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Alexander Stockhammer

@stedhammer.bsky.social

PostDoc at Ungermann Lab / Still fascinated by live-cell microscopy and post-Golgi adaptors / Just entered the world of yeast-biology and HOPS

60 Followers  |  80 Following  |  1 Posts  |  Joined: 26.11.2024  |  1.5195

Latest posts by stedhammer.bsky.social on Bluesky

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An Asgard archaeon with internal membrane compartments

Brilliant study led by @fmacleod.bsky.social and Andriko von Kรผgelgen. Tight collaboration with @buzzbaum.bsky.social and lab. Congrats to all authors!

www.biorxiv.org/content/10.1...

07.11.2025 10:44 โ€” ๐Ÿ‘ 384    ๐Ÿ” 170    ๐Ÿ’ฌ 10    ๐Ÿ“Œ 22
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StayRose: a photostable StayGold derivative red-shifted by genetic code expansion Photobleaching of fluorescent proteins often limits the acquisition of high-quality images in microscopy. StayGold, a novel dimeric green fluorescent protein recently monomerised through sequence engi...

mStayRose is published in JBC ๐Ÿฅณ๐ŸŽ‰

Congratulations @wsctt.bsky.social @sporemohan.bsky.social and team for the monumental effort to make a non-natural amino acid incorporating fluorescent protein accessible. It's based on mStayGold, bright, and photostable:

www.jbc.org/article/S002...

22.10.2025 16:58 โ€” ๐Ÿ‘ 85    ๐Ÿ” 28    ๐Ÿ’ฌ 5    ๐Ÿ“Œ 2
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Postdoctoral Research Assistant - MCDB - UOD2016 Closing date: Thursday 6 November 2025, 23:59

Attention membrane traffickers! I'm recruiting a post-doc to my lab in Dundee. We're dissecting the functions of intrinsically disordered domains of COPII coat proteins. We think they control timing of coat assembly and morphology of carriers.

www.dundee.ac.uk/work-for-us/...

15.10.2025 12:53 โ€” ๐Ÿ‘ 38    ๐Ÿ” 36    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 3
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๐Ÿ‘‰ New publication ahead of print from our lab: tinyurl.com/ye7pntte
We show that the protein SPG21, mutated in hereditary spastic paraplegia 21, localizes to endolysosomes via RAB7A, where it promotes mTORC1-dependent TFEB phosphorylation, reducing expression of a subset of TFEB regulated genes

21.08.2025 18:02 โ€” ๐Ÿ‘ 36    ๐Ÿ” 11    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Out today in @nature.com: Together with the Honigmann, Shevchenko, Drobot and Hof labs, we present a general workflow for imaging the localization and transport of individual lipids in cells and mapping their metabolism.
www.nature.com/articles/s41...

21.08.2025 05:18 โ€” ๐Ÿ‘ 344    ๐Ÿ” 129    ๐Ÿ’ฌ 31    ๐Ÿ“Œ 23
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Fast, Bright and Reversible Rhodamine Tags for Live-Cell Imaging We present Rho-tag and SiR-tag, engineered protein tags derived from bacterial multidrug-resistance proteins that bind unsubstituted (silicon-) rhodamines with nanomolar affinity, enabling fast, rever...

Teaching an old bacterial protein new tricks: Fast, bright and reversible rhodamine tags for live-cell imaging:

www.biorxiv.org/content/10.1...

Congratulations to Julian Kompa and the entire team.

09.07.2025 19:58 โ€” ๐Ÿ‘ 51    ๐Ÿ” 23    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 1
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Cell scientist to watch โ€“ Francesca Bottanelli ABSTRACT. Francesca Bottanelli is an Assistant Professor in the Department of Biochemistry at Freie Universitรคt Berlin (Germany). Francesca graduated in Plant Biotechnology from the University of Mila...

journals.biologists.com/jcs/article/... "Until I started my PhD, I played guitar in an all-girl punk rock band. We played gigs around Milan, and there are still some videos floating around on YouTube (no, I won't tell you the band name!)" We definitely picked the right JCS 2026 meeting organiser!

27.05.2025 20:46 โ€” ๐Ÿ‘ 36    ๐Ÿ” 3    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 1
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Enhanced axonal transport in large vertebrates: KIF5A adaptations in giraffes and pythons Efficient axonal transport is essential for neuronal function, particularly in species with exceptionally long axons. The Kinesin-1 motor protein KIF5A plays a key role in this process, but whether an...

Finally! (remember the famous 2022 ASCB poster and Twitter discussion) www.biorxiv.org/content/10.1...

05.05.2025 17:05 โ€” ๐Ÿ‘ 42    ๐Ÿ” 13    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 2
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Any1 is a phospholipid scramblase involved in #endosome biogenesis, say Jieqiong Gao, Christian Ungermann and colleagues (Osnabrรผck University): rupress.org/jcb/article/...

#Membrane #lipid #Organelles #Biochemistry

13.03.2025 14:38 โ€” ๐Ÿ‘ 22    ๐Ÿ” 8    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 1
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Do you LOVE organelles??
Well I am THRILLED to announce that Nellie has been published in @naturemethods.bsky.social!

Nellie a fully automated pipeline for organelle segmentation, tracking, and hierarchical feature extraction in 2D, 3D, timelapse, multichannel live-cell microscopy

๐Ÿงต1/N

27.02.2025 20:13 โ€” ๐Ÿ‘ 188    ๐Ÿ” 74    ๐Ÿ’ฌ 4    ๐Ÿ“Œ 10
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ร…NGSTRร–M-RESOLUTION IMAGING OF CELL-SURFACE GLYCANS ๐Ÿงฌ๐ŸŽจ๐Ÿฌ

The glycocalyx, our cells' sugar coat, holds secrets in immunology, cancer, viral infections, and more. Visualizing its molecular architecture was impossibleโ€ฆ until now. #glycotime #microscopy

www.biorxiv.org/content/10.1...

10.02.2025 08:21 โ€” ๐Ÿ‘ 314    ๐Ÿ” 102    ๐Ÿ’ฌ 15    ๐Ÿ“Œ 15
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Itโ€™s incredibly hard to study lipids in biological membranes on the nanoscale. You need near-perfect information on both membrane ultrastructure and lipid density, which usually isnโ€™t attainable. Lipid-CLEM brought to you by @mathilda95.bsky.social changes that.
www.biorxiv.org/content/10.1...

31.01.2025 10:28 โ€” ๐Ÿ‘ 237    ๐Ÿ” 78    ๐Ÿ’ฌ 12    ๐Ÿ“Œ 4

I have never seen such a red one though, quite impressive!

13.01.2025 15:50 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Love #lipids and #membranes??? Then you cannot miss these seminars tomorrow with two amazing rising โญ๏ธ โญ๏ธ @abelljonny.bsky.social @ibudin.bsky.social

04.12.2024 20:26 โ€” ๐Ÿ‘ 12    ๐Ÿ” 5    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

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