7PCT

BurG E232Q mutant (holo) in complex with enol-oxalacetate (15): Biosynthesis of cyclopropanol rings in bacterial toxins

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	7PCC

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	8.5	293	0.1 M Tris; o.2 M NaAc, 16% PEG 4K, 2 mM NAD+, 5 mM MgCl2

Crystal Properties
Matthews coefficient	Solvent content
2.15	42.8

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 58.29	α = 90
b = 76.03	β = 106.14
c = 78.23	γ = 90

Symmetry
Space Group	P 1 21 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	PIXEL	DECTRIS EIGER X 16M		2021-03-28	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SLS BEAMLINE X06SA	1.0	SLS	X06SA

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	1.35	30	97.3	0.068	8.1	3		139870

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	1.35	1.45			0.536

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	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	MOLECULAR REPLACEMENT	THROUGHOUT	7PCC	1.35	30	132865	6993	97.39	0.1573	0.1561	0.1795	RANDOM	13.772

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]
1.08		-0.88	-0.92		0.29

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	29.029
r_dihedral_angle_4_deg	17.31
r_dihedral_angle_3_deg	11.252
r_dihedral_angle_1_deg	5.962
r_angle_other_deg	1.477
r_angle_refined_deg	1.437
r_rigid_bond_restr	0.996
r_chiral_restr	0.071
r_gen_planes_refined	0.007
r_bond_refined_d	0.006

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	29.029
r_dihedral_angle_4_deg	17.31
r_dihedral_angle_3_deg	11.252
r_dihedral_angle_1_deg	5.962
r_angle_other_deg	1.477
r_angle_refined_deg	1.437
r_rigid_bond_restr	0.996
r_chiral_restr	0.071
r_gen_planes_refined	0.007
r_bond_refined_d	0.006
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5209
Nucleic Acid Atoms
Solvent Atoms	749
Heterogen Atoms	122

Software

Software
Software Name	Purpose
REFMAC	refinement
PDB_EXTRACT	data extraction
XDS	data reduction
XSCALE	data scaling
PHASER	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 R01GM157729.