3DA3

Crystal Structure of Colicin M, A Novel Phosphatase Specifically Imported by Escherichia Coli

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7.4	282	20% PEG 3350, 0.2M potassium nitrate, 0.1mM CaCl2, 0.1mM pyrophosphate, pH 7.4, VAPOR DIFFUSION, SITTING DROP, temperature 282K

Crystal Properties
Matthews coefficient	Solvent content
2.84	56.72

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 119.88	α = 90
b = 119.88	β = 90
c = 96.22	γ = 90

Symmetry
Space Group	P 42 21 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 225 mm CCD		2007-11-20	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SLS BEAMLINE X10SA	0.97	SLS	X10SA

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	2.5	30	93.2	0.175	8			23282		2.7	32

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)
	2.5	2.65	98		0.398	2.7	6.3	3858

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MIR	THROUGHOUT	2.5	19.98	23282	22199	1183	94.23	0.24	0.23802	0.23503	0.29468	RANDOM	29.076

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			-0.03		0.07

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	38.311
r_dihedral_angle_3_deg	16.904
r_dihedral_angle_4_deg	15.615
r_dihedral_angle_1_deg	5.916
r_scangle_it	1.433
r_angle_refined_deg	1.252
r_scbond_it	0.925
r_mcangle_it	0.755
r_mcbond_it	0.432
r_nbtor_refined	0.301
r_nbd_refined	0.218
r_symmetry_vdw_refined	0.192
r_xyhbond_nbd_refined	0.172
r_symmetry_hbond_refined	0.149
r_chiral_restr	0.082
r_bond_refined_d	0.01
r_gen_planes_refined	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4134
Nucleic Acid Atoms
Solvent Atoms	144
Heterogen Atoms	2

Software

Software
Software Name	Purpose
REFMAC	refinement
MAR345	data collection
XDS	data reduction
XSCALE	data scaling
SHARP	phasing