3RM1

1.24 Angstrom X-ray structure of bovine TRTK12-Ca(2+)-S100B D63N

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	SITTING DROP	6.875	295	22% PEG3350, 7.5 mM calcium chloride, 100 mM cacodylate, pH 6.875, SITTING DROP, temperature 295K

Crystal Properties
Matthews coefficient	Solvent content
2.04	39.74

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 35.007	α = 90
b = 89.251	β = 90
c = 59.668	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		2010-01-01	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL7-1		SSRL	BL7-1

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	1.24	50	98.7	0.085	10.2	6.9		26591

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	1.24	1.28	99.5		0.559		6.4	2631

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	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	PDB ENTRY 3IQQ	1.24	44.63	26563	1335	98.63	0.2048	0.2039	0.2232	RANDOM	18.7833

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]
0.59			-0.6		0.01

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	30.297
r_dihedral_angle_4_deg	15.432
r_dihedral_angle_3_deg	10.634
r_dihedral_angle_1_deg	4.998
r_scangle_it	3.288
r_scbond_it	2.121
r_mcangle_it	1.567
r_angle_refined_deg	1.393
r_mcbond_it	0.896
r_chiral_restr	0.11
r_bond_refined_d	0.013
r_gen_planes_refined	0.007

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	771
Nucleic Acid Atoms
Solvent Atoms	121
Heterogen Atoms	2

Software

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