2ONF

Crystal structure of a putative osmotically inducible protein c (ta0195) from thermoplasma acidophilum at 1.70 A resolution

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6	277	NANODROP, 30.0% PEG-6000, 0.1M MES pH 6.0, VAPOR DIFFUSION, SITTING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.39	48.58

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 47.07	α = 90
b = 68.55	β = 98.29
c = 48.67	γ = 90

Symmetry
Space Group	P 1 21 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	MARMOSAIC 325 mm CCD	Flat mirror (vertical focusing)	2006-12-18	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL11-1	0.91837, 0.97910	SSRL	BL11-1

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	1.7	27.929	94.4	0.032	14.34			33417			28.911

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	1.7	1.76	87.6		0.315	2.6		5702

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 (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MAD	THROUGHOUT	1.7	27.929	33399	1697	99.01	0.164	0.164	0.162	0.201	RANDOM	19.658

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]
-1.39		0.96	-0.42		2.09

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.429
r_dihedral_angle_4_deg	20.214
r_dihedral_angle_3_deg	13.784
r_scangle_it	6.907
r_dihedral_angle_1_deg	5.879
r_scbond_it	5.092
r_mcangle_it	2.886
r_mcbond_it	2.319
r_angle_refined_deg	1.696
r_angle_other_deg	0.972
r_mcbond_other	0.572
r_symmetry_vdw_other	0.253
r_nbd_refined	0.214
r_nbd_other	0.206
r_nbtor_refined	0.181
r_symmetry_hbond_refined	0.162
r_symmetry_vdw_refined	0.16
r_xyhbond_nbd_refined	0.157
r_chiral_restr	0.103
r_nbtor_other	0.085
r_bond_refined_d	0.017
r_gen_planes_refined	0.007
r_bond_other_d	0.003
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2260
Nucleic Acid Atoms
Solvent Atoms	306
Heterogen Atoms	64

Software

Software
Software Name	Purpose
MolProbity	model building
SOLVE	phasing
REFMAC	refinement
XSCALE	data scaling
PDB_EXTRACT	data extraction
MAR345	data collection
XDS	data reduction