2D4O

Crystal structure of TTHA1254 (I68M mutant) from Thermus thermophilus HB8

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7	293	PEG3350, Hepes, NaCl, pH 7, VAPOR DIFFUSION, SITTING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.45	49.77

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 58.463	α = 90
b = 58.463	β = 90
c = 77.679	γ = 120

Symmetry
Space Group	P 31 2 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	RIGAKU JUPITER 210		2005-09-30	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SPRING-8 BEAMLINE BL26B1	0.96300, 0.97896, 0.97932	SPring-8	BL26B1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	1.8	50					14538

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	1.8	50	13292	705	95.14	0.18305	0.18041	0.23574	RANDOM	17.496

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]
0.28	0.14		0.28		-0.42

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	6.208
r_scangle_it	4.406
r_scbond_it	2.619
r_angle_refined_deg	1.487
r_mcangle_it	1.389
r_angle_other_deg	0.827
r_mcbond_it	0.764
r_symmetry_vdw_other	0.44
r_nbd_other	0.251
r_nbd_refined	0.205
r_symmetry_vdw_refined	0.142
r_xyhbond_nbd_refined	0.14
r_symmetry_hbond_refined	0.118
r_chiral_restr	0.083
r_nbtor_other	0.083
r_bond_refined_d	0.016
r_gen_planes_refined	0.007
r_gen_planes_other	0.006
r_bond_other_d	0.002
r_dihedral_angle_2_deg
r_dihedral_angle_3_deg
r_dihedral_angle_4_deg
r_nbtor_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1011
Nucleic Acid Atoms
Solvent Atoms	97
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
HKL-2000	data reduction
SCALEPACK	data scaling
SOLVE	phasing