2RAQ

Crystal structure of the MTH889 protein from Methanothermobacter thermautotrophicus. Northeast Structural Genomics Consortium target TT205

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	MICROBATCH UNDER OIL	7.5	291	Protein solution: 10 mM Tris-HCl pH 7.5, 100 mM NaCl, 5 mM DTT. Reservoir solution: 100 mM HEPES pH 7.5, 18% PEG 400, 200 mM CaCl2, 3% 1,6-Hexanediol, MICROBATCH UNDER OIL, temperature 291K

Crystal Properties
Matthews coefficient	Solvent content
2.41	48.88

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 113.569	α = 90
b = 113.569	β = 90
c = 114.53	γ = 90

Symmetry
Space Group	P 42 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 4	mirrors	2007-06-13	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X4A	0.97900	NSLS	X4A

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	3.1	80.58	99.5	0.085	0.068	26.13	7.3	25673	25673

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	3.1	3.21	99.8		0.313	0.282	6.13	6.7	2573

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (All)	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	SAD	THROUGHOUT	3.11	80.58	2	25802	13283	691	99.4	0.22	0.21871	0.21559	0.2802	RANDOM	55.914

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]
0.1			0.1		-0.2

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	43.678
r_dihedral_angle_3_deg	24.829
r_dihedral_angle_4_deg	20.343
r_dihedral_angle_1_deg	7.979
r_scangle_it	3.349
r_scbond_it	2.258
r_angle_refined_deg	1.774
r_mcangle_it	1.255
r_mcbond_it	0.694
r_nbtor_refined	0.336
r_symmetry_vdw_refined	0.292
r_nbd_refined	0.289
r_xyhbond_nbd_refined	0.205
r_symmetry_metal_ion_refined	0.196
r_symmetry_hbond_refined	0.17
r_metal_ion_refined	0.133
r_chiral_restr	0.126
r_bond_refined_d	0.017
r_gen_planes_refined	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5082
Nucleic Acid Atoms
Solvent Atoms	54
Heterogen Atoms	14

Software

Software
Software Name	Purpose
REFMAC	refinement
ADSC	data collection
DENZO	data reduction
SCALEPACK	data scaling
SnB	phasing
RESOLVE	phasing