4KOS

Crystal structure of a GNAT superfamily acetyltransferase PA4794 in complex with Cefmetazole

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5	289	2M ammonium sulfate, 0.1M Bis-Tris pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 289K

Crystal Properties
Matthews coefficient	Solvent content
2.42	49.24

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 57.812	α = 90
b = 76.533	β = 90
c = 39.432	γ = 90

Symmetry
Space Group	P 21 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 QUANTUM 210r	mirrors	2009-10-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-BM	0.9792	APS	19-BM

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	1.55	50	99.2	0.041	0.041	31.4	4	25876	25876		-3	20.8

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	1.55	1.58	98.9		0.661	0.661	2.1	4	1266

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	2i6c	1.55	23.32	24535	24535	1317	99.19	0.15648	0.15648	0.15515	0.18184	RANDOM	22.502

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]
0.38			-0.85		0.48

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.359
r_dihedral_angle_4_deg	18.017
r_dihedral_angle_3_deg	12.44
r_dihedral_angle_1_deg	5.865
r_angle_refined_deg	1.942
r_angle_other_deg	0.882
r_chiral_restr	0.122
r_bond_refined_d	0.018
r_gen_planes_refined	0.01
r_bond_other_d	0.005
r_gen_planes_other	0.001
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_it
r_mcbond_other
r_mcangle_it
r_scbond_it
r_scangle_it
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1236
Nucleic Acid Atoms
Solvent Atoms	207
Heterogen Atoms	98

Software

Software
Software Name	Purpose
HKL-3000	data collection
HKL-3000	phasing
REFMAC	refinement
Coot	model building
HKL-3000	data reduction
HKL-3000	data scaling