3DA4

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	6.5	292	0.1M N-(2-acetamido) iminodiacetate, 12% PEG 6000, 0.2M MgCl2, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 292K

Crystal Properties
Matthews coefficient	Solvent content
2.53	51.43

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 50.49	α = 90
b = 108.75	β = 90
c = 224.94	γ = 90

Symmetry
Space Group	C 2 2 21

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		2007-12-10	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SLS BEAMLINE X10SA	1	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	1.7	30	97.7	0.123	9.9	5.6		67044		2.4	22

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)
	1.7	1.8	93.8		0.452	2.4	5.1	10264

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	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	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 3DA3	1.7	30	67044	62343	4692	100	0.23	0.22136	0.21838	0.26134	RANDOM	16.698

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]
-0.21			-0.44		0.65

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.078
r_dihedral_angle_4_deg	17.405
r_dihedral_angle_3_deg	14.297
r_dihedral_angle_1_deg	6.577
r_scangle_it	2.958
r_scbond_it	1.967
r_angle_refined_deg	1.771
r_mcangle_it	1.172
r_mcbond_it	0.711
r_nbtor_refined	0.341
r_nbd_refined	0.255
r_symmetry_vdw_refined	0.251
r_xyhbond_nbd_refined	0.203
r_symmetry_hbond_refined	0.184
r_chiral_restr	0.093
r_bond_refined_d	0.017
r_gen_planes_refined	0.006

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4140
Nucleic Acid Atoms
Solvent Atoms	641
Heterogen Atoms	20

Software

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