Sarah Svensson's Avatar

Sarah Svensson

@campy-bara.bsky.social

Shanghai Institute of Materia Medica (the Institute formerly known as Pasteur and Shanghai Institute of Immunity and Infection) Vibrio, Campy, Helicobacter, sRNAs & reverse ecology ๐Ÿ‡จ๐Ÿ‡ฆ

1,861 Followers  |  910 Following  |  122 Posts  |  Joined: 07.12.2023  |  1.6501

Latest posts by campy-bara.bsky.social on Bluesky

Post image Post image Post image

Happy CNY ๐Ÿฎ๐Ÿงง๐ŸŽ‡

16.02.2026 12:02 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Do you want to pursue your ideas in computational biology independently, running your group in @embl.orgโ€˜s uniquely collaborative environment, beside worldโ€™s most comprehensive biomolecular data resources @ebi.embl.org in Genome Campus next to @sangerinstitute.bsky.social?
Apply to join us & share ๐Ÿ™

16.02.2026 07:38 โ€” ๐Ÿ‘ 11    ๐Ÿ” 13    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
Our new cat perched on a laptop, demanding attention. (We used to be a dog family, lost our 17.5 yo dog a few months ago, and just adopted a cat with a surprisingly dog-like personality)

Our new cat perched on a laptop, demanding attention. (We used to be a dog family, lost our 17.5 yo dog a few months ago, and just adopted a cat with a surprisingly dog-like personality)

How your email finds me

15.02.2026 19:43 โ€” ๐Ÿ‘ 77    ๐Ÿ” 8    ๐Ÿ’ฌ 5    ๐Ÿ“Œ 0
Preview
Working at HIRI At the HIRI, we do not just value excellent research. Short distances, an open door policy, and a good working atmosphereโ€”this is what distinguishes us from others. Have a look at our current jobโ€ฆ

๐Ÿงฌ Shape the future of #RNA-based infection research!
We are inviting applications for @helmholtz.de Junior Research Group Leader Positions (f/m/d). ๐Ÿ‘‰ Apply by February 15 at www.helmholtz-hiri.de/en/jobs-tale...
(1/2)

05.02.2026 15:44 โ€” ๐Ÿ‘ 8    ๐Ÿ” 9    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 2
Post image

Happy birthday to one of my favourite haters, Charles Darwin

12.02.2026 16:31 โ€” ๐Ÿ‘ 10180    ๐Ÿ” 3035    ๐Ÿ’ฌ 160    ๐Ÿ“Œ 415
Post image

1/2
"All T6SS-inducing regulators are equal, but some regulators are more equal than others".
Preprint ๐Ÿšจ: We use #Vibrio to show that #T6SS activation by regulator manipulation may result in the expression of different effector repertoires, affecting toxicity ๐Ÿฆ 
www.biorxiv.org/content/10.6...

12.02.2026 09:53 โ€” ๐Ÿ‘ 13    ๐Ÿ” 8    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Quantitative RNA pseudouridine landscape reveals dynamic modification patterns and evolutionary conservation across bacterial species ๐Ÿฆ https://www.biorxiv.org/content/10.1101/2025.05.13.653745v2.full

12.02.2026 10:41 โ€” ๐Ÿ‘ 2    ๐Ÿ” 3    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

A stable, hierarchical LIN code system for Campylobacter jejuni and Campylobacter coli: A unified genomic nomenclature for lineage-level typing and global surveillance. https://www.biorxiv.org/content/10.64898/2026.02.10.705007v1

11.02.2026 02:16 โ€” ๐Ÿ‘ 3    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 1

Calling all curious minds!๐Ÿง ๐Ÿ’ก

As part of the โ€œCURIOSITY IS INFECTIOUSโ€ initiative, @helmholtzhzi.bsky.social is offering 10 fully funded PhD positions in infection research across its five sites.
At #HIRI, we are especially excited to welcome PhD candidates who are passionate about all things #RNA.๐Ÿงฌ

11.02.2026 09:35 โ€” ๐Ÿ‘ 3    ๐Ÿ” 3    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 0

Do you want to understand how RNA #splicing decisions are made? Weโ€˜ve got a PhD position open for you (see ๐Ÿ‘‡๐Ÿ‘‡)!!
Please share #RNAsky and RT!

tinyurl.com/4ztu9cb9

11.02.2026 08:20 โ€” ๐Ÿ‘ 9    ๐Ÿ” 12    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Preview
gradient.horse Draw a horse, watch it run!

omg everybody go draw a horse this is what the internet was made for

gradient.horse

09.02.2026 23:11 โ€” ๐Ÿ‘ 6979    ๐Ÿ” 3610    ๐Ÿ’ฌ 35    ๐Ÿ“Œ 155
Preview
Davis Summer Population Genomics Program Want to learn population genetics? Please fill out this form to indicate your potential interest in a 2-week intensive online summer population genetics course taught by Jeffrey Ross-Ibarra and Graham...

