2OIK

Crystal structure of a histidine triad (hit) protein (mfla_2506) from methylobacillus flagellatus kt at 1.65 A resolution

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		9	277	NANODROP, 0.1M NaCl, 30.0% PEG MME-550, 0.1M Bicine pH 9.0, VAPOR DIFFUSION, SITTING DROP, temperature 277K, pH 9.00

Crystal Properties
Matthews coefficient	Solvent content
1.97	37.53

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 45.243	α = 108.13
b = 47.981	β = 98.22
c = 69.766	γ = 90.34

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	MARMOSAIC 325 mm CCD	FLAT MIRROR (VERTICAL FOCUSING)	2006-12-17	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL11-1		SSRL	BL11-1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge 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	1.65	45.549	93.5	0.118	7.36	3.94		62091			24.16

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.65	1.71	70.5		0.828	1.52	3.71

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	SAD	THROUGHOUT	1.65	45.549	62091	3135	93.6	0.181	0.179	0.223	RANDOM	14.62

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]
-0.83	-0.7	-0.57	-0.57	-1.3	0.42

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	28.521
r_dihedral_angle_4_deg	16.485
r_dihedral_angle_3_deg	12.753
r_dihedral_angle_1_deg	6.064
r_scangle_it	5.521
r_scbond_it	4.056
r_mcangle_it	2.607
r_mcbond_it	1.913
r_angle_refined_deg	1.565
r_angle_other_deg	0.863
r_mcbond_other	0.697
r_symmetry_vdw_other	0.352
r_symmetry_vdw_refined	0.235
r_nbd_refined	0.21
r_nbd_other	0.196
r_nbtor_refined	0.177
r_xyhbond_nbd_refined	0.175
r_symmetry_hbond_refined	0.13
r_chiral_restr	0.093
r_nbtor_other	0.086
r_metal_ion_refined	0.075
r_bond_refined_d	0.015
r_gen_planes_refined	0.007
r_bond_other_d	0.002
r_gen_planes_other	0.001
r_xyhbond_nbd_other
r_metal_ion_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4380
Nucleic Acid Atoms
Solvent Atoms	461
Heterogen Atoms	57

Software

Software
Software Name	Purpose
MolProbity	model building
SHELX	phasing
REFMAC	refinement
XSCALE	data scaling
PDB_EXTRACT	data extraction
XDS	data reduction
SHELXD	phasing
autoSHARP	phasing