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Sebastian Schmidt

@tsbschm.bsky.social
661 followers 639 following 198 posts

Lecturer in Microbiome & Health at @apcmicrobiomeirel.bsky.social & @ucc.ie Alumnus @borklab.bsky.social Microbiome, microbial ecology & metagenomics.

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Reposted by Sebastian Schmidt
bigdatabiology.bsky.social @bigdatabiology.bsky.social · 16/09/2026
SemiBin 2.5.0 is out 🎉 concatenate_fasta() can now preserve full FASTA headers (e.g. circularity flags) when merging samples /ht Jim Downie (github.com/prototaxites) for the suggestion Agents make releases easy now: expect more frequent ones in the future github.com/BigDataBiolo...
github.com
GitHub - BigDataBiology/SemiBin: SemiBin: metagenomics binning with self-supervised deep learning
SemiBin: metagenomics binning with self-supervised deep learning - BigDataBiology/SemiBin
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Sebastian Schmidt @tsbschm.bsky.social · 11/09/2026
On Sep 11 2001 I was on a school trip: one week in the Netherlands, by the beach close to The Hague. That day was orienteering day: our teachers drove us out to some heather, “here’s a map and compass, see you tonight then.” So off we went: bunch of 10th graders in the middle of nowhere.
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Reposted by Sebastian Schmidt
Cameron Thrash @jcamthrash.bsky.social · 04/09/2026
A global genomic survey of prokaryotic carbon fixation reveals an oxygen-tolerant rTCA cycle in the surface ocean www.biorxiv.org/content/10.6... #jcampubs 🌊
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Reposted by Sebastian Schmidt
Bork Group at EMBL Heidelberg @borklab.bsky.social · 29/07/2026
Led by Lucas Ustick, who has a longer write-up here: www.linkedin.com/posts/lucas-... Preprint: www.biorxiv.org/content/10.6... (5/5)
linkedin.com
Planetary structure and drivers of diazotroph communities reveal key reservoirs of nitrogen-fixation potential | Lucas Ustick
I am very excited to share our preprint on NFixPlanet, a resource and planet wide analysis of diazotrophy. Releasing this preprint feels bittersweet, as it is my first manuscript since Peer’s passing...
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Reposted by Sebastian Schmidt
Bork Group at EMBL Heidelberg @borklab.bsky.social · 29/07/2026
New preprint from the lab! "Planetary structure and drivers of diazotroph communities reveal key reservoirs of nitrogen-fixation potential" Nitrogen fixation is scattered right across the prokaryotic tree — but it's heterotrophs, not cyanobacteria, that dominate the potential. 🧵
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Sebastian Schmidt @tsbschm.bsky.social · 19/07/2026
Football won today.
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Sebastian Schmidt @tsbschm.bsky.social · 19/07/2026
Your German word of the day: Fremdscham
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Sebastian Schmidt @tsbschm.bsky.social · 18/07/2026
This is fun.
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Sebastian Schmidt @tsbschm.bsky.social · 14/07/2026
Spain played a great game by making sure that France played a shitty game. Foolproof strategy.
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Reposted by Sebastian Schmidt
W. Florian Fricke @wffricke.bsky.social · 08/07/2026
Is it not just “good” and “bad” bacteria but their absolute abundance, i.e, quantitative microbiome parameters (QMPs) that control the #microbiome’s effect on the host? Check out our new paper in @cp-cellreports.bsky.social: www.cell.com/cell-reports...
cell.com
Distinct compositional changes but shared quantitative microbiome and anti-inflammatory modulations by diet
Reported gut microbiome associations with diet and disease are frequently inconsistent between studies and interventions. Ruple et al. show that a high-fiber diet and time-restricted feeding induce si...
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Reposted by Sebastian Schmidt
Masaru Nobu @masarunobu.bsky.social · 23/06/2026
Parasitic bacteria feeding on their hosts’ RNA!? New cultures and Patescibacteriota/Minisyncoccota/CPR continue to surprise us… www.biorxiv.org/content/10.6...
biorxiv.org
A representative of a ubiquitous bacterial lineage parasitically feeds on host RNA
Cellular metabolism is widely understood as an integrated network of redox reactions, energy conservation, and biosynthetic pathways. Here we show that across diverse prokaryotic lineages, loss of red...
