Loukas Theodosiou

Loukas Theodosiou

@bioinformatician.bsky.social

Senior Bioinformatics scientist at @mpipz_cologne. Previously postdoc at the @RaineyLab in @MPI_EvolBio. Data Science, Bioinformatics, Machine Learning, R, Rcpp, Python

406 Followers 120 Following 44 Posts Joined Aug 2023
12 hours ago
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How to Design Antibodies
A step-by-step guide to making de novo binders. www.asimov.press/p/antibody-...

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1 day ago

Nice to see this published at @PLoS Comp Bio. Big improvements after peer review and important input from @gsherloc.bsky.social! Hopefully, this tool will be helpful for those interested in using barcodes for detecting new beneficial mutations.

journals.plos.org/ploscompbiol...

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1 day ago
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ggtree_layouts GitHub Gist: instantly share code, notes, and snippets.

code in here
gist.github.com/loukesio/dd3...

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1 day ago

Derived layouts build on top of those by flipping, rotating, or transforming coordinates — one extra line turns a rectangular tree into a dendrogram or an inward circular plot.

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1 day ago

Base layouts (rectangular, slanted, circular, fan, daylight…) control the overall shape of the tree.

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1 day ago
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#ggtree has a relatively steep learning curve. But after looking at a few Python alternatives eg., toytree, ETE, Bio.Phylo it's hard to match its layout versatility. 21 tree variants with just a few lines of code.
#rstats #phylogenetics #bioinformatics

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1 day ago

I would just love to have a simpler way to update RStudio less frequently on macOS, Windows, and Linux, or ideally have it happen with a single click. Indeed we can discuss it over an email.

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1 day ago

Thank you, Dirk. My statement should in no way diminish the love for R or the outstanding work the community is doing I use it every day across multiple computers.

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1 day ago

Definitely not the biggest problem in the world right now, but constantly installing new versions of RStudio, R and R packages is getting old fast. 😤 #RStats #DataScience

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4 days ago
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Chatomics! — The Bioinformatics Newsletter Why Subscribe?✅ Curated by Tommy Tang, a Director of Bioinformatics with 100K+ followers across LinkedIn, X, and YouTube✅ No fluff—just deep insights and working code examples✅ Trusted by grad students, postdocs, and biotech professionals✅ 100% free

I hope you've found this post helpful.

Follow me for more.

Subscribe to my FREE newsletter chatomics to learn bioinformatics divingintogeneticsandgenomics.ck.page/profile

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2 weeks ago
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‘Unbelievably dangerous’: experts sound alarm after ChatGPT Health fails to recognise medical emergencies Study finds ChatGPT Health did not recommend a hospital visit when medically necessary in more than half of cases

Study finds ChatGPT Health did not recommend a hospital visit when medically necessary in more than half of cases. www.theguardian.com/technology/2...

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1 month ago
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Genomic Data Visualisation with Python 15-17 June 2026

Want to master genomics data visualization with Python?

Join our online course with @bioinformatician.bsky.social (15–17 June ) and learn to create publication-quality plots—from volcano and Manhattan plots to phylogenetic trees—using top Python libraries.
www.physalia-courses.org/courses-work...

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2 months ago

5/ How standard tools behave depends on depth.
DESeq2, edgeR, limma-voom with size-factor or TMM normalization handle moderate depth differences fine. But artifacts explode when depth is very low or tightly confounded with condition.

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2 months ago
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GitHub - crazyhottommy/ROSE2: ROSE: RANK ORDERING OF SUPER-ENHANCERS ROSE: RANK ORDERING OF SUPER-ENHANCERS. Contribute to crazyhottommy/ROSE2 development by creating an account on GitHub.

1. phantompeakqualtools still works github.com/kundajelab/...

2. I optimized ROSE for super-enhancer identification. now it finishes within 10mins! It was 12 hours! github.com/crazyhottom... now install via pip!

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1 month ago
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TSniffer: unbiased de novo identification of RNA editing sites and quantification of editing activity in RNA-seq data link.springer.com/article/10....

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1 month ago
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Flexible use of a multi-purpose tool by a cow Osuna-Mascaró and Auersperg report flexible, multipurpose tool use in a cow, expanding the known range of mammalian tool users and underscoring overlooked cognitive capacities in livestock.

Austria's newly famous tool-using cow - maybe it should have been a co-author? "Flexible use of a multi-purpose tool by a cow" - www.cell.com/current-biol...

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1 month ago
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Nature Genetics: Engineering AI co-scientists for statistical genetics applications www.nature.com/articles/s41... 🧬💻🧪 read free: rdcu.be/eZ2wR

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2 months ago
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The changing roles of Escherichia coli Nature Microbiology - Richard Lenski traces the legacy of Escherichia coli and how science is evolving to use this model organism in new ways.

