cryoprotectant, pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
3.5	64.87

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 56.93	α = 90
b = 74.66	β = 90
c = 110.07	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	Bruker Platinum 135		2005-07-25	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	BRUKER AXS MICROSTAR	1.54

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	1.7	50	90.1	0.0341	25.15	6.31	52428	47220

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)
	1.7	1.75	56.8		0.2589	3.82	2.11	1972

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	2FW0	1.7	40	49733	43596	2291	87.66	0.18159	0.18159	0.18038	0.20426	RANDOM	13.533

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]
-0.43			0.65		-0.21

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.088
r_dihedral_angle_3_deg	12.981
r_dihedral_angle_4_deg	9.285
r_dihedral_angle_1_deg	5.331
r_scangle_it	3.664
r_scbond_it	2.21
r_angle_refined_deg	1.295
r_mcangle_it	1.266
r_mcbond_it	0.678
r_nbtor_refined	0.306
r_nbd_refined	0.198
r_symmetry_vdw_refined	0.155
r_xyhbond_nbd_refined	0.127
r_metal_ion_refined	0.118
r_symmetry_hbond_refined	0.115
r_chiral_restr	0.091
r_bond_refined_d	0.012
r_gen_planes_refined	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2319
Nucleic Acid Atoms
Solvent Atoms	351
Heterogen Atoms	16

Software

Software
Software Name	Purpose
REFMAC	refinement
PROTEUM PLUS	data collection
SAINT	data reduction
PROTEUM PLUS	data scaling
CNS	phasing