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Axel Pahl

@apahl.bsky.social
138 followers 65 following 55 posts

Med. Chemist turned Data Scientist at Fraunhofer ITMP, Hamburg. Cell Painting. Linux enthusiast. Programming in Python & Rust (, Nim, Go, I just can't decide), general geek. Judo black belt.

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Reposted by Axel Pahl
Fraunhofer ITMP @fraunhoferitmp.bsky.social · 03/09/2026
Antibiotikaresistenzen zählen zu den größten Herausforderungen unserer Zeit. Das Projekt #ANTARES setzt auf #KI, um neue Wirkstoffe schneller zu finden. Mit 1,18 Mio. € BMFTR-Förderung forschen @helmholtzhzi.bsky.social, Enamine Germany und wir an neuen Therapieoptionen gegen resistente Erreger.
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Randall Munroe @xkcd.com · 21/05/2026
182.8 Meters xkcd.com/3248/
Comic. [Person with bun gesturing at informational sign as she talks to person with ponytail, another person, person with shoulder-length hair, and a person with a white hat] PERSON WITH BUN: In some places, the bay is more than 182.8 meters deep. [thought bubble above another person’s head] PERSON: *”More than”?* Why would they use that for such a precise... Aha! 100 fathoms! [caption] My hobby: reverse-engineering original units
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Amanda Moehring @flybehaviour.bsky.social · 13/02/2026
Ooooh. Cool new paper on origins of life. A simple 45-nucleotide RNA molecule that can perfectly copy itself. www.science.org/doi/10.1126/...
science.org
A small polymerase ribozyme that can synthesize itself and its complementary strand
The emergence of a chemical system capable of self-replication and evolution is a critical event in the origin of life. RNA polymerase ribozymes can replicate RNA, but their large size and structural ...
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Reposted by Axel Pahl
Fraunhofer-Gesellschaft @fraunhofer.bsky.social · 16/01/2026
🔬Ein mobiles Gaschromatographie-Sensorsystem soll künftig helfen, Lebensmittelbetrug vor Ort zu erkennen. Drei Fraunhofer-Institute entwickeln das leicht bedienbare Gerät, das auch Analytik-Laien eine schnelle Bewertung ermöglicht. Mehr dazu: 🖇️ s.fhg.de/qxnv #Qualitätscheck #compliance
Oben links Logo Fraunhofer in weiß; Bild eines tragbaren Messsystems in Form eines Koffers verbunden mit einer Art Flasche; Text unten: "Lebensmittelbetrug schnell erkennen. Neue Messtechnik für Produktschutz und Qualitätskontrolle"Links: Bild eines mit Olivenöl gefüllten Glaskolbens. Rechts Text: Im Fraunhofer  PREPARE-Projekt  PUMMEL entwickeln  Forschende ein System, mit dem sich falsch etikettierte Lebensmittel vor Ort identifizieren lassen. Etwa gefälschtes Olivenöl.
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MPI Dortmund @mpi-dortmund.bsky.social · 08/01/2026
paper alert🚨 Monovalent pseudo-natural products supercharge degradation of IDO1 by its native E3 KLHDC3 - Published by the groups of Herbert Waldmann @waldido.bsky.social , Slava Ziegler and @georgwinter.bsky.social @cemm.oeaw.ac.at in @nature.com Chemistry www.nature.com/articles/s41...
nature.com
Monovalent pseudo-natural products supercharge degradation of IDO1 by its native E3 KLHDC3 - Nature Chemistry
In targeted protein degradation, a degrader molecule brings a neosubstrate protein proximal to a hijacked E3 ligase for its ubiquitination. Here, pseudo-natural products derived from (−)-myrtanol—iDeg...