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Sebastian Schmidt @tsbschm.bsky.social · 22/06/2026
The UK is such a deeply unserious country.
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Reposted by Sebastian Schmidt
Jonas Schiller @jonas-bio.bsky.social · 10/06/2026
Our new paper „Variations in the latitudinal diversity gradients of the ocean microbiome“ was just published in @cp-cellhostmicrobe.bsky.social 🥳 We present a global analysis of prokaryotic #biodiversity in the surface and mesopelagic layers of the ocean 🦠🌊 www.cell.com/cell-host-mi...
cell.com
Variations in the latitudinal diversity gradients of the ocean microbiome
Eriksson et al. conduct a global marine microbiome diversity analysis and demonstrate how the surface ocean latitudinal diversity gradient is disproportionately shaped by a few species-rich taxa. Mask...
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Reposted by Sebastian Schmidt
APC Microbiome Ireland @apcmicrobiomeirel.bsky.social · 03/06/2026
A clearer way to describe microbial habitats helps researchers compare #microbiome data. A new paper in #𝐁𝐢𝐨𝐢𝐧𝐟𝐨𝐫𝐦𝐚𝐭𝐢𝐜𝐬 introduces microntology: 148 terms and curated annotations for 305,626 #metagenomic samples. @tsbschm.bsky.social @embl.org @vishnuprasoodanan.bsky.social 📰 buff.ly/FD1SYYJ
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Sebastian Schmidt @tsbschm.bsky.social · 28/05/2026
Our study describing `microntology` and annotations for >300k metagenomes is now online in Bioinformatics @academic.oup.com : academic.oup.com/bioinformati... Congratulations to @fullam.bsky.social @vishnuprasoodanan.bsky.social & @biocs.bsky.social ! See the thread below for more details.
academic.oup.com
microntology: a lightweight, data-driven controlled vocabulary to describe Earth’s microbial habitats
AbstractMotivation. Data-enabled studies of microbial ecology and evolution depend on high-quality descriptions of microbial habitats, based on curated and
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Sebastian Schmidt @tsbschm.bsky.social · 21/05/2026
Darwin approves.
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Reposted by Sebastian Schmidt
bigdatabiology.bsky.social @bigdatabiology.bsky.social · 13/05/2026
How well do ARG detection pipelines agree when applied to the same data? Spoiler: not very well. In our new preprint, we ran 10 pipelines on 270M microbial unigenes from GMGCv1. The same data can support conflicting biological conclusions! 🧵 www.biorxiv.org/content/10.6...
biorxiv.org
The elusive resistome: a global comparison reveals large discrepancies among detection pipelines
Identifying antibiotic resistance genes (ARGs) from metagenomic data is critical for studying antimicrobial resistance across microbial communities and pathogens. However, there is no standardized methodology for ARG annotation. Here, we compare ten commonly used ARG detection pipelines by analysing over 270 million prokaryotic genes from the Global Microbial Gene Catalogue across 13 distinct habitats. We observed up to a 45-fold difference in the number of reported ARGs, with a mean Jaccard index of only 16% between pipelines. Pipeline selection profoundly impacted downstream biological interpretations, with drastic changes to estimates of ARG relative abundance and richness, to the characterization of pan- and core-resistomes, and to the class-level composition of the inferred resistome. ARG detection pipelines make different, defensible trade-offs, and no single approach should be treated as authoritative. Therefore, users should justify and communicate choices carefully, as our analyses show that, taken uncritically, the same data can support conflicting biological and ecological interpretations. ### Competing Interest Statement The authors have declared no competing interest. National Health and Medical Research Council of Australia (NHMRC), 2031902 Australian Research Council (ARC), FT230100724 International Development Research Centre (IDRC), 109304-001 Deutsche Forschungsgemeinschaft (DFG), FO1279/6-1 Bundesministerium für Bildung und Forschung (BMBF), F01KI1909A, 01KI2404B Swedish Research Council (VR), 2024-06123, 2019-00299, 2023-01721 Knut and Alice Wallenberg Foundation, KAW 2020.0239 Swedish Foundation for Strategic Research, FFL21-0174
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Nature Microbiology @natmicrobiol.nature.com · 13/05/2026
Our May issue with a focus on technological advances in microbiology is out now! Read about 🌱defence evasion by plant pathogens 🦠E. coli capsule revival 💻multiomic microbiome integration 🐁chronic chikungunya infection 🦀 bacteria in cancer immunotherapy and much more: shorturl.at/Wtzkp #MicroSky
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Dr. Holly Walters @manigarm.bsky.social · 17/05/2026
I'm sorry, what? In writing my first monograph, I spent six weeks trying to track down a citation in TWO languages I didn't know. And good thing too, because the citation was wrong. That's scholarship. That's research. You know, the thing we're trained to do?!?
