2OZG

Crystal structure of GCN5-related N-acetyltransferase (YP_325469.1) from Anabaena variabilis ATCC 29413 at 2.00 A resolution

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	8.3	277	NANODROP, 0.2M K3 Citrate, 20% PEG 3350, No Buffer, pH 8.3, VAPOR DIFFUSION, SITTING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.36	47.95

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 174.965	α = 90
b = 174.965	β = 90
c = 71.888	γ = 120

Symmetry
Space Group	H 3 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 4	1m long Rh coated bent cylindrical mirror for horizontal and vertical focusing	2007-01-30	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL1-5	0.918381, 0.979310, 0.978835	SSRL	BL1-5

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	2	29.161	99.8	0.089	0.089	6.4	5.1		28396			30.89

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	2	2.05	99.6		0.731	0.731	1.1	4.6	2063

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	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	MAD	THROUGHOUT	2	29.161	28395	1437	99.8	0.164	0.164	0.161	0.215	RANDOM	34.152

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]
-1.03	-0.52		-1.03		1.55

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.467
r_dihedral_angle_3_deg	11.905
r_dihedral_angle_4_deg	11.572
r_scangle_it	7.491
r_scbond_it	5.661
r_dihedral_angle_1_deg	4.381
r_mcangle_it	3.446
r_mcbond_it	2.568
r_angle_refined_deg	1.823
r_angle_other_deg	0.843
r_mcbond_other	0.669
r_symmetry_vdw_other	0.251
r_nbd_refined	0.214
r_symmetry_hbond_refined	0.205
r_xyhbond_nbd_refined	0.2
r_symmetry_vdw_refined	0.191
r_nbd_other	0.187
r_nbtor_refined	0.185
r_chiral_restr	0.111
r_nbtor_other	0.094
r_bond_refined_d	0.018
r_gen_planes_refined	0.008
r_gen_planes_other	0.002
r_bond_other_d	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3040
Nucleic Acid Atoms
Solvent Atoms	264
Heterogen Atoms	80

Software

Software
Software Name	Purpose
MolProbity	model building
SHELX	phasing
REFMAC	refinement
SCALA	data scaling
PDB_EXTRACT	data extraction
ADSC	data collection
MOSFLM	data reduction
CCP4	data scaling
SHELXD	phasing
SHARP	phasing