#ftsex
November 2, 2025 at 4:50 PM Everybody can reply
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Delighted that our FtsEX-EnvC paper is now live at mBio!

FtsEX-EnvC is a bacterial Type VII ABC transporter that activates key periplasmic enzymes during cell division.

We found mutations that disrupt FtsEX-EnvC activity and a disulfide that leaves it permanently active.

doi.org/10.1128/mbio...
September 16, 2025 at 3:29 PM Everybody can reply
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Through site-directed mutagenesis, the researchers identified mutations that disrupt the autoinhibition mechanism of FtsEX-EnvC, as well as a variant that prevents activation.
September 14, 2025 at 5:54 PM Everybody can reply
Structural and molecular dynamics simulations reveal the mechanotransduction mechanism of FtsEX. Check the #cryoEM #structure of this #membrane #protein in the UniTmp database.
pdbtm.unitmp.org
March 21, 2025 at 8:00 AM Everybody can reply
Structural insights into the FtsEX-EnvC complex regulation on septal peptidoglycan hydrolysis in Vibrio cholerae. Cell . Check it in the UniTmp database: https://pdbtm.unitmp.org/entry/8tzj
www.cell.com
March 14, 2024 at 3:29 PM Everybody can reply
A paper using RRID:SCR_015872 was just published in Structure see "Structural insights into the FtsEX-EnvC complex regulation on septal peptidoglycan hydrolysis in Vibrio cholerae". Thank you for making your methods matter! #STMpublishing #accelerateopenscience
doi.org
April 13, 2025 at 7:01 AM Everybody can reply
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Probing the mechanism of peptidoglycan amidase activation by FtsEX-EnvC https://www.biorxiv.org/content/10.1101/2025.04.02.646785v1
April 3, 2025 at 4:46 AM Everybody can reply
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November 5, 2025 at 5:02 AM Everybody can reply
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Type VII ABC transporters are unique to bacteria with important physiological functions.

Examples are the FtsEX-EnvC complex (cell division), the MacAB-TolC efflux pump (antibiotic resistance) and LolCDE-LolA (lipoprotein trafficking) system.

Here we define YbbAP-TesA as a novel esterase complex.
May 19, 2025 at 2:55 PM Everybody can reply
cross·posting from 𝕏 > bacterial cell divisionists take note 👇

Structural insights into the FtsEX-EnvC complex regulation on septal PG hydrolysis in V. cholerae
www.biorxiv.org/content/10.1...
#CryoEM #ABCtransporter #MembraneProteins #MicroSky

thx @Bramkamplab for the shoutout🙏
October 9, 2023 at 10:06 PM Everybody can reply
3 reposts 11 likes
Regulation of the essential peptidoglycan hydrolytic complex FtsEX-PcsB during Streptococcus pneumoniae cell division https://www.biorxiv.org/content/10.1101/2025.05.23.655736v1
May 24, 2025 at 4:46 AM Everybody can reply
New preprint!

FtsEX-EnvC is a Type VII ABC transporter that activates the periplasmic enzymes needed to break the peptidoglycan layer during cell division.

We tested the importance of structural features underpinning activation and the auto-inhibition mechanism that keeps it all in check.
Probing the mechanism of peptidoglycan amidase activation by FtsEX-EnvC
The FtsEX-EnvC-AmiA/B system is a key component of the E. coli cell division machinery that directs breakage of the peptidoglycan layer during separation of daughter cells. Structural and mechanistic ...
www.biorxiv.org
April 7, 2025 at 2:38 PM Everybody can reply
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Regulation of the essential peptidoglycan hydrolytic complex FtsEX-PcsB during Streptococcus pneumoniae cell division https://www.biorxiv.org/content/10.1101/2025.05.23.655736v1
May 24, 2025 at 4:46 AM Everybody can reply
Unraveling the intricate dance of cell division: how the FtsEX-EnvC system precisely controls peptidoglycan amidase activation to prevent cell lysis in E. coli.

🧵 Thread below

Full analysis: https://helixbrief.com/article/187d319a-ad82-48ce-b863-c28d019d8e86
September 14, 2025 at 5:54 PM Everybody can reply
This study delves into the mechanism behind the FtsEX-EnvC system, a key component of the E. coli cell division machinery that regulates the breakage of the peptidoglycan layer during daughter cell separation.
September 14, 2025 at 5:54 PM Everybody can reply
Probing the mechanism of peptidoglycan amidase activation by FtsEX-EnvC https://www.biorxiv.org/content/10.1101/2025.04.02.646785v1
April 3, 2025 at 4:46 AM Everybody can reply