3LMK

Ligand Binding Domain of Metabotropoc glutamate receptor mGluR5 complexed with glutamate

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7.5	298	25% PEG 8000, 0.2M NaCl, 0.1M Hepes. protein concentration 5mg/mL plus 5mM L-Glu. Cryoprotectant used: 33% PEG 8000, 0.2M NaCl and 0.1M Hepes plus 20% Glycerol, pH 7.5, VAPOR DIFFUSION, SITTING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.47	50.29

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 71.875	α = 90
b = 98.346	β = 90
c = 155.239	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	IMAGE PLATE	RIGAKU RAXIS HTC		2010-01-12	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU FR-E SUPERBRIGHT	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	2.44	83.08	99.8	0.079	22.3	7		41601

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	2.44	2.502	100		1.9	7

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	2.44	83.08	39409	2095	99.32	0.23422	0.23178	0.2812	RANDOM	31.915

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]
-0.76			3.52		-2.76

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.023
r_dihedral_angle_3_deg	15.409
r_dihedral_angle_4_deg	13.468
r_dihedral_angle_1_deg	5.258
r_scangle_it	2.021
r_scbond_it	1.217
r_angle_refined_deg	1.123
r_mcangle_it	0.751
r_mcbond_it	0.396
r_chiral_restr	0.076
r_bond_refined_d	0.008
r_gen_planes_refined	0.004
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	6744
Nucleic Acid Atoms
Solvent Atoms	89
Heterogen Atoms	51

Software

Software
Software Name	Purpose
MOLREP	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
StructureStudio	data collection
DENZO	data reduction
SCALEPACK	data scaling
HKL-2000	data scaling