3C26

Crystal structure of a putative acetyltransferase (NP_394282.1) from Thermoplasma acidophilum at 2.00 A resolution

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6.8	293	NANODROP, 0.2M NaNO3, 20.0% PEG 3350, No Buffer pH 6.8, VAPOR DIFFUSION, SITTING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.04	39.85

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 86.82	α = 90
b = 86.82	β = 90
c = 67.26	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	MARMOSAIC 325 mm CCD	Flat mirror (vertical focusing)	2007-12-09	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL11-1	0.97895	SSRL	BL11-1

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	29.488	99.8	0.105	10.53			17927		-3	23.54

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	2.07	99.1		0.6	2.2

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 (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	SAD	THROUGHOUT	2	29.488	17882	912	99.9	0.182	0.179	0.242	RANDOM	22.439

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]
					0.01

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	31.466
r_dihedral_angle_4_deg	15.807
r_dihedral_angle_3_deg	14.232
r_dihedral_angle_1_deg	4.419
r_scangle_it	4.037
r_scbond_it	2.585
r_angle_refined_deg	1.609
r_mcangle_it	1.606
r_angle_other_deg	1.288
r_mcbond_it	0.894

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	31.466
r_dihedral_angle_4_deg	15.807
r_dihedral_angle_3_deg	14.232
r_dihedral_angle_1_deg	4.419
r_scangle_it	4.037
r_scbond_it	2.585
r_angle_refined_deg	1.609
r_mcangle_it	1.606
r_angle_other_deg	1.288
r_mcbond_it	0.894
r_mcbond_other	0.217
r_chiral_restr	0.089
r_bond_refined_d	0.017
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	2067
Nucleic Acid Atoms
Solvent Atoms	150
Heterogen Atoms	32

Software

Software
Software Name	Purpose
REFMAC	refinement
PHENIX	refinement
SHELX	phasing
MolProbity	model building
XSCALE	data scaling
PDB_EXTRACT	data extraction
MAR345	data collection
XDS	data reduction
SHELXD	phasing
autoSHARP	phasing

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.