Use of small-angle X-ray scattering to resolve intracellular structure changes of Escherichia coli cells induced by antibiotic treatment
- Ruhr Univ., Bochum (Germany). Analytical Chemistry-Biointerfaces
- Helmholtz-Zentrum Geesthacht (HZG), (Germany). German Research Centre for Materials and Energy
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Argonne National Lab. (ANL), Argonne, IL (United States). X-ray Science Division
- St. George's Univ. of London (SGUL) (United Kingdom). Inst. of Infection and Immunity
The application of small-angle X-ray scattering (SAXS) to whole Escherichia coli cells is challenging owing to the variety of internal constituents. To resolve their contributions, the outer shape was captured by ultra-small-angle X-ray scattering and combined with the internal structure resolved by SAXS. Building on these data, a model for the major structural components of E. coli was developed. It was thus possible to deduce information on the occupied volume, occurrence and average size of the most important intracellular constituents: ribosomes, DNA and proteins. E. coli was studied after treatment with three different antibiotic agents (chloramphenicol, tetracycline and rifampicin) and the impact on the intracellular constituents was monitored.
- Research Organization:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities Division; Helmholtz Association of German Research Centres, Hamburg (Germany). German Electron Synchrotron (DESY) PETRA III and Helmholtz Virtual Institute (VI); German Research Foundation (DFG); National Science Foundation (NSF)
- Grant/Contract Number:
- AC52-07NA27344; NSF/CHE-1346572; AC02-06CH11357
- OSTI ID:
- 1459123
- Report Number(s):
- LLNL-JRNL-748354; JACGAR; 930441; TRN: US1901542
- Journal Information:
- Journal of Applied Crystallography (Online), Vol. 49, Issue 6; ISSN 1600-5767
- Publisher:
- International Union of CrystallographyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
In vivo analysis of the Escherichia coli ultrastructure by small-angle scattering
|
journal | September 2017 |
Mechanisms of Action for Antimicrobial Peptides With Antibacterial and Antibiofilm Functions
|
journal | December 2019 |
BioSAXS Measurements Reveal That Two Antimicrobial Peptides Induce Similar Molecular Changes in Gram-Negative and Gram-Positive Bacteria
|
journal | September 2019 |
BioSAXS Measurements Reveal That Two Antimicrobial Peptides Induce Similar Molecular Changes in Gram-Negative and Gram-Positive Bacteria
|
text | January 2019 |
Similar Records
Molecular Properties That Define the Activities of Antibiotics in Escherichia coli and Pseudomonas aeruginosa
An optogenetic toolkit for light-inducible antibiotic resistance