1O22

Crystal structure of an orphan protein (TM0875) from Thermotoga maritima at 2.00 A resolution

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		8.5	293	25.5 % PEG 4000; 0.085 M Tris pH 8.5; 0.17 M Na(Ac), 15 % Glycerol, VAPOR DIFFUSION,SITTING DROP,NANODROP, temperature 293K, pH 8.50

Crystal Properties
Matthews coefficient	Solvent content
2.32	46.59

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 58.41	α = 90
b = 58.41	β = 90
c = 102.49	γ = 90

Symmetry
Space Group	P 43 21 2

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		2002-10-13	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 5.0.2	0.97780, 0.91840, 0.97920	ALS	5.0.2

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	32.159	99	0.061	28.1	11.8		12462			36.49

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2	2.05	90.9		0.375	3.2	6.2

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	29.49	11574	887	99	0.186	0.182	0.238	RANDOM	23.83

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]
-0.02			-0.02		0.04

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	40.914
r_dihedral_angle_3_deg	15.381
r_dihedral_angle_4_deg	10.177
r_scangle_it	9.514
r_scbond_it	6.342
r_dihedral_angle_1_deg	6.319
r_mcangle_it	3.707
r_mcbond_it	2
r_angle_refined_deg	1.444
r_angle_other_deg	0.825
r_symmetry_vdw_other	0.3
r_nbd_other	0.243
r_xyhbond_nbd_refined	0.237
r_nbd_refined	0.193
r_symmetry_hbond_refined	0.184
r_symmetry_vdw_refined	0.14
r_chiral_restr	0.098
r_nbtor_other	0.081
r_bond_refined_d	0.016
r_gen_planes_refined	0.006
r_bond_other_d	0.002
r_gen_planes_other	0.001
r_nbtor_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_hbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1223
Nucleic Acid Atoms
Solvent Atoms	102
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
SCALA	data scaling
RESOLVE	model building
SOLVE	phasing
CNS	refinement
XFIT	data reduction
MOSFLM	data reduction
CCP4	data scaling
RESOLVE	phasing