4JC1

Galectin-3 carbohydrate recognition domain in complex with thiodigalactoside

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1A3K	pdb entry 1A3K

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7	293	Hanging drops consisting of equal volumes of protein solution (100 mM lactose in PBS pH 7.5 supplemented with 2 mM CaCl2 and a protein concentration of 10 mg ml 1) and reservoir solution [100 mM Tris HCl, 31%(w/v) PEG 6000, 100 mM MgCl2 and 8 mM -mercaptoethanol, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.11	41.59

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 36.788	α = 90
b = 58.003	β = 90
c = 63.378	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	295	CCD	BRUKER SMART 6000		2011-06-23	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	MACSCIENCE	1.5418

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	1.5	58	95.5	0.04	20.9	5.4	115029	21329	1	1

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	1.5	1.58	84.1		0.142	3.5	1.5

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	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	pdb entry 1A3K	1.5	42.79	1	21329	20202	1085	95.14	0.18	0.13609	0.13537	0.14938	RANDOM	11.799

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]
0.77			-0.6		-0.17

RMS Deviations
Key	Refinement Restraint Deviation
r_sphericity_free	9.118
r_dihedral_angle_1_deg	6.752
r_sphericity_bonded	5.214
r_rigid_bond_restr	3.465
r_angle_refined_deg	1.309
r_angle_other_deg	0.782
r_chiral_restr	0.087
r_bond_refined_d	0.008
r_gen_planes_refined	0.005
r_gen_planes_other	0.002

RMS Deviations
Key	Refinement Restraint Deviation
r_sphericity_free	9.118
r_dihedral_angle_1_deg	6.752
r_sphericity_bonded	5.214
r_rigid_bond_restr	3.465
r_angle_refined_deg	1.309
r_angle_other_deg	0.782
r_chiral_restr	0.087
r_bond_refined_d	0.008
r_gen_planes_refined	0.005
r_gen_planes_other	0.002
r_bond_other_d	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1108
Nucleic Acid Atoms
Solvent Atoms	135
Heterogen Atoms	28

Software

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

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.