3CR5

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

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7.6	298	PEG3350, Pentamidine, CaCl2, ZnCl2, Cacodylate buffer, pH 7.6, VAPOR DIFFUSION, SITTING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.32	46.93

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 62.883	α = 90
b = 62.883	β = 90
c = 50.084	γ = 90

Symmetry
Space Group	P 41 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 315r		2007-05-17	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL9-1	0.98	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	1.85	45	98.8	0.132	16.1	12.9		8906

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	1.85	1.92	94.3		0.358		8.9	821

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	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	1.85	44.46	8872	416	98.84	0.194	0.192	0.243	RANDOM	40.164

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]
-0.8			-0.8		1.6

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.555
r_dihedral_angle_3_deg	14.981
r_dihedral_angle_4_deg	9.375
r_dihedral_angle_1_deg	4.702
r_scangle_it	3.768
r_scbond_it	2.469
r_angle_refined_deg	1.484
r_mcangle_it	1.439
r_mcbond_it	1.13
r_symmetry_vdw_refined	0.371
r_nbtor_refined	0.321
r_nbd_refined	0.274
r_xyhbond_nbd_refined	0.161
r_chiral_restr	0.149
r_symmetry_hbond_refined	0.127
r_symmetry_metal_ion_refined	0.112
r_metal_ion_refined	0.103
r_bond_refined_d	0.015
r_gen_planes_refined	0.007

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	723
Nucleic Acid Atoms
Solvent Atoms	82
Heterogen Atoms	53

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
MOLREP	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
Blu-Ice	data collection