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Jaana Mannik

@jaanamannik

Cell & molecular biologist. Biophysics research @Univ. of Tennessee, Knoxville. volweb.utk.edu/~jmannik/ Unraveling the self-assembly process of cell division machinery in E. coli.

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17.11.2024
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Latest posts by Jaana Mannik @jaanamannik

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The registration is now open for BACELL meeting on 8-9 June 2026 at University of Malaga, Spain.

Register and submit abstract for oral or poster presentation: bacell2026.eu

Deadline for abstract submission: 31 March 2026
Registration deadline: 15 May 2026

Organizer @diegromero.bsky.social

09.03.2026 14:31 ๐Ÿ‘ 9 ๐Ÿ” 9 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

(bacterial) chromosome segregationists take note ๐Ÿ‘‡

membrane-anchoring of the ๐˜ฐ๐˜ณ๐˜ช๐˜Š region to ensure proper daughter chromosome segregation after replication initiation โ€“ proposed decades ago but never substantiated... ๐Ÿ‘‰now shown for ๐˜š. ๐˜ข๐˜ถ๐˜ณ๐˜ฆ๐˜ถ๐˜ด by mariana pinho's lab

07.03.2026 11:34 ๐Ÿ‘ 31 ๐Ÿ” 12 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
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Diversity, ecology, cell biology and evolution of the Asgard archaea - Nature Reviews Microbiology The Asgard archaea have become a cornerstone of archaeal research, particularly for studies aiming to unravel the origin and early evolution of eukaryotes. This Review outlines the current state of th...

Just over ten years after the discovery of the first Asgard archaeal genomes, we revisit the rapid expansion of this remarkable archaeal lineage. From diverse genomes and metabolisms to eukaryotic signature proteins and the first cultured representatives.
www.nature.com/articles/s41...

05.03.2026 10:26 ๐Ÿ‘ 48 ๐Ÿ” 27 ๐Ÿ’ฌ 3 ๐Ÿ“Œ 1

We are one of the potential host labs for a Lecturer position in Molecular Genetics & Genomics โ€” please share, and get in touch for more info! ๐Ÿงฌ๐Ÿ“ฃ

04.03.2026 06:56 ๐Ÿ‘ 21 ๐Ÿ” 21 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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New post-doctoral research position in my phage-host interactions (Phi) laboratory in @otagomicroimmuno.bsky.social at @universityofotago.bsky.social New Zealand. The project is focused on defences against jumbo phages. Please share and if interested apply using the link in the comments.

04.03.2026 00:20 ๐Ÿ‘ 51 ๐Ÿ” 50 ๐Ÿ’ฌ 5 ๐Ÿ“Œ 2
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Save the date for the next International Conference on Gram-Positive Bacteria which will take place between 29 Juneโ€“2 July 2027. The organizers (@annadragos.bsky.social, @polonca32.bsky.social, and Ines Mandic-Mulec) look forward to welcoming you to Ljubljana, Slovenia

03.03.2026 14:08 ๐Ÿ‘ 17 ๐Ÿ” 10 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
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The NIH Restructuring Congress Rejected Is Happening Anyway (I used Gemini Nano Banana 2 to create this fictional image.)
02.03.2026 12:08 ๐Ÿ‘ 3 ๐Ÿ” 2 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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Biological Laboratory | LEGOยฎ Ideas This is a two-floor realistic Biological Laboratory building. In this design, I try to tell stories about biologists, introduce biology concepts to general publโ€ฆ

I just made an account and voted for this biology laboratory made of LEGO to "promote biological research and inspire more people into the world of biology". They need 10K votes. Reposting and/or voting below would be helpful. ๐Ÿค—
beta.ideas.lego.com/product-idea...

16.10.2025 08:07 ๐Ÿ‘ 221 ๐Ÿ” 131 ๐Ÿ’ฌ 8 ๐Ÿ“Œ 12

Posting again!

24.02.2026 15:49 ๐Ÿ‘ 4 ๐Ÿ” 10 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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Weโ€™re hiring at VIDO!

๐Ÿ”ฌ Principal Research Scientist โ€“ ESKAPE Pathogens
๐Ÿ„ Principal Research Scientist โ€“ Bovine Respiratory Disease
๐Ÿ›ก๏ธ Associate Biosafety Officer

Help us advance infectious disease research. Apply today: vido.org/careers/curr...

@usask.ca

23.02.2026 16:49 ๐Ÿ‘ 1 ๐Ÿ” 3 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 1
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Weโ€™re hiring a Microscopy Core Director at the Wadsworth Center!
It's a state position (job stability & PENSION!) in a uniquely academic, research-driven environment ๐Ÿ˜Ž
Please share ๐Ÿ™
statejobs.ny.gov/public/vacan...

