2BL1

Crystal structure of a putative phosphinothricin Acetyltransferase (PA4866) from Pseudomonas aeruginosa PAC1

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.3		PROTEIN WAS CRYSTALLISED USING HANGING DROP VAPOUR DIFFUSION. RESERVOIR SOLUTION CONTAINED 1ML OF 0.1M HEPES AT PH7.3, 23-27% PEG 8000 AND 0.1% AZIDE. DROP SIZE WAS 1 MICROLITRE, TO WHICH 1 MICROLITRE OF PROTEIN SOLUTION AT 10 MG/ML WAS ADDED.

Crystal Properties
Matthews coefficient	Solvent content
2.23	44.39

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 79.99	α = 90
b = 79.99	β = 90
c = 61.73	γ = 90

Symmetry
Space Group	P 43 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	ADSC CCD		2004-03-23	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SRS BEAMLINE PX14.2		SRS	PX14.2

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	70	96.1	0.1	4.6	12.8		13388			21.11

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	2	2.05	96.1		0.28	2.6	12.7

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 (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	SAD	THROUGHOUT	NONE	2	6	13388	659	96.1	0.1974	0.1974	0.2294	RANDOM	24.04

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]

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	24.68
c_angle_deg	1.41
c_improper_angle_d	1.06
c_bond_d	0.019
c_bond_d_na
c_bond_d_prot
c_angle_d
c_angle_d_na
c_angle_d_prot
c_angle_deg_na
c_angle_deg_prot
c_dihedral_angle_d_na
c_dihedral_angle_d_prot
c_improper_angle_d_na
c_improper_angle_d_prot
c_mcbond_it
c_mcangle_it
c_scbond_it
c_scangle_it

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1303
Nucleic Acid Atoms
Solvent Atoms	213
Heterogen Atoms	35

Software

Software
Software Name	Purpose
CNS	refinement
DENZO	data reduction
SCALA	data scaling
SOLVE	phasing