3K6V

M. acetivorans Molybdate-Binding Protein (ModA) in Citrate-Bound Open Form

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6	293	4mM Sodium Sulfate, 1.4M Ammonium Citrate, pH6.0, vapor diffusion, sitting drop, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.57	52.14

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 81.629	α = 90
b = 81.629	β = 90
c = 104.636	γ = 120

Symmetry
Space Group	P 61

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 315		2005-09-30		SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 8.2.2	0.980	ALS	8.2.2

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	1.69	58.62	96.9	0.054	0.04	16.3	5.8		84835

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	1.69	1.75	82.3		0.593	0.472	2.26	3.8	7182

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	MOLECULAR REPLACEMENT	THROUGHOUT	1.69	58.62	43968	2184	99.51	0.19	0.189	0.211	RANDOM	19.883

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]
0.93	0.47		0.93		-1.4

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.452
r_dihedral_angle_4_deg	15.793
r_dihedral_angle_3_deg	11.153
r_dihedral_angle_1_deg	5.364
r_scangle_it	1.737
r_scbond_it	0.997
r_angle_refined_deg	0.975
r_mcangle_it	0.676
r_mcbond_it	0.346
r_chiral_restr	0.072
r_bond_refined_d	0.006
r_gen_planes_refined	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2423
Nucleic Acid Atoms
Solvent Atoms	294
Heterogen Atoms	13

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
EPMR	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
CrystalClear	data collection