Experiment: 3US9

Crystal Structure of the NCX1 Intracellular Tandem Calcium Binding Domains(CBD12)

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2QVM	2QVM, 3GIN
experimental model	PDB	3GIN	2QVM, 3GIN

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7.2	292	7% PEG 8000, 0.2M Amonium Sulphate, 10% Sucrose, pH 7.2, VAPOR DIFFUSION, SITTING DROP, temperature 292K

Crystal Properties
Matthews coefficient	Solvent content
3.72	66.91

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 80.67	α = 90
b = 152.55	β = 90
c = 79.7	γ = 90

Symmetry
Space Group	C 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	110	PIXEL	DECTRIS PILATUS 6M		2011-06-26	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID29	0.976	ESRF	ID29

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	2.6	50	90	0.079	6.1	4.6	14002	14002	1	1

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.68	2.85	16.4

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	2QVM, 3GIN	2.68	43.017	1.35	11357	11357	898	80.13	0.2338	0.2401	0.2738	0.2854	RANDOM	84.2688

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]
3.0742			-2.1865		-0.8877

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	14.092
f_angle_d	0.813
f_chiral_restr	0.055
f_bond_d	0.004
f_plane_restr	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1890
Nucleic Acid Atoms
Solvent Atoms	12
Heterogen Atoms	3

Software

Software
Software Name	Purpose
DNA	data collection
PHASER	phasing
PHENIX	refinement
HKL-2000	data reduction
HKL-2000	data scaling