skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Property space mapping of Pseudomonas aeruginosa permeability to small molecules

Journal Article · · Scientific Reports

Two membrane cell envelopes act as selective permeability barriers in Gram-negative bacteria, protecting cells against antibiotics and other small molecules. Significant efforts are being directed toward understanding how small molecules permeate these barriers. In this study, we developed an approach to analyze the permeation of compounds into Gram-negative bacteria and applied it to Pseudomonas aeruginosa, an important human pathogen notorious for resistance to multiple antibiotics. The approach uses mass spectrometric measurements of accumulation of a library of structurally diverse compounds in four isogenic strains of P. aeruginosa with varied permeability barriers. We further developed a machine learning algorithm that generates a deterministic classification model with minimal synonymity between the descriptors. This model predicted good permeators into P. aeruginosa with an accuracy of 89% and precision above 58%. The good permeators are broadly distributed in the property space and can be mapped to six distinct regions representing diverse chemical scaffolds. We posit that this approach can be used for more detailed mapping of the property space and for rational design of compounds with high Gram-negative permeability.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC); Defense Threat Reduction Agency (DTRA); National Institutes of Health (NIH)
Grant/Contract Number:
AC05-00OR22725; HDTRA1-14-1-0019; RO1-AI052293; RO1-AI132836
OSTI ID:
1869114
Journal Information:
Scientific Reports, Vol. 12, Issue 1; ISSN 2045-2322
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English

References (53)

Evaluating LC–MS/MS To Measure Accumulation of Compounds within Bacteria journal June 2018
MayaChemTools: An Open Source Package for Computational Drug Discovery journal November 2016
Molecular Basis of Bacterial Outer Membrane Permeability Revisited journal December 2003
Bifurcation kinetics of drug uptake by Gram-negative bacteria journal September 2017
Biochemistry, genetics and biotechnology of glycerol utilization in Pseudomonas species journal January 2020
Caco-2 monolayers in experimental and theoretical predictions of drug transport1PII of original article: S0169-409X(96)00415-2. The article was originally published in Advanced Drug Delivery Reviews 22 (1996) 67–84.1 journal March 2001
An Integrated Microfluidic Platform for Quantifying Drug Permeation across Biomimetic Vesicle Membranes journal April 2019
Automatic atom type and bond type perception in molecular mechanical calculations journal October 2006
Synergy between Active Efflux and Outer Membrane Diffusion Defines Rules of Antibiotic Permeation into Gram-Negative Bacteria journal October 2017
Challenges of Antibacterial Discovery journal January 2011
Advances and challenges in bacterial compound accumulation assays for drug discovery journal June 2018
Comparison of simple potential functions for simulating liquid water journal July 1983
The Science of Antibiotic Discovery journal April 2020
Shared Platform for Antibiotic Research and Knowledge: A Collaborative Tool to SPARK Antibiotic Discovery journal September 2018
Molecular Properties That Define the Activities of Antibiotics in Escherichia coli and Pseudomonas aeruginosa journal May 2018
The Glycerol-Dependent Metabolic Persistence of Pseudomonas putida KT2440 Reflects the Regulatory Logic of the GlpR Repressor journal March 2015
Man lernt nie aus journal June 2016
Experimental and computational approaches to estimate solubility and permeability in drug discovery and development settings 1PII of original article: S0169-409X(96)00423-1. The article was originally published in Advanced Drug Delivery Reviews 23 (1997) 3–25. 1 journal March 2001
Quantum Mechanical Continuum Solvation Models journal August 2005
PLUMED: A portable plugin for free-energy calculations with molecular dynamics journal October 2009
Drug permeability profiling using cell-free permeation tools: Overview and applications journal July 2018
The challenge of converting Gram-positive-only compounds into broad-spectrum antibiotics: Challenges in developing broad-spectrum antibiotics journal February 2018
A well-behaved electrostatic potential based method using charge restraints for deriving atomic charges: the RESP model journal October 1993
A predictive model for drug bioaccumulation and bioactivity in Caenorhabditis elegans journal May 2010
Synthesis and Regioselective Functionalization of Piperazin-2-ones Based on Phe-Gly Pseudodipeptides: Synthesis and Functionalization of Phe-Gly-Based Piperazin-2-ones journal November 2012
Density‐functional thermochemistry. III. The role of exact exchange journal April 1993
Drug Permeation against Efflux by Two Transporters journal February 2020
Uptake of minocycline by Escherichia coli journal January 1992
Outer membrane permeability: Antimicrobials and diverse nutrients bypass porins in Pseudomonas aeruginosa journal July 2021
seaborn: statistical data visualization journal April 2021
Permeation rates of penicillins indicate that Escherichia coli porins function principally as nonspecific channels journal June 2013
Improving imbalanced learning through a heuristic oversampling method based on k-means and SMOTE journal October 2018
General Platform for Systematic Quantitative Evaluation of Small-Molecule Permeability in Bacteria journal September 2014
An Old Problem in a New Light: Antibiotic Permeation Barriers journal December 2020
Defining new chemical space for drug penetration into Gram-negative bacteria journal November 2020
Permeability barriers of Gram‐negative pathogens journal June 2019
Quantum Chemical Models (Nobel Lecture) journal July 1999
Machine Learning Algorithm Identifies an Antibiotic Vocabulary for Permeating Gram-Negative Bacteria journal May 2020
Physicochemical Properties of Antibacterial Compounds: Implications for Drug Discovery journal May 2008
The Whole Is Bigger than the Sum of Its Parts: Drug Transport in the Context of Two Membranes with Active Efflux journal February 2021
Comparison of Density Functional and MP2 Calculations on the Water Monomer and Dimer journal October 1994
Development and Optimization of a Higher-Throughput Bacterial Compound Accumulation Assay journal January 2019
It’s Not Easy Being Green: A Narrative Review on the Microbiology, Virulence and Therapeutic Prospects of Multidrug-Resistant Pseudomonas aeruginosa journal January 2021
Development of a liquid chromatography/mass spectrometry-based drug accumulation assay in Pseudomonas aeruginosa journal February 2009
Accumulation and killing kinetics of fifteen quinolones for Escherichia coil, Staphylococcus aureus and Pseudonwnas aeruginosa journal January 1993
A Database of Force-Field Parameters, Dynamics, and Properties of Antimicrobial Compounds journal August 2015
Quinolone accumulation in Escherichia coli, Pseudomonas aeruginosa, and Staphylococcus aureus journal August 1992
Predictive compound accumulation rules yield a broad-spectrum antibiotic journal May 2017
Prevalence and risk factors associated with colonization and infection of extensively drug-resistant Pseudomonas aeruginosa : a systematic review journal July 2015
Predictive Rules of Efflux Inhibition and Avoidance in Pseudomonas aeruginosa journal January 2021
Improving Conformer Generation for Small Rings and Macrocycles Based on Distance Geometry and Experimental Torsional-Angle Preferences journal March 2020
A ring-distortion strategy to construct stereochemically complex and structurally diverse compounds from natural products journal January 2013
Effect of hydrophobicity and molecular mass on the accumulation of fluoroquinolones by Staphylococcus aureus journal March 2001