DEB, Rahul, Ivo KABELKA, Jan PŘIBYL and Robert VÁCHA. De novo design of peptides that form transmembrane barrel pores killing antibiotic resistant bacteria. In BPS Annual Meeting 2023. 2023.
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Basic information
Original name De novo design of peptides that form transmembrane barrel pores killing antibiotic resistant bacteria
Name in Czech De novo design peptidů, které tvoří transmembránové válcovité póry zabíjející bakterie odolné vůči antibiotikům
Authors DEB, Rahul, Ivo KABELKA, Jan PŘIBYL and Robert VÁCHA.
Edition BPS Annual Meeting 2023, 2023.
Other information
Original language English
Type of outcome Konferenční abstrakta
Country of publisher United States of America
Confidentiality degree is not subject to a state or trade secret
WWW URL
Organization Středoevropský technologický institut – Repository – Repository
Keywords (in Czech) návrh antimikrobiálních peptidů; transmembránové nanopóry; mikroskopie atomárních sil, KryoEM
Keywords in English antimicrobial peptide design; transmembrane nanopores; atomic force microscopy; CryoEM
Links LM2018127, research and development project. LX22NPO5103, research and development project. CIISB III, large research infrastructures.
Changed by Changed by: RNDr. Daniel Jakubík, učo 139797. Changed: 7/4/2024 04:04.
Abstract
De novo design of peptides that self-assemble into transmembrane barrel-like nanopores is challenging due to the complexity of several competing interactions involving peptides, lipids, water, and ions. We have develop a computational approach for the de novo design of α-helical peptides that self-assemble into stable transmembrane barrel pores with a central nano-sized functional channel. We formulate the previously missing design guidelines and report 52 sequence patterns that can be tuned for specific applications using the identified role of each residue. Atomic force microscopy, fluorescent dye leakage, and cryo-EM experiments confirm that the designed peptides form leaky membrane nanopores in vitro. Customized designed peptides act as antimicrobial agents able to kill even antibiotic-resistant ESKAPE bacteria at micromolar concentrations, while exhibiting low toxicity to human cells. The peptides and their assembled nanopore structures can be similarly fine-tuned for other medical and biotechnological applications.
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  • a concrete person Mgr. Lucie Vařechová, uco 106253
  • a concrete person RNDr. Daniel Jakubík, uco 139797
  • a concrete person Mgr. Jolana Surýnková, uco 220973
  • a concrete person Mgr. Michal Maňas, uco 2481
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