2F4I

Crystal structure of an ob-fold protein (tm0957) from thermotoga maritima msb8 at 1.90 A resolution

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		8.5	277	0.2M MgCl2, 30.0% PEG-4000, 0.1M TRIS, pH 8.5, VAPOR DIFFUSION,SITTING DROP,NANODROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.41	48.61

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 65.677	α = 90
b = 78.075	β = 93.4
c = 82.487	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 300 mm CCD	ADJUSTABLE FOCUSING MIRRORS IN K-B GEOMETRY	2005-08-04	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 23-ID-D	0.97942, 0.95372	APS	23-ID-D

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	R Sym 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	2.25	29.83	100	0.09	0.09	5.8	3.8		39599

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	2.25	2.37	100		0.3	2.3	3.8

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	2.25	29.83	37581	1987	99.8	0.193	0.19279	0.19	0.248	RANDOM	15.85

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]
0.41		-0.16	0.79		-1.21

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.041
r_dihedral_angle_3_deg	16.485
r_dihedral_angle_4_deg	15.295
r_dihedral_angle_1_deg	5.912
r_mcangle_it	2.336
r_mcbond_it	1.707
r_scangle_it	1.611
r_angle_refined_deg	1.562
r_scbond_it	1.169
r_angle_other_deg	1.039
r_mcbond_other	0.38
r_symmetry_vdw_other	0.267
r_nbd_refined	0.2
r_symmetry_hbond_refined	0.195
r_nbd_other	0.19
r_nbtor_refined	0.18
r_xyhbond_nbd_refined	0.18
r_symmetry_vdw_refined	0.175
r_metal_ion_refined	0.101
r_chiral_restr	0.095
r_xyhbond_nbd_other	0.091
r_nbtor_other	0.089
r_bond_refined_d	0.017
r_gen_planes_refined	0.006
r_bond_other_d	0.002
r_gen_planes_other	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5639
Nucleic Acid Atoms
Solvent Atoms	484
Heterogen Atoms	4

Software

Software
Software Name	Purpose
REFMAC	refinement
SCALA	data scaling
PDB_EXTRACT	data extraction
MOSFLM	data reduction
CCP4	data scaling
SHELX	phasing
autoSHARP	phasing