Fun news! @gcbias.bsky.social and I are teaching a 2-week online population genetics workshop this summer to raise money for the Center for Population Biology at UC Davis. We're trying to gauge interest -- please fill this out if you might be interested! And please share broadly!

09.02.2026 18:24 โ€” ๐Ÿ‘ 136    ๐Ÿ” 168    ๐Ÿ’ฌ 7    ๐Ÿ“Œ 5
Preview
Co-occurrence is associated with horizontal gene transfer across marine bacteria independent of phylogeny Abstract. Understanding the drivers and consequences of horizontal gene transfer (HGT) is a key goal of microbial evolution research. Although co-occurring

Now out & nicely formatted in @isme-microbes.bsky.social

A big analysis of ocean genomes & metagenomes co-led by former postdocs, now PIs, @gmdouglas.bsky.social & @cyanophage.bsky.social along with co-PIs @lbobay.bsky.social & Samuel Chaffron.

A few highlights... ๐Ÿงต (1/n)

doi.org/10.1093/isme...

09.02.2026 20:31 โ€” ๐Ÿ‘ 72    ๐Ÿ” 33    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
Three people, two women and a man, smile and converse outside a modern building. Text reads: Oxford Biology Mentorship Programme. To support strong senior independent research fellowship applications. Apply by 25 March.

Three people, two women and a man, smile and converse outside a modern building. Text reads: Oxford Biology Mentorship Programme. To support strong senior independent research fellowship applications. Apply by 25 March.

Applications for our Fellowship Mentorship Programme are open!

The programme supports promising early career researchers to submit fellowship applications and move towards research independence. Find out more โฌ‡๏ธ
https://bit.ly/BioIRF

09.02.2026 10:15 โ€” ๐Ÿ‘ 6    ๐Ÿ” 10    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Preview
The Klebsiella Seminar Series - 2026 Please use this form to register for the 2026 Klebsiella Seminar Series. To submit an abstract for consideration as a 15 minute research talk, please fill out the abstract submission portion at the en...

Kind reminder: There is one week left to apply for a talk for the Klebsiella Seminar Series!
Send your abstract by February 16th!
& Register for free in the link below:
forms.gle/LhJu11WQN6Yy...

#MicroSky #UTISky #AMRSky #Agenda

09.02.2026 05:36 โ€” ๐Ÿ‘ 0    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 1
Preview
Bidirectional promoters in Escherichia coli: regulatory rules and implications for gene expression noise Abstract. In prokaryotes, bidirectional promoters are pseudo-symmetrical DNA sequences that stimulate divergent transcription. Ubiquitous, and far more lik

@ewarman.bsky.social has followed up on her discovery of bidirectional promoters in bacteria by defining their basic rules for regulation and links to gene expression noise...

academic.oup.com/nar/article/...

06.02.2026 15:35 โ€” ๐Ÿ‘ 21    ๐Ÿ” 13    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

The run wins again, another datapoint supporting my aversion to adulting ;) some progress made on the paper though.

08.02.2026 00:10 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

run in 1 degree weather, clean my apartment, or finish the manuscript?

07.02.2026 08:29 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

A 28-year evolution experiment on Burkholderia pseudomallei survival in nutrient-depleted sterile water https://www.biorxiv.org/content/10.64898/2026.02.06.704356v1

07.02.2026 06:31 โ€” ๐Ÿ‘ 8    ๐Ÿ” 4    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 1
Repeatability of gene expression evolution in experimental environmental adaptation - Nature Communications Experimental evolution enables evaluation of the relative roles of chance and necessity in evolution. This study compiles transcriptomic data from experimental evolution of a prokaryotic and five euka...

Here, the authors compile transcriptomic data from experimental evolution of a prokaryotic and five eukaryotic species in 22 environments to reveal that gene expression evolution is often repeatable and deterministic.

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

06.02.2026 11:42 โ€” ๐Ÿ‘ 10    ๐Ÿ” 5    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Post image

Context-dependent adaptation in structured environments

Proc Biol Sci by @yuyakarita.bsky.social et al from @paulbrainey.bsky.social

royalsocietypublishing.org/rspb/article...

04.02.2026 11:45 โ€” ๐Ÿ‘ 13    ๐Ÿ” 3    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Captain Haddock looking very frazzled, saying, โ€œWhat a week, huh?โ€
Tintin leans into the frame and says, โ€œCaptain, itโ€™s Wednesday.โ€
Snowy aka Milou is very excited about the drink he has found.

Captain Haddock looking very frazzled, saying, โ€œWhat a week, huh?โ€ Tintin leans into the frame and says, โ€œCaptain, itโ€™s Wednesday.โ€ Snowy aka Milou is very excited about the drink he has found.