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Reposted by Axel Pahl
Cédric Bouysset @cedric.bouysset.net · 21/12/2025
Mols2grid 2.2.0 is out with full Marimo support 🎅 Huge thanks to @n283t.bsky.social for the contribution! See this for an example linking mols2grid selections with marimo's UI table: github.com/cbouy/mols2g... N283T: x.com/tbsng_ktkm0923
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Randall Munroe @xkcd.com · 16/12/2025
Apples xkcd.com/3180/
Comic. [Two people one one side of a pile of seven apples, next to person with long hair next to five apples.] PERSON: Okay, with my seven apples added to your five, we have… let’s se… twelve apples! PERSON 2 [with hands raised]: Incredible! Perfect agreement with the theory! [caption] Experimental Mathematicians
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Greg Landrum @greglandrum.bsky.social · 26/09/2025
This week's #RDKit blog post shows how to create simple protein--ligand interaction diagrams. I think there's potential to take this a bit further... greglandrum.github.io/rdkit-blog/p...
greglandrum.github.io
Drawing simple protein–ligand interaction diagrams with the RDKit – RDKit blog
Quick, but useful
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James Harland @jmharland.bsky.social · 17/09/2025
“We only have a few minutes left so please keep your questions brief.” “Thank you for your talk, before I ask my convoluted question and get to the point, please allow me to tell you my name, title, position, rank and academic biography…”
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Brittany Trang @brittanytrang.com · 23/05/2025
OpenAI just updated ChatGPT to be able to use RDKit, a cheminformatics Python package. OpenAI's president says this makes ChatGPT "useful for scientific work across health, biology, and chemistry," but it is hilariously still not good at chemistry (🧵) #chemsky #AI ⚗️🧪🖥️
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Luca Laraia @lucalaraia.bsky.social · 24/05/2025
I will soon be posting a postdoc position in protein biochemistry/biophyics! Interested candidates are welcome to reach out at luclar@kemi.dtu.dk. Experience in protein expression, purification, and assay development is a must. Structural biology would be great! Please RT :)
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Maarten Dobbelaere @maartendobbelaere.bsky.social · 08/03/2025
Rxn-INSIGHT also has some functions for molecules, but many more for reactions. Functional groups and rings are handled separately here: github.com/mrodobbe/Rxn...
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Randall Munroe @xkcd.com · 26/02/2025
RNA xkcd.com/3056
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Daniel Probst @skepteis.bsky.social · 15/02/2025
I will be playing in the O2 Arena! Well, I won't be playing, I'll be talking... and no, it's not the one in London but the one in Amsterdam... But if you're around, it would be cool to meet you there. 😊 www.dtls.nl/data-represe...
BioSB HotTopics Symposium flyer on "Data representation of small molecules and their application"

25-03-2025 from 12:30 to 17:00 in the O2 Arena at VU Amsterdam
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Keith Hornberger @krhornberger.bsky.social · 31/01/2025
If you work in drug discovery and you read one thing this weekend, make it this exceptional J Med Chem editorial. Hits on almost every blessed thing I’ve tweetorialized over the last several years. Quantitation and Error Measurements in Dose–Response Curves
pubs.acs.org
Quantitation and Error Measurements in Dose–Response Curves
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Marwin Segler @marwinsegler.bsky.social · 16/01/2025
#compchem
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Axel Pahl @apahl.bsky.social · 22/12/2024
Sunday morning, Hamburg Fischmarkt.
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Fraunhofer-Gesellschaft @fraunhofer.bsky.social · 09/12/2024
Multiresistente Keime: Die Waffen gegen gefährliche Bakterien werden zunehmend stumpf, immer häufiger können lebensbedrohliche Infektionen nicht mehr therapiert werden. Ersatz gibt es bisher kaum. Im neuen Fraunhofer-Magazin stellen wir neue Chancen aus der angewandten Forschung vor: s.fhg.de/P3pj
Magazin-Cover
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Matthias Nau @matthiasnau.bsky.social · 30/10/2024
Want to make beautiful scientific figures? Easy! The NIH released a library of 2000+ free scientific illustrations called *BioArt*. Check it out! bioart.niaid.nih.gov #AcademicSky #PsychSciSky 🧠🟦 🧪
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Axel Pahl @apahl.bsky.social · 03/11/2024
After almost 10 years on consecutive temporary contracts, it was time for me to leave the MPI in Dortmund. Thank you to everyone for the really good time.
