3LK1 | pdb_00003lk1

X-ray structure of bovine SC0322,Ca(2+)-S100B

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7.4	298	PEGMME550, CaCl2, MgCl2, SC0322, HEPES buffer, pH 7.4, VAPOR DIFFUSION, SITTING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.21	44.41

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 35.194	α = 90
b = 88.792	β = 90
c = 58.996	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	100	CCD	ADSC QUANTUM 315r		2008-08-09	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL9-1	0.97607	SSRL	BL9-1

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	1.79	50	84.6	0.057	16.8	5.9		7607

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)
	1.8	1.86	33.4		0.308		3.4	297

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (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	1.79	29.5	7593	364	84.36	0.198	0.196	0.1976	0.242	0.2537	RANDOM	49.817

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]
-0.33			-2.44		2.77

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	31.557
r_dihedral_angle_4_deg	21.691
r_dihedral_angle_3_deg	14.211
r_dihedral_angle_1_deg	8.772
r_scangle_it	2.285
r_scbond_it	1.497
r_angle_refined_deg	1.427
r_mcangle_it	0.806
r_mcbond_it	0.558
r_nbtor_refined	0.298
r_nbd_refined	0.223
r_metal_ion_refined	0.187
r_xyhbond_nbd_refined	0.174
r_symmetry_vdw_refined	0.165
r_symmetry_hbond_refined	0.164
r_chiral_restr	0.108
r_bond_refined_d	0.012
r_gen_planes_refined	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	694
Nucleic Acid Atoms
Solvent Atoms	47
Heterogen Atoms	15

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
PHASER	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
HKL-2000	data reduction
HKL-2000	data scaling