4DEY

Crystal structure of the Voltage Dependent Calcium Channel beta-2 Subunit in Complex With The CaV1.2 I-II Linker.

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION	7.5	292	1.1-1.25 M potassium sodium tartrate, 0.1 M Tris Soaked with KI before freezing , pH 7.5, VAPOR DIFFUSION, temperature 292K
2	VAPOR DIFFUSION	7.5	292	1.1-1.25 M potassium sodium tartrate, 0.1 M Tris Soaked with KI before freezing, pH 7.5, VAPOR DIFFUSION, temperature 292K
3	VAPOR DIFFUSION	7.5	292	1.1-1.25 M potassium sodium tartrate, 0.1 M Tris Soaked with NaBr before freezing, pH 7.5, VAPOR DIFFUSION, temperature 292K

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 53.257	α = 90
b = 70.512	β = 90
c = 134.339	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	100	CCD	MARMOSAIC 225 mm CCD		2006-04-01	M	SINGLE WAVELENGTH
2	2	x-ray	100	IMAGE PLATE	RIGAKU RAXIS IV		2006-03-25	M	SINGLE WAVELENGTH
3	3	x-ray	100	CCD	MARMOSAIC 225 mm CCD		2006-04-01	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE BM14	1.24	ESRF	BM14
2	ROTATING ANODE	RIGAKU	1.542
3	SYNCHROTRON	ESRF BEAMLINE BM14	0.918	ESRF	BM14

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
1,2,3	1.95	30	91				37774

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1,2,3	1.95	2.02	36.7		0.338	1.2

Refinement

Statistics
Diffraction ID	Structure Solution Method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	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	SAD	1.95	29.398	1.32	36351	1813	96.45	0.2006	0.199	0.2291	Random

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]
1.18			-0.5495		-0.6305

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	15.061
f_angle_d	1.03
f_chiral_restr	0.071
f_bond_d	0.006
f_plane_restr	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2412
Nucleic Acid Atoms
Solvent Atoms	158
Heterogen Atoms	17

Software

Software
Software Name	Purpose
PHENIX	refinement
SHARP	phasing
REFMAC	refinement
CNS	refinement
DNA	data collection
DENZO	data reduction
SCALEPACK	data scaling

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.