2Q91

Structure of the Ca2+-Bound Activated Form of the S100A4 Metastasis Factor

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6.5	294	0.05M ammonium sulfate, 0.05M Bis-Tris, 27.5% pentaethythritol-pthoxylate, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 294K

Crystal Properties
Matthews coefficient	Solvent content
2.37	48.11

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 52.424	α = 90
b = 52.424	β = 90
c = 140.419	γ = 120

Symmetry
Space Group	P 32 2 1

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 210	X6A	2006-06-21	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X6A	1.7	NSLS	X6A

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	1.63	50	99	0.096	10.5	10.1		28584			22.5

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1.63	1.69	99.9		0.58	0.58	2.5	9.6	2784

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	SAD	THROUGHOUT	1.63	19.16	28501	1440	99.81	0.187	0.185	0.217	RANDOM	26.232

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]
0.08	0.04		0.08		-0.12

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	31.241
r_dihedral_angle_4_deg	16.182
r_dihedral_angle_3_deg	13.32
r_scbond_it	6.692
r_scangle_it	5.7
r_dihedral_angle_1_deg	5.216
r_mcangle_it	3.725
r_mcbond_it	1.874
r_angle_refined_deg	1.504
r_nbtor_refined	0.315
r_xyhbond_nbd_refined	0.261
r_nbd_refined	0.231
r_symmetry_hbond_refined	0.209
r_symmetry_vdw_refined	0.192
r_chiral_restr	0.103
r_metal_ion_refined	0.063
r_bond_refined_d	0.016
r_gen_planes_refined	0.007

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1569
Nucleic Acid Atoms
Solvent Atoms	236
Heterogen Atoms	4

Software

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