23.02.2026 17:37 ๐Ÿ‘ 6 ๐Ÿ” 15 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

Exciting line up of talks for CauloCon 2026 - includes keynotes from @brunlabcaulo.bsky.social @lamasonlab.bsky.social and @thanbichlerlab.bsky.social! Hear work from Isaac Payne and Trung Nguyen, 2 students in my lab, on Weds and Thurs. ๐Ÿคฉ

23.02.2026 17:52 ๐Ÿ‘ 10 ๐Ÿ” 7 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
"The Cyclops," painted by Odilon Redon, 1914. Via Wikipedia

"The Cyclops," painted by Odilon Redon, 1914. Via Wikipedia

The origin of our eyes over half a billion years ago is looking more and more weird--from a cyclops to four eyes to two. Here's my story (gift link): nyti.ms/4rzisQP

23.02.2026 16:38 ๐Ÿ‘ 136 ๐Ÿ” 34 ๐Ÿ’ฌ 3 ๐Ÿ“Œ 2

University of Toronto is hiring:
Assistant Professor of Molecular and Cell Biology

#assistantprofessorposition

22.02.2026 12:36 ๐Ÿ‘ 10 ๐Ÿ” 25 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
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๐Ÿ“ข๐Ÿ“ข๐Ÿ“ขLectureships at Bristol!๐Ÿ“ข๐Ÿ“ข๐Ÿ“ข

We're hiring 3 x lecturers (=assistant professor) in Biological Sciences, across the discipline.

Great department, great colleagues, great building, great city

Details here:
www.bristol.ac.uk/jobs/find/de...

18.02.2026 08:16 ๐Ÿ‘ 50 ๐Ÿ” 82 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
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How baby microbiomes in the West differ from those everywhere else Babies in the West commonly lack a gut microbe that is found in infants in other parts of the world, which may be due to differences in their mothers' diets

How #baby #microbiomes in the West differ from those everywhere else ...

| #microbes | #bacteria | #diets | #gut | #stool | Via @newscientist.com

20.02.2026 10:00 ๐Ÿ‘ 3 ๐Ÿ” 1 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

Putting a lot of work into a grant that probably won't get funded due to lack of funding in NIH/NSF. So I'm curious scientists: what work were you excited about that didn't get funding?

Non-scientists, this is the work we are missing out on in the US when we don't fully fund NIG/NSF/USDA/etc

20.02.2026 17:31 ๐Ÿ‘ 94 ๐Ÿ” 30 ๐Ÿ’ฌ 8 ๐Ÿ“Œ 3
Screenshot from an NIH website reading: "Table 1 shows the number of principal investigators (PIs) applying for or receiving an R01-equivalent grant in FYs 2021 to 2025, disaggregated by career stage. NIH supported 1,423 and 1,144 ESIs in FYs 2024 and 2025, respectively. The decrease seen in FY 2025 may likely be due in part to NIH implementing a requirement to use 50% of its remaining competing Research Project Grant (RPG) funds (starting in June 2025) for full-year funded competing RPGs, which was expected to lead to fewer awards and support fewer researchers overall."

Screenshot from an NIH website reading: "Table 1 shows the number of principal investigators (PIs) applying for or receiving an R01-equivalent grant in FYs 2021 to 2025, disaggregated by career stage. NIH supported 1,423 and 1,144 ESIs in FYs 2024 and 2025, respectively. The decrease seen in FY 2025 may likely be due in part to NIH implementing a requirement to use 50% of its remaining competing Research Project Grant (RPG) funds (starting in June 2025) for full-year funded competing RPGs, which was expected to lead to fewer awards and support fewer researchers overall."

Check this out straight from the NIH website, acknowledging that multiyear funding was likely responsible for a 20% decrease in early stage investigators.

And that it was expected.

A strange approach for someone so committed to the next generation of scientists.

grants.nih.gov/news-events/...

20.02.2026 18:32 ๐Ÿ‘ 125 ๐Ÿ” 58 ๐Ÿ’ฌ 2 ๐Ÿ“Œ 2
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Xiaofeng combined 2D live-cell single-particle tracking with 3D simulations to specifically measure the bacterial nucleoid accessibility and viscosity! Our preprint describes how these nucleoid properties respond to cellular processes! Code is available too.
www.biorxiv.org/content/10.6...

20.02.2026 15:31 ๐Ÿ‘ 31 ๐Ÿ” 14 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 1
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Come join #LaurierBiology!
We're recruiting 3 tenure-track faculty positions!

Integrative Organismal Zoologist!
careers.wlu.ca/job/Waterloo...

Microbial Systems Biologist!
careers.wlu.ca/job/Waterloo...

