7T1Q

Crystal Structure of the Succinyl-diaminopimelate Desuccinylase (DapE) from Acinetobacter baumannii in complex with Succinic Acid

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	5UEJ

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	4.5	292	Protein: 10.6 mg/ml, 0.15M Sodium chloride, 0.01M Tris pH 8.3, 2mM N6-Me-L,L-SDAP; Screen: Classics II (D5), 0.1M Sodium acetate pH 4.5, 25% (w/v) PEG3350

Crystal Properties
Matthews coefficient	Solvent content
2.94	58.6

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 68.323	α = 90
b = 103.46	β = 90
c = 145.157	γ = 90

Symmetry
Space Group	P 21 21 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	PIXEL	DECTRIS EIGER X 9M	mirrors	2021-09-17	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 21-ID-D	0.97848	APS	21-ID-D

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	R Sym I (Observed)	Rrim I (All)	Rpim I (All)	CC (Half)	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	2.25	30	100	0.145	0.145	0.151	0.043	0.997	20.2	12.2		50400		-3	45.5

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Rpim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.25	2.29	100		0.607	0.756	1.7	12.5

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	5uej	2.25	29.71	47108	2458	99.9	0.19	0.1878	0.2331	RANDOM	53.815

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]
4.81			0.49		-5.31

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	23.932
r_dihedral_angle_4_deg	11.05
r_dihedral_angle_3_deg	7.645
r_dihedral_angle_1_deg	2.112
r_angle_refined_deg	1.352
r_angle_other_deg	0.361
r_chiral_restr	0.058
r_gen_planes_refined	0.052
r_gen_planes_other	0.047
r_bond_refined_d	0.004

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	23.932
r_dihedral_angle_4_deg	11.05
r_dihedral_angle_3_deg	7.645
r_dihedral_angle_1_deg	2.112
r_angle_refined_deg	1.352
r_angle_other_deg	0.361
r_chiral_restr	0.058
r_gen_planes_refined	0.052
r_gen_planes_other	0.047
r_bond_refined_d	0.004
r_bond_other_d	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5772
Nucleic Acid Atoms
Solvent Atoms	350
Heterogen Atoms	38

Software

Software
Software Name	Purpose
REFMAC	refinement
PDB_EXTRACT	data extraction
HKL-3000	data reduction
HKL-3000	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.