2FS2

Structure of the E. coli PaaI protein from the phyenylacetic acid degradation operon

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6	291	13% PEG 4000, 0.1M BIS-TRIS, 20% MPD, 0.2M LITHIUM SULFATE, pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 291K

Crystal Properties
Matthews coefficient	Solvent content
2.51	50.92

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 69.847	α = 90
b = 69.847	β = 90
c = 117.168	γ = 120

Symmetry
Space Group	P 31 2 1

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	MARRESEARCH		2003-06-07	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 31-ID	0.9798	APS	31-ID

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	20	93.5	0.093	6.9	2.5	43273	40460	-0.5	-0.5

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)
	2	2.07	88.9	88.9	0.462	1.4	2.2

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-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	SAD	THROUGHOUT	2	19.88	22978	19072	981	83.1	0.189	0.187	0.23	RANDOM	32.946

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]
1.06	0.53		1.06		-1.59

RMS Deviations
Key	Refinement Restraint Deviation
r_scangle_it	8.814
r_dihedral_angle_1_deg	7.143
r_scbond_it	5.506
r_mcangle_it	3.087
r_angle_refined_deg	2.329
r_mcbond_it	1.608
r_nbd_refined	0.247
r_symmetry_hbond_refined	0.221
r_symmetry_vdw_refined	0.213
r_xyhbond_nbd_refined	0.2

RMS Deviations
Key	Refinement Restraint Deviation
r_scangle_it	8.814
r_dihedral_angle_1_deg	7.143
r_scbond_it	5.506
r_mcangle_it	3.087
r_angle_refined_deg	2.329
r_mcbond_it	1.608
r_nbd_refined	0.247
r_symmetry_hbond_refined	0.221
r_symmetry_vdw_refined	0.213
r_xyhbond_nbd_refined	0.2
r_chiral_restr	0.167
r_bond_refined_d	0.031
r_gen_planes_refined	0.012

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2014
Nucleic Acid Atoms
Solvent Atoms	79
Heterogen Atoms	15

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
SOLVE	phasing
RESOLVE	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
MAR345	data collection

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.