2I79

The crystal structure of the acetyltransferase of GNAT family from Streptococcus pneumoniae

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6	298	35%MPD, MES pH6.0, 0.2M LiSO4, VAPOR DIFFUSION, SITTING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.83	56.58

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 133.131	α = 90
b = 174.792	β = 90
c = 56.573	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	SBC-2	mirrors	2006-04-23	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-BM	0.9798	APS	19-BM

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	2.1	50	93.49	0.083	26.3	8.8	73580	68790	2	2	39.8

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.1	2.16	62.52		0.396	2	6	5664

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 (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	SAD	THROUGHOUT	2.1	44.7	73580	68790	3647	93.49	0.21045	0.20823	0.25133	RANDOM	39.864

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]
-1.5			-0.81		2.31

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.493
r_dihedral_angle_4_deg	21.372
r_dihedral_angle_3_deg	16.446
r_dihedral_angle_1_deg	6.7
r_scangle_it	3.149
r_scbond_it	2.141
r_angle_refined_deg	1.593
r_mcangle_it	1.287
r_mcbond_it	1.1
r_angle_other_deg	0.966
r_nbd_refined	0.204
r_nbd_other	0.203
r_symmetry_vdw_other	0.194
r_xyhbond_nbd_refined	0.184
r_nbtor_refined	0.173
r_mcbond_other	0.162
r_symmetry_hbond_refined	0.138
r_symmetry_vdw_refined	0.116
r_nbtor_other	0.089
r_chiral_restr	0.087
r_bond_refined_d	0.014
r_gen_planes_refined	0.005
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	8061
Nucleic Acid Atoms
Solvent Atoms	339
Heterogen Atoms	306

Software

Software
Software Name	Purpose
REFMAC	refinement
SBC-Collect	data collection
HKL-2000	data reduction
HKL-2000	data scaling
HKL-3000	phasing
SHELXE	model building
SOLVE	phasing
RESOLVE	phasing
ARP/wARP	model building