Computational Ecology/Modeling Biologist!
careers.wlu.ca/job/Waterloo...

DEADLINE MARCH 22nd!

20.02.2026 22:57 ๐Ÿ‘ 15 ๐Ÿ” 29 ๐Ÿ’ฌ 2 ๐Ÿ“Œ 0
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Bacteria frozen in ancient underground ice cave found to be resistant against 10 modern antibiotics Bacteria lurk everywhere. However, it’s only after researchers retrieve them from the most remote corners of the Earth that we can learn more about the risks and potentials they pose. When resea...

Bacteria frozen in ancient underground ice cave found to be resistant against 10 modern antibiotics | EurekAlert! www.eurekalert.org/news-release...

18.02.2026 17:02 ๐Ÿ‘ 19 ๐Ÿ” 16 ๐Ÿ’ฌ 3 ๐Ÿ“Œ 21
A pilot in a submersible vehicle collecting sediments samples in 30 meters of water looking for Asgards (microbial relatives of eukaryotes)

A pilot in a submersible vehicle collecting sediments samples in 30 meters of water looking for Asgards (microbial relatives of eukaryotes)

One of the biggest questions in biology is how complex cells evolved about 2 billion years ago. Here's my new story on how scientists are solving the mystery of eukaryotes like us. Gift link: nyti.ms/4qMbo22

18.02.2026 19:17 ๐Ÿ‘ 341 ๐Ÿ” 104 ๐Ÿ’ฌ 9 ๐Ÿ“Œ 8

To learn more about this work, please read our preprint. We look forward to your comments and feedback. www.biorxiv.org/content/10.1... 13/end

15.02.2026 15:37 ๐Ÿ‘ 0 ๐Ÿ” 1 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
Research Group Leader Tenure Track - Structural Studies - LMB 2775 - Medical Research Council Location: Cambridge. Vacancy: Research Group Leader Tenure Track - Structural Studies - LMB 2775. Closing Date: 16/03/2026, 23:55

Please spread the word: the Structural Studies Division @mrclmb.bsky.social is looking for a new tenure-track, independent group leader with an exciting plan in any area of Structural (Molecular & Cell) biology, in discovery biology and/or methods development. ๐Ÿฅณ

mrc.tal.net/vx/mobile-0/...

16.02.2026 12:09 ๐Ÿ‘ 83 ๐Ÿ” 106 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 2
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How did life arise from simple chemical building blocks?

New #LMBResearch led by @edogia.bsky.social in @philholliger.bsky.social group has identified a small self-replicating ribozyme that could be the answer.

Read more: mrclmb.ac.uk/news-events/...

13.02.2026 10:20 ๐Ÿ‘ 52 ๐Ÿ” 31 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 2
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The moment youโ€™ve all been waiting forโ€ฆ

๐Ÿฆ  SAVE THE DATE! ๐Ÿฆ 

BBM2026 will be held from June 22nd - 23rd at Boston Universityโ€™s George Sherman Union. Our featured speaker this year is Dr. Eric Skaar from Vanderbilt University!

Registration opens soon!

More info at: bostonbacterial.org

#BBM2026

12.02.2026 11:37 ๐Ÿ‘ 21 ๐Ÿ” 17 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
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Unveiling hidden variables in stressed bacteria

@cp-cellreports.bsky.social Review by @divyach.bsky.social and @maxencevincent.bsky.social

www.cell.com/cell-reports...

11.02.2026 08:40 ๐Ÿ‘ 36 ๐Ÿ” 17 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 1
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I present the most interesting graph ever made.

HUMAN ON BICYCLE beats every other living thing.
www.scientificamerican.com/article/a-hu...

05.02.2026 05:49 ๐Ÿ‘ 227 ๐Ÿ” 76 ๐Ÿ’ฌ 18 ๐Ÿ“Œ 5
The bacterial RNA polymerase-associated CarD protein couples promoter activity to DNA supercoiling - Nature Communications The transcription factor CarD facilitates the activation of transcription in many bacteria and in Rhodobacter sphaeroides, CarD compensates for suboptimal promoter DNA sequences. Here, the authors sho...

In our most recent work David Forrest has discovered a widespread mechanisms linking transcription initiation to DNA supercoiling...

www.nature.com/articles/s41...

06.02.2026 15:36 ๐Ÿ‘ 24 ๐Ÿ” 14 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0

If you have an interest in mixing computation and experiments to understand microbial evolution (for example antibiotic resistance) and you think you might be a good fit for a postdoc in my lab, reach out. If it seems it might be a fit Iโ€™m happy to help you frame it as AI for Biology per this call

06.02.2026 01:04 ๐Ÿ‘ 25 ๐Ÿ” 20 ๐Ÿ’ฌ 2 ๐Ÿ“Œ 0