3B6W

Crystal Structure of the GLUR2 Ligand Binding Core (S1S2J) T686S Mutant in Complex with Glutamate at 1.7 Resolution

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8.5	293	0.1 M Tris-HCl, 0.15-0.2 M lithium sulfate, 18-21% PEG4000, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.41	48.87

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 47.817	α = 90
b = 95.84	β = 93.43
c = 122.886	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	100	CCD	ADSC QUANTUM 315		2005-08-03	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X29A	1.1	NSLS	X29A

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	123		0.059		3.4		119308

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	1.744			0.297		3.4

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	1.7	123	113281	6005	98.26	0.22677	0.22503	0.26007	RANDOM	20.988

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]
0.07		-0.2	0.1		-0.2

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	31.231
r_dihedral_angle_4_deg	19.034
r_dihedral_angle_3_deg	14.456
r_dihedral_angle_1_deg	5.81
r_scangle_it	3.542
r_scbond_it	2.339
r_angle_refined_deg	1.438
r_mcangle_it	1.424
r_mcbond_it	0.924
r_nbtor_refined	0.301
r_nbd_refined	0.223
r_symmetry_vdw_refined	0.223
r_xyhbond_nbd_refined	0.127
r_chiral_restr	0.103
r_symmetry_hbond_refined	0.083
r_bond_refined_d	0.014
r_gen_planes_refined	0.006
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_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	7806
Nucleic Acid Atoms
Solvent Atoms	581
Heterogen Atoms	20

Software

Software
Software Name	Purpose
REFMAC	refinement
CBASS	data collection
MOSFLM	data reduction
SCALA	data scaling
PHASER	phasing