2HQW

Crystal Structure of Ca2+/Calmodulin bound to NMDA Receptor NR1C1 peptide

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	4	277.15	7% PEG 6000, 5mM CaCl2, 100 mM sodium acetate, pH 4, VAPOR DIFFUSION, HANGING DROP, temperature 277.15K

Crystal Properties
Matthews coefficient	Solvent content
2.15	42.67

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 40.371	α = 90
b = 40.371	β = 90
c = 175.765	γ = 120

Symmetry
Space Group	P 32 2 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	MAR CCD 165 mm		2005-03-13	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 17-ID	1.00808	APS	17-ID

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	1.9	19.69	98.4	0.034	17.36	3.01		13652			38.32

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	1.9	2	92.6		0.255	3.92	2.56	3353

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	1.9	8.57	13379	13379	273	100	0.20695	0.20695	0.20614	0.24789	RANDOM	29.361

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	0.07		0.13		-0.2

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	38.35
r_dihedral_angle_4_deg	20.464
r_dihedral_angle_3_deg	19.333
r_dihedral_angle_1_deg	5.656
r_scangle_it	3.602
r_scbond_it	2.334
r_angle_refined_deg	1.585
r_mcangle_it	1.536
r_angle_other_deg	1.058
r_mcbond_it	0.972
r_symmetry_vdw_other	0.255
r_mcbond_other	0.247
r_nbd_refined	0.243
r_xyhbond_nbd_refined	0.196
r_nbd_other	0.186
r_nbtor_refined	0.181
r_symmetry_hbond_refined	0.169
r_symmetry_vdw_refined	0.131
r_metal_ion_refined	0.107
r_chiral_restr	0.103
r_nbtor_other	0.091
r_bond_refined_d	0.019
r_gen_planes_refined	0.006
r_bond_other_d	0.005
r_gen_planes_other	0.001
r_xyhbond_nbd_other
r_metal_ion_other
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	1267
Nucleic Acid Atoms
Solvent Atoms	66
Heterogen Atoms	4

Software

Software
Software Name	Purpose
REFMAC	refinement
AMoRE	phasing