The reactions of some researchers on Twitter finally being held responsible for not having read the very paper they submitted are... something. Mainly, they don't think they should have to check every citation or make sure the data is real and accurate. Because it's too hard, I guess.
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Joerg Lau @joerglau.bsky.social · 13/05/2026
Hostage taker to hostages: This is your hostage crisis, too. Don’t just sit there waiting for me to negotiate, stand up and do something to get us all out of here!
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Reposted by Sebastian Schmidt
Luis Pedro Coelho @luispedrocoelho.bsky.social · 13/05/2026
More details to follow later, but this has been in the works for almost 6 years, so it is great to finally see it in preprint form: "The elusive resistome: a global comparison reveals large discrepancies among detection pipelines" www.biorxiv.org/content/10.6...
biorxiv.org
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Reposted by Sebastian Schmidt
APC Microbiome Ireland @apcmicrobiomeirel.bsky.social · 05/05/2026
Gut bacteria form #spores, but our lab models rarely match the real thing. A new review in @cp-trendsmicrobiol.bsky.social argues for developing model organisms from human gut spore‑formers. Current models miss key genetics & biology of Bacillota species common in people. 📰 buff.ly/ZWLKobR
We outline a path to develop novel gut commensal spore-formers as model organisms, which can provide a means to better understand gut sporulation processes and serve as a resource for therapeutic applications.
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Reposted by Sebastian Schmidt
Jonathan Eisen @phylogenomics.bsky.social · 30/04/2026
Reposting this from April 1, 2007 in honor of Craig Venter. I did this as an April Fool's joke - sharing it as a PDF. I got stressed when I found out Craig had seen it and knew it was by me. But he loved it and said it was OK to share it more widely. So then I posted it on the web.
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Reposted by Sebastian Schmidt
Theo Sanderson @theo.io · 23/04/2026
Indeed.. here is "generate the first page of a great Nature paper that will get lots of citations. It must be very novel."
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Sebastian Schmidt @tsbschm.bsky.social · 20/04/2026
GUNC pre-processed databases are now also on zenodo thanks to @fullam.bsky.social : zenodo.org/records/1963...
zenodo.org
GUNC Reference Database Files
GUNC Reference Database Files
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Sebastian Schmidt @tsbschm.bsky.social · 16/04/2026
This is bad. Personally, I maintain that if a study does not release data, it should be considered not on the scientific record and can therefore be ignored. To restrict, you need very strong (exceptional) reasons. Predictably, that's not a popular stance with many though.
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Reposted by Sebastian Schmidt
Bork Group at EMBL Heidelberg @borklab.bsky.social · 16/04/2026
Due to some IT problems, the Bork group homepage and various services such as SPIRE and Metalog are unfortunately going to be unavailable for a couple of days. We're sorry for that and hope that the outage can soon be resolved!
