3FLJ

Crystal structure of uncharacterized protein conserved in bacteria with a cystatin-like fold (YP_168589.1) from SILICIBACTER POMEROYI DSS-3 at 2.00 A resolution

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7	277	0.2000M MgCl2, 2.5000M NaCl, 0.1M TRIS pH 7.0, NANODROP, VAPOR DIFFUSION, SITTING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
4.07	69.74

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 120.88	α = 90
b = 120.88	β = 90
c = 120.88	γ = 90

Symmetry
Space Group	I 2 3

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	MARMOSAIC 325 mm CCD	Flat collimating mirror, toroid focusing mirror	2008-12-08	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL9-2	0.91837,0.97982	SSRL	BL9-2

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	28.49	99.1	0.072	11.95			19903		-3	30.973

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	2.07	96.2		0.866	1.4

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	MAD	THROUGHOUT	2	28.49	19902	1018	99.87	0.177	0.176	0.185	RANDOM	48.955

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]

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	27.327
r_dihedral_angle_4_deg	13.777
r_dihedral_angle_3_deg	10.35
r_scangle_it	4.501
r_dihedral_angle_1_deg	3.858
r_scbond_it	3.369
r_angle_refined_deg	1.711
r_mcangle_it	1.68
r_angle_other_deg	1.555
r_mcbond_it	1.188
r_symmetry_vdw_other	0.193
r_nbd_refined	0.156
r_mcbond_other	0.147
r_nbtor_refined	0.14
r_nbd_other	0.118
r_chiral_restr	0.098
r_xyhbond_nbd_refined	0.075
r_symmetry_vdw_refined	0.071
r_nbtor_other	0.066
r_symmetry_hbond_refined	0.059
r_bond_refined_d	0.017
r_gen_planes_refined	0.006
r_bond_other_d	0.005
r_gen_planes_other	0.003

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1113
Nucleic Acid Atoms
Solvent Atoms	105
Heterogen Atoms	4

Software

Software
Software Name	Purpose
REFMAC	refinement
PHENIX	refinement
SHELX	phasing
MolProbity	model building
XSCALE	data scaling
PDB_EXTRACT	data extraction
XDS	data reduction
SHELXD	phasing
autoSHARP	phasing