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Tobias Lenz @biotobi.bsky.social · 29/10/2024
Fantastic resource for bio icons: NIH Bioart Source Build figures, presentations, and illustrations with 2,000+ science and medical art visuals. This collection of high-quality, scientifically accurate vectors, #icons, and brushes is freely available within the public domain. bioart.niaid.nih.gov
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GK @georgekarag.bsky.social · 27/10/2024
It's *that* Sunday...
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Anne Carpenter @drannecarpenter.bsky.social · 03/09/2024
Register! Broad Institute Machine Learning for Drug Discovery broad.io/mldd Oct 31/Nov 1 In-person, or free virtual attendance! Speakers: Jennifer Listgarten James Collins Jakob Uszkoreit Jian Tang Mila Antonia Mey Jakub Tomczak Henry van den Bedem Nicolas Stransky
broad.io
Machine Learning in Drug Discovery Symposium
The 2024 Machine Learning in Drug Discovery Symposium will feature a half-day workshop on October 31, 2024 and a full day of talks on November 1, 2024. Learn more about the symposium and workshop on t...
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Nessa Carson @supersciencegrl.co.uk · 02/09/2024
Hey friends! Just letting you know about the full hybrid conference "AI in Chemistry". In-person registration (Cambridge, UK) closes tonight, and virtual registration will be open a while longer. It's a *great* conference ⚗ www.rscbmcs.org/events/aiche...
rscbmcs.org
7th AI in Chemistry - RSC BMCS
We organise international conferences that ensure the cross fertilisation of ideas amongst experts in our field
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GDCh Division of Biochemistry @gdchbiochem.bsky.social · 01/08/2024
Join us and Herbert Waldmann, Dorothea Fiedler, Christian Hackenberger, Stephan Sieber, Tamir Gonen, Ralf Jungmann, Andrea Rentmeister, Ronald Micura, John Yates, Kerstin Goepfrich and Michael Jewett at the @GDChBiochem.bsky.social Conference (30.9.-02.10.24). veranstaltungen.gdch.de/microsite/in...
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Axel Pahl @apahl.bsky.social · 05/08/2024
LOL. This is really hilarious. And so close to the truth, it hurts. github-roast.pages.dev (via @denschub@schub.social)
github-roast.pages.dev
GitHub Profile Roast 🔥🔥🔥
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Axel Pahl @apahl.bsky.social · 18/07/2024
Cluster small molecules as Minimum Spanning Tree and visualize the results in an interactive, selectable scatter plot with structure tooltips: github.com/apahl/cluste...
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Get To Know Nature @gettoknownature.bsky.social · 06/07/2024
Please excuse a non-nature post. This is happening now to bring awareness to Long Covid. I've been watching for half an hour and already learned a lot. Dianna Cowern is an incredible science Youtuber who's been in bed with Long Covid for almost two years. Hosted by Simone Giertz & others. 🧪
youtube.com
Physics Girl LIVE with long Covid
Dianna is Live streaming a day in her life as someone suffering from long COVID and ME/CFS. The purpose of the Livestream is to raise money and awareness for...
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Axel Pahl @apahl.bsky.social · 01/07/2024
We had discussed internally some time ago, that the fact, that all SELFIES encode for valid structures might be detrimental to machine learning. A Nature machine intelligence article now seems to confirm this: www.nature.com/articles/s42... #ChemInformatics
nature.com
Invalid SMILES are beneficial rather than detrimental to chemical language models - Nature Machine Intelligence
Generative models for chemical structures are often trained to create output in the common SMILES notation. Michael Skinnider shows that training models with the goal of avoiding the generation of inc...
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Axel Pahl @apahl.bsky.social · 19/06/2024
Very interesting job opening at the MPI of Molecular Physiology in Dortmund in the field of data science on morphological cell imaging. This is the position for my succession at the COMAS: www.mpi-dortmund.mpg.de/news/jobs/da... #CellPainting #AcademicJobs
mpi-dortmund.mpg.de
Data Scientist
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Axel Pahl @apahl.bsky.social · 08/05/2024
This is really driving me crazy: My boss does not want me to leave, I don't want to leave, but still I have to leave at the end of the year, because of the #WissenschaftsZeitvertragsGesetz. So today I reviewed the upcoming job posting for my successor, who should have exactly my qualifications.
