4F22

Kainate bound to the K660A mutant of the ligand binding domain of GluA3

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5	277	14-15% PEG 8K, 0.1 M sodium cacodylate, 0.1-0.15 M zinc acetate, 0.25 M ammonium sulfate, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.76	55.47

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 47.657	α = 90
b = 49.028	β = 90
c = 136.639	γ = 90

Symmetry
Space Group	P 2 2 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	CCD	ADSC QUANTUM 210		2010-12-05	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	CHESS BEAMLINE A1	0.977	CHESS	A1

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	2.06	50	99.7	0.157	0.157	11.112	5.1				-3

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.08	2.12	100		0.312	0.312	2.261	4.5

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	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	3DLN	2.06	33.15	11137	19058	1033	98.4	0.189	0.1845	0.18129	0.24362	RANDOM	22.342

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]
0.04			-0.06		0.02

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	30.58
r_dihedral_angle_4_deg	23.983
r_dihedral_angle_3_deg	16.118
r_dihedral_angle_1_deg	6.315
r_scangle_it	5.112
r_scbond_it	3.099
r_mcangle_it	2.09
r_angle_refined_deg	1.897
r_mcbond_it	1.171
r_angle_other_deg	1.006
r_mcbond_other	0.305
r_chiral_restr	0.113
r_bond_refined_d	0.022
r_gen_planes_refined	0.009
r_bond_other_d	0.001
r_gen_planes_other	0.001
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_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2028
Nucleic Acid Atoms
Solvent Atoms	235
Heterogen Atoms	16

Software

Software
Software Name	Purpose
HKL-3000	data collection
PHENIX	model building
REFMAC	refinement
HKL-3000	data reduction
HKL-3000	data scaling
PHENIX	phasing