Jarno Mäkelä
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jmakela.bsky.social
Jarno Mäkelä
@jmakela.bsky.social
Assist. Prof. of Biophysics at Aalto Univ. | Temperature adaptation | Super-resolution microscopy | Single molecule tracking | #ERCStG

https://www.aalto.fi/en/department-of-neuroscience-and-biomedical-engineering/single-molecule-dynamics-in-cells
We have a tenure-track Assistant Professor position open at Aalto University in the area of Living State Physics with a focus on molecular and cellular biophysics, biophotonics, non-equilibrium phenomena, or biological engineering.
www.aalto.fi/en/open-posi...
Pls share! 🦠🔬🧪🧫
Assistant professor in Living state physics | Aalto University
Aalto University is where science and art meet technology and business. We shape a sustainable future by making research breakthroughs in and across our disciplines, sparking the game changers of tomorrow and creating novel solutions to major global challenges. Our community is made up of 120 nationalities, 14 000 students, 400 professors and close to 5000 faculty and staff working on our dynamic campus in Espoo, Greater Helsinki, Finland. Diversity is part of who we are, and we actively work to ensure our community’s diversity and inclusiveness. This is why we warmly encourage qualified candidates from all backgrounds to join our community.
www.aalto.fi
June 3, 2025 at 12:26 PM
Reposted by Jarno Mäkelä
Mapping of DNA-binding sites for 139 E. coli transcription factors

and

A neural network that predicts binding energy from DNA sequence and can be used to design new binding sites

#NeuralNetworks #MachineLearning #Genomics
Predictive biophysical neural network modeling of a compendium of in vivo transcription factor DNA binding profiles for Escherichia coli - Nature Communications
The authors describe BoltzNet, a neural network that learns the energy of transcription factor (TF)-DNA binding from genomic data and can be used to design new binding sites. They report the in vivo mapping and BoltzNet modeling of 139 E. coli TFs.
bit.ly
June 2, 2025 at 3:17 PM
Reposted by Jarno Mäkelä
How does your favorite species elongate? 🧵 "Phenotypic plasticity in bacterial elongation among closely related species". Happy to see this paper in print @natcomms.nature.com. Nice work by @mariedelaby.bsky.social, Liu Yang et al. See original 🧵, different colours, same data and conclusions.
June 2, 2025 at 3:54 PM
Reposted by Jarno Mäkelä
Here come our new palette of fluorescent dyes. The BD dyes endeaves to balance glowy brightness, robust photostability, and biocompatibility. Let's boost 4D dynamic super-resolution imaging!!!
www.nature.com/articles/s41...
@spirochrome.com
A palette of bridged bicycle-strengthened fluorophores - Nature Methods
A suite of bridged rhodamine dyes (BriDyes) offers excellent brightness, solubility, photostability, and tunable cell permeability along with resistance to photoblueing, making them exceptional all-pu...
www.nature.com
May 20, 2025 at 2:11 PM
How do internal promoters within operons shape bacterial stress responses? 🦠🧫
Contributing to a study with @andreribeirolbd.bsky.social, we show non-monotonic spatial expression patterns across operons in E. coli, B. subtilis, C. glutamicum, and H. pylori. www.science.org/doi/10.1126/...
Dynamics of bacterial operons during genome-wide stresses is influenced by premature terminations and internal promoters
Internal promoters in operons are critical in genome-wide stress responses, compensating for frequent premature RNAP falloffs.
www.science.org
May 19, 2025 at 12:25 PM
Reposted by Jarno Mäkelä
"E. coli nucleoid adopts a condensed, membrane-proximal configuration during rapid growth, an active role of transertion (coupled transcription, translation, and membrane insertion) in nucleoid organization" #microsky www.nature.com/articles/s41...
The nucleoid of rapidly growing Escherichia coli localizes close to the inner membrane and is organized by transcription, translation, and cell geometry - Nature Communications
The mechanisms underlying bacterial chromosome configuration are not fully understood. Here, Spahn et al. show that the Escherichia coli nucleoid adopts a condensed, membrane-proximal configuration du...
www.nature.com
May 6, 2025 at 11:29 AM
Reposted by Jarno Mäkelä
Our paper on the E. coli Min system in vivo with @physicsoflifelmu.bsky.social & Judy Kim (UCSD) has been published in Nature Physics today. Tight integration of experiment and theory, and physiology and biophysics. Incredible perseverance of our young students. rdcu.be/ekIpO
Robust and resource-optimal dynamic pattern formation of Min proteins in vivo
Nature Physics - Oscillatory Min protein patterns prevent abnormal bacterial cell division. Now it is shown that Min pattern formation is resource efficient and involves wavelength-invariant...
rdcu.be
May 5, 2025 at 2:53 PM
Reposted by Jarno Mäkelä
Striking new study from @archaeon-alex.bsky.social's lab just out in @science.org on multicellular development induced by compression in Archaea: www.science.org/doi/10.1126/...
Tissue-like multicellular development triggered by mechanical compression in archaea
The advent of clonal multicellularity is a critical evolutionary milestone, seen often in eukaryotes, rarely in bacteria, and only once in archaea. We show that uniaxial compression induces clonal mul...
www.science.org
April 3, 2025 at 6:24 PM
Reposted by Jarno Mäkelä
Please share with all your colleagues and friends! The more the merrier! 👇👇👇 more info on smlms.org!
April 7, 2025 at 7:21 PM
Reposted by Jarno Mäkelä
Bright and photostable yellow fluorescent proteins for extended imaging by François St-Pierre and team:
www.nature.com/articles/s41...
Bright and photostable yellow fluorescent proteins for extended imaging - Nature Communications
Yellow fluorescent proteins (YFPs) photobleach rapidly, restricting microscopy experiments. Here, the authors report mGold2s and mGold2t, YFPs that extend imaging durations up to 25 times longer than ...
www.nature.com
April 7, 2025 at 12:50 PM
Reposted by Jarno Mäkelä
Happy to share Asha Joseph and Inchara Adhikashreni's latest work from the lab, describing replisome speed variation in Caulobacter!

