3KGC

Isolated ligand binding domain dimer of GluA2 ionotropic glutamate receptor in complex with glutamate, LY 404187 and ZK 200775

X-RAY DIFFRACTION

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Starting Model(s)

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

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5	277	19% PEG 4000, 0.3 M ammonium sulfate, 0.1 M sodium acetate, pH 5.0, vapor diffusion, hanging drop, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.64	53.53

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 66.657	α = 90
b = 95.586	β = 90
c = 97.047	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		CCD	ADSC QUANTUM 315		2007-10-19	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 5.0.2		ALS	5.0.2

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	1.55	50					81451

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	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	PDB entry 1FTL	1.55	36.063	81451	4307	94.78	0.1977	0.19628	0.22447	RANDOM	15.409

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]
-0.13			0.44		-0.31

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	28.518
r_dihedral_angle_4_deg	19.512
r_dihedral_angle_3_deg	11.998
r_dihedral_angle_1_deg	6.983
r_scangle_it	2.914
r_scbond_it	1.944
r_angle_refined_deg	1.321
r_mcangle_it	1.171
r_mcbond_it	0.736
r_nbtor_refined	0.306
r_nbd_refined	0.205
r_xyhbond_nbd_refined	0.114
r_symmetry_hbond_refined	0.113
r_symmetry_vdw_refined	0.11
r_chiral_restr	0.094
r_bond_refined_d	0.009
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	3867
Nucleic Acid Atoms
Solvent Atoms	518
Heterogen Atoms	71

Software

Software
Software Name	Purpose
REFMAC	refinement