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Sebastian Schmidt @tsbschm.bsky.social · 15/04/2026
Bioinformaticians all over the world:
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Reposted by Sebastian Schmidt
ace-gtdb.bsky.social @ace-gtdb.bsky.social · 15/04/2026
GTDB release 11 based on RefSeq 232 (R11-RS232) is live at gtdb.ecogenomic.org. This release covers 901,341 genomes (23% increase) and has 199,923 species clusters (39% increase). Release notes at: forum.gtdb.ecogenomic.org/t/announcing.... Release statistics at: gtdb.ecogenomic.org/stats/r232.
gtdb.ecogenomic.org
GTDB - Genome Taxonomy Database
The Genome Taxonomy Database (GTDB) is an initiative to establish a standardised microbial taxonomy based on genome phylogeny.
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Sebastian Schmidt @tsbschm.bsky.social · 15/04/2026
@fullam.bsky.social has given the SPIRE website a bit of an overhaul: improved pages, nice new options to navigate, improved search, streamlined genome, study and sample pages, tidied up Downloads page, etc. Go check it out: spire.embl.de
spire.embl.de
SPIRE
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Sebastian Schmidt @tsbschm.bsky.social · 14/04/2026
This simulation-cum-benchmark study on MAG making by @tkorem.bsky.social & team looks really interesting. Loads of plots and results to work through! www.biorxiv.org/content/10.6...
biorxiv.org
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Sebastian Schmidt @tsbschm.bsky.social · 03/04/2026
Our work on 'hidden diversity' in unbinned contigs is now published in @natmicrobiol.nature.com : www.nature.com/articles/s41... See the linked threads for more details!
nature.com
Unbinned contigs expand known diversity in the global microbiome - Nature Microbiology
Re-analysis of over 92,000 metagenomes reveals hundreds of thousands of previously undescribed Bacterial and Archaeal clades hidden in plain sight.
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Reposted by Sebastian Schmidt
APC Microbiome Ireland @apcmicrobiomeirel.bsky.social · 02/04/2026
A new paper in 𝐂𝐞𝐥𝐥 presents MicrobeAtlas, a harmonised resource built from more than 2 million microbiome samples. It reveals recurring community patterns, geographic preferences and broad trends across microbial ecosystems. Congrats to @tsbschm.bsky.social #Microbiome #microsky 📰 buff.ly/PsNS9ML
MicrobeAtlas unifies more than two million microbiome samples in a single resource, harmonized to facilitate discoveries across technologies.
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Sebastian Schmidt @tsbschm.bsky.social · 26/03/2026
Wait I think I've seen this movie. Just don't let Ewan McGregor get anywhere near it... www.nature.com/articles/d41...
nature.com
Antimatter has been transported for the first time ever — in the back of CERN’s truck
Physicists have succeeded for the first time in transporting the most expensive and most volatile substance on Earth: antimatter.
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Sebastian Schmidt @tsbschm.bsky.social · 26/03/2026
They're welcome to using my code because then future Copilot will do incredibly stupid things.
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bigdatabiology.bsky.social @bigdatabiology.bsky.social · 25/03/2026
Urban soils are a small part of the world and lack the glamour of the wilderness or the economic importance of agriculture, but as most people live in cities, they are very important Our latest preprint using long-read metagenomics reveals massive hidden diversity and function in city soils 🧵
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Ben J Woodcroft @benjwoodcroft.bsky.social · 23/03/2026
New paper in mSystems! 🧵 - how much of your metagenome is actually bacterial/archaeal DNA? For many samples, nobody knows. We built SingleM prokaryotic_fraction (SPF) to answer this, then ran it on >100,000 public metagenomes. 🧬🖥️🦠 Here's what we found 👇 doi.org/10.1128/msystems.01062-25
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Martin Steinegger 🇺🇦 @martinsteinegger.bsky.social · 17/03/2026
AlphaFold database has entered the era of complexes. Together with NVIDIA, DeepMind and EBI, we use ColabFold, OpenFold and MMseqs2-GPU to predict ~31 million complexes (homo & hetro-dimers) resulting in 1.8 million high-quality predictions 📄 research.nvidia.com/labs/dbr/ass... 🌐 alphafold.ebi.ac.uk
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Sebastian Schmidt @tsbschm.bsky.social · 13/03/2026
@fullam.bsky.social has pushed a new #GUNC release, v1.1.0: github.com/grp-bork/gun... It fixes some bugs, updates some underlying databases and brings new features (e.g. you can now BYODB – bring your own database). GUNC v1.1.0 is also live on #bioconda .
github.com
Release v1.1.0 · grp-bork/gunc
Summary ^^^^^^^ This release adds support for two new reference databases (ProGenomes 3, GTDB r214) and a custom database option. A new gunc check subcommand validates your environment before submi...
