Kondadi Lab

@kondadilab.bsky.social

Group Leader, Medical Faculty, HHU Düsseldorf Interested in mechanisms governing the shape of mitochondrial membranes Mitochondria | Metabolism | Cristae Dynamics | Live-Cell SuperResolution | https://bit.ly/31MYs2V Posts by Arun Kondadi

We're hiring! 🔬🏔️ Looking for curious, open-minded, and multidisciplinary #PhD candidates to research at the intersection of #mitochondria, #metabolism, #imaging & #physiology, with the #Alps as a backdrop. Sounds like you or someone you know? Link below! @fbm-unil.bsky.social @unil.bsky.social

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Juan C. Landoni@jclandoni.bsky.social · 4mo ago

The Landoni Lab opens this summer at UNIL! @fbm-unil.bsky.social 🔬 Quantitative #imaging + systems biology to decipher how #metabolic architecture & #mtDNA dynamically shape tissue development, #aging and #mitodisease. Beyond excited to fire up the lasers, open positions soon! 🧪 #mitochondria #newPI

Landoni lab & UNIL logos, featuring fluorescent images of mitochondria and nematodes

🚨 Registration is open! 🚨 Join us for "Mitochondria Vol. 3: Mitochondrial Plasticity in Metabolism and Signalling", a free-of-charge international conference organized by the CRC 1218! 🗓 When: 05–07 October 2026 📍 Where: MTI, UzK Cologne, Germany 👉 Register now: mitochondria-volume3.uni-koeln.de

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It was wonderful to organize the @gbmev.bsky.social Cellular Organelles meeting in Düsseldorf along with Andreas Reichert at University of Düsseldorf. Leading Organelles biologists from Germany attended the 2025 meeting. Thanks to the constant support from Konstanze Winklhofer and Johannes Hermann

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For the attention of all the Organelle researchers in Germany, the Annual meeting of the @gbmev.bsky.social study section Cellular Organelles will be held in Düsseldorf …. Seats fast filling up … please submit your abstract … information below: gbm-online.de/de/tagungska...

2nd Meeting of the Study Group "Cellular Organelles" - Homepage der Gesellschaft für Biochemie und Molekularbiologie e.V.

organized by Arun Kumar Kondadi and Andreas Reichert

gbm-online.de

Very special feelings to announce this one... A project that started like 10 years ago is reaching the finish line, ready to shine. In a dream-team with @beckmannlab.bsky.social we solved the long-chased structure of the active membrane protein insertase SecYEG-YidC www.biorxiv.org/content/10.1...

Substrate-induced assembly and functional mechanism of the bacterial membrane protein insertase SecYEG-YidC

The universally conserved Sec translocon and the YidC/Oxa1-type insertases mediate biogenesis of alpha-helical membrane proteins, but the molecular basis of their cooperation has remained disputed over decades. A recent discovery of a multi-subunit insertase in eukaryotes has raised the question about the architecture of the putative bacterial ortholog SecYEG-YidC and its functional mechanism. Here, we combine cryogenic electron microscopy with cell-free protein synthesis in nanodiscs to visualize biogenesis of the polytopic membrane protein NuoK, the subunit K of NADH-quinone oxidoreductase, that requires both SecYEG and YidC for insertion. We demonstrate that YidC is recruited to the back of the translocon at the late stage of the substrate insertion, in resemblance to the eukaryotic system, and in vivo experiments indicate that the complex assembly is vital for the cells. The nascent chain does not utilize the lateral gate of SecYEG, but enters the lipid membrane at the SecYE-YidC interface, with YidC being the primary insertase. SecYEG-YidC complex promotes folding of the nascent helices at the interface prior their insertion, so the examined cellular pathway follows the fundamental thermodynamic principles of membrane protein folding. Our data provide the first detailed insight on the elusive insertase machinery in the physiologically relevant environment, highlight the importance of the nascent chain for its assembly, and prove the evolutionary conservation of the gate-independent insertion route. ### Competing Interest Statement The authors have declared no competing interest. Deutsche Forschungsgemeinschaft, https://ror.org/018mejw64, Ke1879/3, 267205415 (CRC 1208) European Research Council, https://ror.org/0472cxd90, CRYOTRANSLATION

biorxiv.org

What complex are you if you have a very versatile company in close proximity? The MICOS Complex. We present the MINDNet: Proximity Proteomics revealing the nanodomain interactome in the mitochondrial inner membrane, done by the talented Yulia and team.

bioRxiv Cell Biology@biorxiv-cellbio.bsky.social · last yr.

MINDNet: Proximity interactome of the MICOS complex revealing a multifaceted network orchestrating mitochondrial biogenesis https://www.biorxiv.org/content/10.1101/2025.05.20.655052v1

What complex are you if you have a very versatile company in close proximity? The MICOS Complex. We present the MINDNet: Proximity Proteomics revealing the nanodomain interactome in the mitochondrial inner membrane, done by the talented Yulia and team.

bioRxiv Cell Biology@biorxiv-cellbio.bsky.social · last yr.

MINDNet: Proximity interactome of the MICOS complex revealing a multifaceted network orchestrating mitochondrial biogenesis https://www.biorxiv.org/content/10.1101/2025.05.20.655052v1

Some days are very satisfying as mentor…The Kondadi Lab is thrilled that Rebecca Strohm has won best Poster Prize at the recent Gordon Conference: Mitochondria Metabolism and Signaling at Ventura, California. Congratulations Rebecca💐… Keep going

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Today is Rare disease day! There are over 6000 rare diseases that present with a variety of symptoms affecting all organs. Although we call them rare, they affect over 300 millions of individuals world-wide. Help raise awareness, so we, scientists, can search for cures.

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