1VK8

CRYSTAL STRUCTURE OF A PUTATIVE THIAMINE BIOSYNTHESIS/SALVAGE PROTEIN (TM0486) FROM THERMOTOGA MARITIMA AT 1.80 A RESOLUTION

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION,SITTING DROP,NANODROP	9.6	277	20% PEG-8000, 0.1M CHES pH 9.5, pH 9.6, VAPOR DIFFUSION,SITTING DROP,NANODROP, temperature 277K. cryo condition: 12% PEG 200.

Crystal Properties
Matthews coefficient	Solvent content
1.97	36.95

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 47.646	α = 73.8
b = 47.65	β = 62.9
c = 49.608	γ = 73.62

Symmetry
Space Group	P 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	ADSC		2003-12-13	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 8.2.1	1.0332, 0.9796	ALS	8.2.1

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	1.8	41.71	76.1	0.06	10.2	1.9		25897			24.97

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	1.8	1.85	23.9		0.116	3.7	1.6	607

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	41.71	24544	1336	76.08	0.14404	0.14151	0.18956	RANDOM	14.411

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]
0.03	0.52	0.44	0.49	-0.03	-1.19

RMS Deviations
Key	Refinement Restraint Deviation
r_scangle_it	8.941
r_dihedral_angle_1_deg	5.811
r_scbond_it	5.719
r_mcangle_it	3.301
r_mcbond_it	1.737
r_angle_refined_deg	1.443
r_angle_other_deg	1.047
r_nbd_refined	0.397
r_nbd_other	0.249
r_symmetry_vdw_other	0.22
r_symmetry_hbond_refined	0.193
r_xyhbond_nbd_refined	0.192
r_symmetry_vdw_refined	0.136
r_nbtor_other	0.087
r_chiral_restr	0.079
r_bond_refined_d	0.015
r_gen_planes_refined	0.005
r_bond_other_d	0.002
r_gen_planes_other	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3014
Nucleic Acid Atoms
Solvent Atoms	353
Heterogen Atoms	48

Software

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