04.02.2026 11:26 โ€” ๐Ÿ‘ 355    ๐Ÿ” 144    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 6
Post image

postdoc position in tuebingen:

04.02.2026 11:11 โ€” ๐Ÿ‘ 0    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Post image

New in JB: Bange, Dornes, et al. review the molecular basis for flagellar patterns and numbers across bacterial species.
journals.asm.org/doi/10.1128/...
@asm.org #JBacteriology

03.02.2026 21:33 โ€” ๐Ÿ‘ 5    ๐Ÿ” 6    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 1
Post image

We are hiring postdocs :)

04.02.2026 00:28 โ€” ๐Ÿ‘ 5    ๐Ÿ” 6    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
2026 Microbial Stress Response Conference GRC The 2026 Gordon Research Conference on Microbial Stress Response will be held in South Hadley, Massachusetts. Apply today to reserve your spot.

Join us at the 2026 GRC Microbial Stress Response to be held on July 19th-24th at Mount Holyoke College!! Here is the link for more information: www.grc.org/microbial-st...

03.02.2026 11:20 โ€” ๐Ÿ‘ 6    ๐Ÿ” 4    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Preview
RNA-triggered Cas12a3 cleaves tRNA tails to execute bacterial immunity - Nature Cas12a3 nucleases constitute a distinct clade of type V CRISPRโ€“Cas bacterial immune systems that preferentially cleave the 3โ€ฒ tails of tRNAs after recognition of target RNA to induce growth arres...

Our paper is out! Hiding in plain sight among Cas12a nucleases, Cas12a3 cleaves not its RNA target but the 3โ€ฒ ends of tRNA. Huge thanks to all who made this possible, especially the Beisel lab, Biao & Dirk for the structure, & @sebastianglatt.bsky.social for all things tRNA. doi.org/10.1038/s415...

07.01.2026 16:15 โ€” ๐Ÿ‘ 37    ๐Ÿ” 21    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
Video thumbnail
02.02.2026 02:42 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Preview
A web-based atlas for exploring post-transcriptional regulation in the archaeon Sulfolobus acidocaldarius | mSystems Postโ€‘transcriptional regulation is a key control layer in gene expression. Yet, resources integrating antisense RNAs (asRNAs), RNA processing sites, and RNA-protein interactions are scarce for archaea...

A web-based atlas for exploring post-transcriptional regulation in the archaeon Sulfolobus acidocaldarius
#microbiology #archaea #MicroSky #ArchaeaSky
@asm.org
journals.asm.org/doi/10.1128/...

01.02.2026 19:09 โ€” ๐Ÿ‘ 6    ๐Ÿ” 4    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
Methylome and transcriptome mapping reveal miniscule DNA methyltransferase regulons in Salmonella enterica serovar Typhimurium DNA methylation is a regulator of bacterial gene expression and adaptation, influencing traits such as virulence and antimicrobial resistance. The dynamic nature of DNA methylation enables rapid responses to changing environments and is a source of heterogeneity in bacterial populations. However, condition-dependent DNA methylation and consequences for transcriptional output remain poorly understood. We applied Oxford Nanopore sequencing to profile DNA methylation during exponential growth and late stationary phase of Salmonella enterica serovar Typhimurium and integrated these data with transcriptomic analyses. We found that each DNA methyltransferase (MTases) exhibits a distinct activity pattern across growth stages, which could not be explained by transcriptional levels of the corresponding enzymes. As predicted, DNA methylation patterns determined by regulatory MTases were dynamic across growth conditions whereas methylation patterns of MTases belonging to R-M systems were comparatively stable. We identified growth stageโ€“specific methylation patterns for all studied MTases and correlations between methylation states and gene expression patterns. Together, these findings chart DNA methylation networks in the epigenetic regulation of bacterial physiology. Author summary DNA methylation in bacteria is best known for its role protecting DNA from endonucleases, such as restrictionโ€“modification, and coordinating chromosome replication and mutation repair, yet DNA methylation also regulates gene expression and cell physiology. Previous studies primarily examined bacterial DNA methylation at single time points or in limited genomic regions, providing only a partial view of its biological significance. In this study, we used Oxford Nanopore sequencing to compare DNA methylation patterns in Salmonella enterica during exponential growth and late stationary phase then integrated these data with corresponding gene expression profiles. We identified numerous methylation target motifs, all of which demonstrated constitutively methylated or unmethylated regions. This systems-level analysis clarifies the role of DNA methylation in bacterial adaptation across growth stages and demonstrates the utility of Oxford Nanopore sequencing for genome-wide methylation profiling. ### Competing Interest Statement The authors have declared no competing interest. European Union, https://ror.org/019w4f821, Marie Skłodowska-Curie grant agreement No. 896441 University of Regina Fir cluster of the Digital Research Alliance of Canada

Always good to start the year with a new preprint. We charted DNA methylation in Salmonella enterica: www.biorxiv.org/content/10.64898/2026.01.27.702048v1.

30.01.2026 11:53 โ€” ๐Ÿ‘ 5    ๐Ÿ” 3    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

@campy-bara is following 20 prominent accounts