1A78

COMPLEX OF TOAD OVARY GALECTIN WITH THIO-DIGALACTOSE

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		6.6		DROPS OF EQUAL AMOUNT OF 10-12 MG/ML PROTEIN AND RESERVOIR SOLUTION WERE EQUILIBRATED AGAINST 1 ML OF (NH4)2SO4 AT 56% SATURATION IN 100MM TRIS-ACETATE BUFFER, PH 6.6 AND 1% MPD AND 1% DTT

Crystal Properties
Matthews coefficient	Solvent content
2.5	50.88

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 51.8	α = 90
b = 51	β = 97.2
c = 56.3	γ = 90

Symmetry
Space Group	P 1 21 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	300	IMAGE PLATE	RIGAKU RAXIS IIC	MONOCHROMATOR	1994-12-19	M

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RUH3R

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (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	1.945	15	68.6	0.086	0.086		2.3		14540		0.5

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	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 1GAN	2	6	2	15569	1550	81.5	0.194	0.194	0.256	RANDOM	36.32

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]

RMS Deviations
Key	Refinement Restraint Deviation
x_dihedral_angle_d	28.12
x_scangle_it	3.94
x_mcangle_it	3.13
x_scbond_it	2.72
x_mcbond_it	1.82
x_angle_deg	1.739
x_improper_angle_d	1.4
x_bond_d	0.011
x_bond_d_na
x_bond_d_prot
x_angle_d
x_angle_d_na
x_angle_d_prot
x_angle_deg_na
x_angle_deg_prot
x_dihedral_angle_d_na
x_dihedral_angle_d_prot
x_improper_angle_d_na
x_improper_angle_d_prot

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2070
Nucleic Acid Atoms
Solvent Atoms	46
Heterogen Atoms	54

Software

Software
Software Name	Purpose
X-PLOR	model building
X-PLOR	refinement
R-AXIS	data reduction
R-AXIS	data scaling
X-PLOR	phasing