4PE5

Crystal Structure of GluN1a/GluN2B NMDA Receptor Ion Channel

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	SYNCHROTRON
Source details	APS BEAMLINE 23-ID-B
Synchrotron site	APS
Beamline	23-ID-B
Temperature [K]	100
Detector technology	CCD
Collection date	2013-12-07
Detector	MARMOSAIC 300 mm CCD
Wavelength(s)	1.0332
Spacegroup name	P 1 21 1
Unit cell lengths	116.825, 163.186, 163.137
Unit cell angles	90.00, 93.81, 90.00

Refinement procedure

Resolution	29.717 - 3.960
R-factor	0.2583
Rwork	0.256
R-free	0.29530
Structure solution method	MOLECULAR REPLACEMENT
Starting model (for MR)	PDB ENTRIES 3QEL 2a5t
RMSD bond length	0.002
RMSD bond angle	0.614
Data reduction software	HKL-2000
Data scaling software	HKL-2000
Refinement software	PHENIX ((phenix.refine: 1.8.4_1496))

Data quality characteristics

	Overall	Inner shell	Outer shell
Low resolution limit [Å]	50.000	50.000	4.090
High resolution limit [Å]	3.950	8.500	3.950
Rmerge	0.087	0.050
Total number of observations	197482
Number of reflections	52241
<I/σ(I)>	9.3
Completeness [%]	98.6	90.9	99.4
Redundancy	3.8	3.1	3.7

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	VAPOR DIFFUSION, HANGING DROP	8.8	291	PEG 4000, Tris-HCl, NaCl, Magnesium acetate, metatungstate