"The changing roles of Escherichia coli" -- a short essay by yours truly.

rdcu.be/eVtXT

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2 months ago

All you want for christmas is.... transposon mutagenesis!

Our new work at @cultivarium.bsky.social screening lots of transposon vectors in lots of bacteria, from @charliegilbert.bsky.social and team.

Transposon and promoter modular parts available on Addgene (pooled library will be there soon too)

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2 months ago

A special shout-out to the amazing people who have shaped my approach to slide design and teaching, particularly Cédric Scherer, whose work continues to inspire how I think about making complex concepts accessible and visually engaging.

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2 months ago

🔄 Stay tuned, we're constantly updating the materials and preparing for new adventures in genomics data visualization. 𝗠𝗼𝗿𝗲 𝗶𝗱𝗲𝗮𝘀, 𝗰𝗼𝘂𝗿𝘀𝗲𝘀, 𝗰𝘂𝘀𝘁𝗼𝗺 𝗽𝗮𝗰𝗸𝗮𝗴𝗲𝘀, 𝗮𝗻𝗱 𝗮 𝗯𝗼𝗼𝗸 𝗼𝗻 𝗴𝗲𝗻𝗼𝗺𝗶𝗰𝘀 𝗱𝗮𝘁𝗮 𝘃𝗶𝘀𝘂𝗮𝗹𝗶𝘇𝗮𝘁𝗶𝗼𝗻 𝗮𝗿𝗲 𝗰𝗼𝗺𝗶𝗻𝗴.

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2 months ago

𝗢𝘂𝗿 𝗔𝗻𝗻𝘂𝗮𝗹 𝗚𝗲𝗻𝗼𝗺𝗶𝗰𝘀 𝗩𝗶𝘀𝘂𝗮𝗹𝗶𝘇𝗮𝘁𝗶𝗼𝗻 𝗖𝗼𝘂𝗿𝘀𝗲 𝘄𝗶𝘁𝗵 Physalia courses 𝗵𝗮𝘀 𝘄𝗿𝗮𝗽𝗽𝗲𝗱 𝘂𝗽! All course materials are available: 👉 lnkd.in/gTnfFewM You'll find all the code, slides, and resources I used to prepare the course from basic ggplot2 concepts to advanced genomic visualizations using R.

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2 months ago
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Our final course of the year is a wrap! 🎉

Huge thanks to @bioinformatician.bsky.social and to all the participants who joined us this week to level up their #Genomics #DataViz skills.

We can’t wait to see your beautiful figures making their way into papers, posters, and presentations!

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3 months ago
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💻 Discover all the latest features of Nextflow on Dec 11, , including the new Plugin Registry, workflow inputs & outputs, and static types.

Plus, don't miss the opportunity to ask the creator of Nextflow (@paoloditommaso.bsky.social) anything! 🌟

🌟 Register now: hubs.la/Q03W12B90

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4 months ago
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Genomic Data Visualisation with R 15-17 Dember 2025

Join our online course "Genomic Data Visualisation with R" on Dec 15-17. Learn to create impactful visuals for genomics. More info and registration: https://www.physalia-courses.org/courses-workshops/genomic-data-viz/ #course

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5 months ago

Human-mediated land-use and climate change occur simultaneously, but how do they interact to shape adaptive dynamics? Super excited to share the first paper from the Kreiner lab, led by postdoc extraordinaire @rpineau.bsky.social

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5 months ago

Gavras at this best!

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5 months ago
Britain, voting intention, %

Labour finding a monkey's paw in early 2020: "We may be 20 points behind now but we'll halve it in five years..."

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7 months ago
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Diverse microbial communities assemble on both recalcitrant and labile carbon sources Microbial community assembly is shaped by the nature of available resources, with labile carbon sources such as glucose often expected to support low diversity due to rapid growth and competitive excl...

A new preprint! Data from a huge experiment by @prczhaoyansong.bsky.social show that similar microbial communities diverge depending on whether the carbon source is glucose or its polymer, cellulose. Diversity is comparable, but biomass, functions and taxonomy differ:
www.biorxiv.org/content/10.1...

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7 months ago
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Genomic Data Visualisation with R 10-12 November 2025

🎨 Turn your genomic data into stunning visuals – with R!

Join us online for our course:🧬 Genomic Data Visualisation with R

📅 10–12 November | 🕐 1–6 PM (Berlin time)

🧑‍🍳 Instructor: @bioinformatician.bsky.social

www.physalia-courses.org/courses-work...

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