7U35

Crystal Structure of UDP-N-acetylmuramoylalanine--D-glutamate ligase (MurD) from Pseudomonas aeruginosa PAO1 in complex with ADP

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	7SY9	apo structure, pdb entry 7SY9, in two domains

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7.55	287	Optimization condition around RigakuReagents JCSG Top96 B6: 21% (w/V) PEG 3350, 100mM HEPES/NaOH pH 7.55: PsaeA.17938.a.B2.PW38065 at 40mg/ml + 5mM ADP + 5mM MgCl2. Tray: 324078 e4: cryo: 20% EG + compounds in 2 steps: puck ECC9-7.

Crystal Properties
Matthews coefficient	Solvent content
2.35	47.8

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 68.19	α = 90
b = 131.18	β = 106.931
c = 79.54	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	CCD	RAYONIX MX-300		2022-02-17	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 21-ID-F	0.97872	APS	21-ID-F

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Rrim 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	1.95	50	98.2	0.044	0.049	0.999	21.07	5.111		95481			37.332

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.95	2	96.4		0.314	0.353	0.931	4.28	4.704

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	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	FREE R-VALUE	apo structure, pdb entry 7SY9, in two domains	1.95	37.91	1.35	95469	2000	98.25	0.1713	0.1705	0.2045	0	41.58

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]

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	11.2624
f_angle_d	0.8496
f_chiral_restr	0.0564
f_plane_restr	0.0074
f_bond_d	0.0067

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	9456
Nucleic Acid Atoms
Solvent Atoms	868
Heterogen Atoms	93

Software

Software
Software Name	Purpose
XDS	data reduction
XSCALE	data scaling
PHENIX	refinement
PDB_EXTRACT	data extraction
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 R01GM133198.