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Axel Pahl @apahl.bsky.social · 02/05/2024
Can you find activity in dark chemical matter? - Yes you can. With the #CellPainting assay. pubs.acs.org/doi/10.1021/...
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Krieg und Freitag @kriegundfreitag.bsky.social · 21/04/2024
Cartoon. Person 1 sagt: "Ich hasse alle! Außer dich!" Person 2 antwortet: "Wir kennen uns doch kaum." Person 1 erwidert: "Das wird der Grund sein."
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Derek Lowe @dereklowe.bsky.social · 15/04/2024
As someone who had the glassblower make me a multiliter liquid-liquid continuous extractor in grad school, I approve!
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Axel Pahl @apahl.bsky.social · 30/03/2024
The perks of living on the country side.
Easter bonfire
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Axel Pahl @apahl.bsky.social · 12/03/2024
Delighted to announce that we not only successfully published a project together with #Sartorius assessing the activity of extractables from single-use applications in the #CellPainting assay, but this is also the first joint paper of my wife and me. doi.org/10.1038/s415...
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Dr. Lucky Tran @luckytran.com · 24/02/2024
Moon Lander is all of us!
Moon Lander Is Lying on Its Side but Still Functional, Officials Say
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Axel Pahl @apahl.bsky.social · 13/02/2024
If you ever wanted to trace back the steps you executed in the terminal, including the output, this is a very cool tool to use: #asciinema. It is now being rewritten in #RustLang (#RIIR): asciinema.org
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Avogadro Project @avogadro.cc · 11/02/2024
We're back with a new release! 🎉 Highlights include improved force field optimizations, faster surfaces & orbitals, vibration spectra plots, and new tool icons, plus dozens of bug fixes, features, and new script plugins discuss.avogadro.cc/t/avogadro-1...
Molecular depiction of caffeine including solvent accessible surfaceCalculated vibrational spectra of caffeine
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Justin J.J. van der Hooft @jjjvanderhooft.bsky.social · 05/02/2024
Proud of David Meijer who created CineMol to draw small molecule 3D models in vector format! 😎 The resulting drawings can be easily adapted further chemrxiv.org/engage/chemr... Try it here: moltools.bioinformatics.nl/cinemol 😎 #cheminformatics #CompMetabolomics - work with @marnixmedema.bsky.social
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Axel Pahl @apahl.bsky.social · 04/02/2024
Dear colleagues, my temporary contract here at the MPI is ending this year, and for reasons of german work regulations (Wissenschaftszeitvertragsgesetz, a german word of typical length ;-) ), it can not be extended. So I am looking for new opportunities, preferably in Germany.
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Axel Pahl @apahl.bsky.social · 31/01/2024
I really love Voila (github.com/voila-dashbo...) to quickly turn Jupyter Notebooks into interactive web apps that I can share with my boss for exploration. #MachineLearning #DataScience
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Axel Pahl @apahl.bsky.social · 13/01/2024
Weekend fun.
An old red tractor in front of an old barn in the woods.An old red tractor picking up straw in a barn.
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Axel Pahl @apahl.bsky.social · 13/01/2024
There is finally a reactive Notebook for Python: marimo.io This looks really great.
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Stephan Hacker @stephanhacker2.bsky.social · 17/11/2023
Very interesting talk by Slava Ziegler at #EFMCISCB2023. She talked about her group's work on using cell painting to narrow down the mechanism of action and cellular targets of bioactive compounds. www.cell.com/cell-chemica...
cell.com
Morphological profiling by means of the Cell Painting assay enables identification of tubulin-target...
Akbarzadeh et al. employ the Cell Painting assay to identify small-molecule modulators of microtubules in compound collections. They detect unanticipated tubulin-targeting activity for several refere...
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Greg Landrum @greglandrum.bsky.social · 15/10/2023
I just added the videos from the first afternoon of the #RDKitUGM2023 to the UGM 2023 playlist on YouTube: www.youtube.com/playlist?lis... This set of videos includes the "Ask the community" session, something new that we tried this year.
youtube.com
2023 RDKit UGM
Recordings from the 2023 RDKit UGM in Mainz
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