2AMU

CRYSTAL STRUCTURE OF A PUTATIVE SUPEROXIDE REDUCTASE (TM0658) FROM THERMOTOGA MARITIMA AT 2.00 A RESOLUTION

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION,SITTING DROP,NANODROP	6	293	10.0% Glycerol, 5.0% PEG-1000, 30.0% PEG-600, 0.1M MES , pH 6.0, VAPOR DIFFUSION,SITTING DROP,NANODROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.1	40.84

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 52.618	α = 90
b = 77.305	β = 90
c = 64.731	γ = 90

Symmetry
Space Group	I 2 2 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	MARMOSAIC 325 mm CCD		2005-07-04	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL9-2	0.91162	SSRL	BL9-2

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	28.07	88.8	0.072	0.072	8.6	3.2		8148

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	2	2.05		54.7	0.401	0.401	1.9	1.8

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	1do6	2	28.07	7762	385	88.17	0.149	0.147	0.202	RANDOM	26.878

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]
			-1.28		1.28

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	39.423
r_dihedral_angle_4_deg	19.742
r_dihedral_angle_3_deg	13.95
r_dihedral_angle_1_deg	6.83
r_scangle_it	5.866
r_scbond_it	4.966
r_mcangle_it	2.788
r_mcbond_it	2.038
r_angle_refined_deg	1.743
r_angle_other_deg	1.284
r_mcbond_other	0.476
r_symmetry_vdw_refined	0.332
r_symmetry_vdw_other	0.256
r_chiral_restr	0.198
r_symmetry_hbond_refined	0.194
r_nbd_other	0.192
r_nbtor_refined	0.177
r_nbd_refined	0.174
r_xyhbond_nbd_refined	0.149
r_nbtor_other	0.09
r_bond_refined_d	0.017
r_gen_planes_refined	0.006
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1052
Nucleic Acid Atoms
Solvent Atoms	63
Heterogen Atoms	1

Software

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