Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2020 Sep 23;10:15479. doi: 10.1038/s41598-020-72484-8

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© The Author(s) 2020

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

PMC Copyright notice

Models of the autoinducer AI-1, AI-2 and AI-3 quorum sensing system of A. hydrophila. (a) Schematic representation of QS regulation by AhyI/AhyR in A. hydrophila. AhyR^* represents the active AhyR. (b) Synthesis of AHL catalysed by AhyI protein using acyl-ACP and SAM. Fas II represents type II fatty acid synthesis reactions. (c) A putative regulatory mechanism of the LuxS-type 2 QS system in A. hydrophila. (d) AI-2 synthetic routes based on LuxS protein. DPD undergoes further reactions to form distinct biologically active signal molecules (AI-2), including (2S,4S)-2-methyl-2,3,3,4-tetrahydroxytetrahydrofuryl borate (S-THMF-borate) and (2R,4S)-2-methyl-2,3,3,4-tetrahydroxytetrahydrofuran (R-THMF). (e) A putative regulatory mechanism of the QseBC-based AI-3 system in A. hydrophila. The “P” surrounded by a circle represents phosphorylation.