1T3S

Structural Analysis of the Voltage-Dependent Calcium Channel Beta Subunit Functional Core

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	9	292	PEG 20K, BICINE, SODIUM CHLORIDE, BETA-MERCAPTOETHANOL, MPD, pH 9, VAPOR DIFFUSION, HANGING DROP, temperature 292K

Crystal Properties
Matthews coefficient	Solvent content
2.75	55.26

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 74.066	α = 90
b = 163.841	β = 90
c = 34.761	γ = 90

Symmetry
Space Group	P 21 21 2

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	ADSC QUANTUM 4		2002-07-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-2	0.9333	ESRF	ID14-2

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	2.3	50		0.048	15.4			18271

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		87.9		0.31	4.3

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	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	MAD	THROUGHOUT	model built from earlier MAD data	2.3	81.65	18229	17294	935	92.79	0.26222	0.26147	0.27728	RANDOM	57.757

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]
-3.86			5.23		-1.37

RMS Deviations
Key	Refinement Restraint Deviation
r_angle_other_deg	3.506
r_scangle_it	3.492
r_mcangle_it	2.705
r_scbond_it	2.323
r_mcbond_it	1.559
r_angle_refined_deg	1.536
r_dihedral_angle_1_deg	1.213
r_nbd_other	0.302
r_symmetry_vdw_other	0.267
r_nbd_refined	0.241
r_symmetry_vdw_refined	0.167
r_xyhbond_nbd_refined	0.161
r_nbtor_other	0.109
r_chiral_restr	0.108
r_symmetry_hbond_refined	0.039
r_gen_planes_refined	0.009
r_bond_refined_d	0.008
r_gen_planes_other	0.006
r_bond_other_d
r_dihedral_angle_2_deg
r_dihedral_angle_3_deg
r_dihedral_angle_4_deg
r_nbtor_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_hbond_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	2282
Nucleic Acid Atoms
Solvent Atoms	87
Heterogen Atoms	1

Software

Software
Software Name	Purpose
REFMAC	refinement
DENZO	data reduction
SCALEPACK	data scaling
SOLVE	phasing