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Sebastian Schmidt @tsbschm.bsky.social · 13/03/2026
@fullam.bsky.social has pushed a new #GUNC release, v1.1.0: github.com/grp-bork/gun... It fixes some bugs, updates some underlying databases and brings new features (e.g. you can now BYODB – bring your own database). GUNC v1.1.0 is also live on #bioconda .
github.com
Release v1.1.0 · grp-bork/gunc
Summary ^^^^^^^ This release adds support for two new reference databases (ProGenomes 3, GTDB r214) and a custom database option. A new gunc check subcommand validates your environment before submi...
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APC Microbiome Ireland @apcmicrobiomeirel.bsky.social · 12/03/2026
A new study in @nature.com reveals how changes in gut microbes during ageing can disrupt communication between the gut and brain, contributing to cognitive decline. Huge congrats to APC collaborators Adrián Cortés-Martín and Colin Hill Read the paper: buff.ly/EYAjYgE #Microbiome #BrainHealth
Proposed signalling pathway of the aged microbiome impairing cognition through increased MCFA production leading to peripheral inflammation, vagal impairment, and cognitive deficits.
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EMBL @embl.org · 03/03/2026
Congratulations, Lisa Maier and Stephen Cusack! The two EMBL alumni have received the 2026 John Kendrew and Lennart Philipson awards for their outstanding contributions to host–microbiome research and structure-guided drug development, respectively. Learn more: www.embl.org/news/awards-...
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Sebastian Schmidt @tsbschm.bsky.social · 02/03/2026
No, your "AI platform for scientific profiles" got this one quite wrong I'm afraid. Wouldn't say no to "227+" publications, but I draw the line at being called an expert in Diarrhea.
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Sebastian Schmidt @tsbschm.bsky.social · 25/02/2026
The Microbe Atlas database paper is *finally* published! Out in @cellpress.bsky.social today: www.sciencedirect.com/science/arti...
sciencedirect.com
The MicrobeAtlas database: Global trends and insights into Earth’s microbial ecosystems
Environmental DNA sequencing has revolutionized our understanding of microbial diversity and ecology. Microbiomes have now been sequenced across the e…
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Lukas Malfertheiner @lukasmalf.bsky.social · 25/02/2026
MicrobeAtlas is now published in Cell. 🌐🌎🦠 Explore the paper and resource to see what large-scale microbiome data reveal about global ecological patterns: www.cell.com/cell/fulltex... For a concrete application, see our recent work on “Community conservatism”: www.nature.com/articles/s41...
cell.com
The MicrobeAtlas database: Global trends and insights into Earth’s microbial ecosystems
MicrobeAtlas (www.microbeatlas.org) is an integrated, reference-based resource for truly planet-wide microbiomics, analyzing hundreds of thousands of microbial lineages across diverse environments, co...
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Sebastian Schmidt @tsbschm.bsky.social · 23/02/2026
Has anyone been able to figure out who that "Companion AI" company behind this Einstein Canvas completion bot is? They don't really seem to have an online footprint at all, no legal address on the website, nothing.
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Sebastian Schmidt @tsbschm.bsky.social · 19/02/2026
As a fervent Discworld fan, this one hits hard.
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Sebastian Schmidt @tsbschm.bsky.social · 19/02/2026
This graph gives me nightmares (but in a good way)
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Sebastian Schmidt @tsbschm.bsky.social · 10/02/2026
me: trust me, there's so much cool stuff we can to with SPIRE data! half the ppl I say that to: nah, it's a nice resource, but I just don't see it. me: *gestures wildly at @chanyeong-kim.bsky.social & @podlesny.bsky.social 's new study now out in @cellpress.bsky.social *
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