3GA7

1.55 Angstrom Crystal Structure of an Acetyl Esterase from Salmonella typhimurium

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.5	295	1:1 v/v protein solution (10mg/mL protein, 0.3M NaCl, 10mM Na Hepes pH 7.5) with the screen solution (0.2M Sodium Sulphate, PEG3350 20%), VAPOR DIFFUSION, HANGING DROP, temperature 295K

Crystal Properties
Matthews coefficient	Solvent content
2.34	47.52

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 82.747	α = 90
b = 133.207	β = 90
c = 64.139	γ = 90

Symmetry
Space Group	C 2 2 21

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 300 mm CCD	beryllium lenses	2009-02-08	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 21-ID-D	0.97926	APS	21-ID-D

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	1.55	30	99.6	0.077	58	14.8	51647	51647		-3	17.8

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	1.55	1.58	98.7		0.59	5	14.9	2506

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 (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	SAD	THROUGHOUT	1.55	30	48985	48985	2628	99.56	0.1401	0.1401	0.13814	0.17739	RANDOM	11.614

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]
0.43			-0.3		-0.13

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	29.711
r_dihedral_angle_4_deg	15.763
r_dihedral_angle_3_deg	10.146
r_scangle_it	4.436
r_dihedral_angle_1_deg	3.971
r_scbond_it	2.895
r_mcangle_it	2.146
r_angle_refined_deg	1.32
r_mcbond_it	1.24
r_angle_other_deg	0.801

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	29.711
r_dihedral_angle_4_deg	15.763
r_dihedral_angle_3_deg	10.146
r_scangle_it	4.436
r_dihedral_angle_1_deg	3.971
r_scbond_it	2.895
r_mcangle_it	2.146
r_angle_refined_deg	1.32
r_mcbond_it	1.24
r_angle_other_deg	0.801
r_mcbond_other	0.365
r_chiral_restr	0.091
r_bond_refined_d	0.01
r_gen_planes_refined	0.006
r_gen_planes_other	0.002
r_bond_other_d	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2479
Nucleic Acid Atoms
Solvent Atoms	472
Heterogen Atoms	2

Software

Software
Software Name	Purpose
Blu-Ice	data collection
SHARP	phasing
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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.