www.cell.com/current-biol...
Live tracking of replisomes reveals nutrient-dependent regulation of replication elongation rates in Caulobacter crescentus
Adhikashreni et al. use quantitative live-cell imaging to track cell-cycle dynamics in hundreds of individual bacteria. They observe nutrient-dependent regulation of replication elongation rates that ...
www.cell.com
April 4, 2025 at 3:57 PM
We are looking for a postdoc with microbiology background for #superresolution #singlemolecule #ERC tracking project. Apply by 27.4.2025. 🦠🔬🧫
Pls share!

www.aalto.fi/en/open-posi...
April 1, 2025 at 7:30 AM
Reposted by Jarno Mäkelä
New preprint from our lab!
Story started long ago that took many years in the making.

Great collaboration with @archaellum.bsky.social & @tunglejic.bsky.social groups.

Generously funded by BBSRC @ukri.org & @leverhulme.bsky.social

How do #archaea segregate their chromosome?
#microsky #archaeasky
Coupling chromosome organization to genome segregation in Archaea https://www.biorxiv.org/content/10.1101/2025.02.07.637068v1
February 9, 2025 at 10:51 AM
Congrats to Dr. Ana Andjelković from our and @richterlab.bsky.social lab for winning 2nd place in the Huygens Image Contest! 🎉🏆 Live STED imaging shows the cristae dynamics in a pathophysiological condition. svi.nl/imagecontest... #ScienceArt #ImageContest
January 31, 2025 at 1:57 PM
Reposted by Jarno Mäkelä
#Jobs We are looking for a new colleague! Tenure Track Assistant Professor in Biophysics in the domains of functional imaging and biophysics. More info here: www.wur.nl/en/vacancy/a...
Assistant Professor in Biophysics
www.wur.nl
January 29, 2025 at 10:01 AM
Reposted by Jarno Mäkelä
New preprint spear headed by the amazing #LorenzoOlivi: "The Escherichia coli replication initiator DnaA is titrated on the chromosome" using, among many other techniques, #sptPALM to determine growth dependent mobilities of DnaA diffusing in live cells. doi.org/10.1101/2024.10.07.617004 1/n
The Escherichia coli replication initiator DnaA is titrated on the chromosome
DNA replication initiation is orchestrated in many prokaryotes by the replication initiator DnaA. Two models for regulation of DnaA activity in Escherichia coli have been proposed: the switch between ...
doi.org
October 12, 2024 at 1:37 PM
Reposted by Jarno Mäkelä
I’m excited to share the first preprint from my postdoc at
@johan_elf_
lab together with Konrad Gras. 🧬🦠
biorxiv.org/content/10.1...
(1/14)
A dynamic 3D polymer model of the Escherichia coli chromosome driven by data from optical pooled screening
The DNA of bacterial cells is organized in a highly dynamic chromosome structure. To guarantee its propagation, the chromosome must replicate, segregate, and accommodate other biological processes lik...
biorxiv.org
November 12, 2024 at 1:34 PM
📢Job Alert!📢
We are looking for 2 PhD students with biophysics or computational biology background for #SuperResolution #singlemolecule tracking project.
More information: tinyurl.com/5b58y9kd
Apply by 31.10.24. 🦠🔬🧫
Pls share!
October 8, 2024 at 12:47 PM
Reposted by Jarno Mäkelä
Three-year postdoc available on anti-phage defense systems and phage biocontrol of phytopathogenic Ralstonia solanacearum at Helsinki (FIN) in collaboration with @hauryliuk.bsky.social and gemmaatkinson.bsky.social. Application deadline 29.2.2024. #phagesky #microsky jobs.helsinki.fi/job/Helsinki...
January 31, 2024 at 9:48 AM
Reposted by Jarno Mäkelä
This is a phenomenal piece of work from Andreas Wagner et al - A rugged yet easily navigable fitness landscape www.science.org/doi/10.1126/... #EvoSky #MicroSky
A rugged yet easily navigable fitness landscape
A high number of genetic fitness peaks does not impair adaptive evolution in a large empirical fitness landscape.
www.science.org
November 23, 2023 at 10:41 PM
Only two days to apply to ERC Research funded PhD and postdoc positions in our #TEMPADAPT project. 🦠🔬🧪More info: tinyurl.com/2zy95b5z tinyurl.com/3z6bja2x tinyurl.com/mpmwj5y4
November 21, 2023 at 2:38 PM