3O6H

Ligand-binding domain of GluA2 (flip) ionotropic glutamate receptor in complex with an allosteric modulator

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	4	277	18% PEG 4000, 100mM Sodium Cacodylate pH 4.0, 50mM Lithium Sulphate, 5% Glycerol, VAPOR DIFFUSION, HANGING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.27	45.7

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 63.89	α = 90
b = 87.45	β = 90
c = 47.32	γ = 90

Symmetry
Space Group	P 21 21 2

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 IV++		2006-09-08	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU MICROMAX-007	1.54178

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	2.1	43.73	94.7	0.086	9.8	5.17	15217	15217	2	2	34.7

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)
	2.1	2.18	91.4		0.332	4	5.28	1441

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	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	2.1	43.73	14467	14467	750	94.64	0.21943	0.21943	0.21714	0.26295	RANDOM	23.599

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]
-0.81			1.69		-0.88

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.651
r_dihedral_angle_4_deg	19.169
r_dihedral_angle_3_deg	14.748
r_dihedral_angle_1_deg	5.85
r_scangle_it	2.955
r_scbond_it	2.233
r_angle_refined_deg	1.366
r_mcbond_it	1.333
r_mcangle_it	1.201
r_angle_other_deg	1.167
r_symmetry_vdw_other	0.271
r_nbd_refined	0.196
r_nbd_other	0.191
r_xyhbond_nbd_refined	0.188
r_symmetry_vdw_refined	0.188
r_nbtor_refined	0.173
r_symmetry_hbond_refined	0.17
r_mcbond_other	0.15
r_chiral_restr	0.114
r_nbtor_other	0.086
r_bond_refined_d	0.013
r_bond_other_d	0.006
r_gen_planes_refined	0.004
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2033
Nucleic Acid Atoms
Solvent Atoms	80
Heterogen Atoms	66

Software

Software
Software Name	Purpose
CrystalClear	data collection
AMoRE	phasing
REFMAC	refinement
CrystalClear	data reduction
CrystalClear	data scaling