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Posts by Benjamin Coltman

GTDB - Genome Taxonomy Database The Genome Taxonomy Database (GTDB) is an initiative to establish a standardised microbial taxonomy based on genome phylogeny.

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.

6 days ago 50 29 0 5
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What if universities used undergraduates to make biological reagents? No, I don’t mean melting the students. I mean training people in biomanufacturing to reduce research costs. Thread + diagram, hopefully thought-provoking

2 weeks ago 6 3 2 0
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Es geht los! 🚀
Folge 1 unseres Podcasts „Die Welt der Mikroben“. Mit Florian Freistetter reisen wir zu den Anfängen: Von römischen Sümpfen bis zur Mundhygiene des 17. Jhd.

Link im ersten Kommentar 👇 @fwf-at.bsky.social

3 weeks ago 21 8 2 0
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Excited to share that our podcast 'Die Welt der Mikroben - The World of Microbes' launches tomorrow, March 27. Florian Freistetter (DE) & Rebecca Gallo + CoE Key Researchers (EN) explore the hidden world of microbes with MicroPlanet. New episodes every 2 weeks! #Microsky #Archaeasky #scicomm

3 weeks ago 8 5 0 0
Marker gene phylogeny of ammonia oxidizing archaea genomes in the GlobDB annotated with their prevailing environmental categories

Marker gene phylogeny of ammonia oxidizing archaea genomes in the GlobDB annotated with their prevailing environmental categories

We now provide environmental metadata for the GlobDB genomes!
🖥️🧬🦠

More info here:
globdb.org/news

🧵

3 weeks ago 55 22 2 2
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Slow and steady!

After 15 years of continuous cultivation, we finally isolated the first psychrotolerant ammonia-oxidizing archaeon (AOA) from an arctic environment, Ca. Nitrosocosmicus articus!

Our new article in Frontiers in Microbiology: doi.org/10.3389/fmic...

1 month ago 27 11 3 4
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BBC Radio 4 - In Our Time, Archaea How a discovery in the 1970s changed the theory of the origin of complex life on earth.

Available now on BBC radio "In our time: Archaea" with Christa Schleper, Thorsten Allers and Buzz Baum discussing the evolution of complex cells with Misha Glenny.

www.bbc.co.uk/programmes/m...

1 month ago 7 5 0 1
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Characterising complex metabolic responses in an engineered, cross-feeding microbial co-culture using quantitative proteomics Microbial communities play a key role in biogeochemical transformations in a wide range of ecosystems, but they also hold significant potential to enh…

Engineering synthetic co-cultures to be "needy" leads to unexpected consequences. We barely scratch the surface here, but get some interesting insights #biotech
🧪 www.sciencedirect.com/science/arti...

1 month ago 7 2 0 1
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Interested in microbial proteins and their diversity? 🖥️🧬🦠

We have recently released the Amino Acid Sequence Toolkit (AASTK). AASTK is designed to work with the GlobDB to create and work with datasets of protein sequences.

AASTK currently consists of 4 tools:
- CASM
- PASR
- CUGO
- Meta

1/

1 month ago 26 7 2 0

Very excited about this, especially to work more closely with @patrickschimmel.bsky.social !
We will look at the establishment of gut and soil microbiomes following interventions through the lens of metabolic fluxes, and explore if there are shared principles of community assembly!

2 months ago 2 0 0 0
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MRC instructs grant review boards to slash funding rates - Research Professional News Boards asked to recommend just three applications for funding, as BBSRC also suspends calls

Both MRC and BBSRC responsive modes now withdrawn until further notice. Existing applications unlikely to succeed (late 2025 round expecting 1-5% success rate).

Listen, I get that UKRI wants to pivot. But killing both at once is devastating.

Let's hope at least one opens by summer... #AcademicSky

2 months ago 28 30 4 7
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We just released #anvio v9, "eunice" 🎉

This version represents over 2,000 changes in the codebase since v8, increasing the total number of programs in the anvi'o ecosystem to 176.

Read the release notes:

github.com/merenlab/anv...

Visit our up-to-date web page:

anvio.org

3 months ago 72 34 2 3

With the release of anvi'o v9, the 300k+ contigs databases available for download on the GlobDB website are now compatible with both the development version and the latest stable release (v9) of anvi'o.

More info:
globdb.org/news

Thanks #anvio team!
🖥️🧬🦠

2 months ago 10 6 0 0
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We're excited to release metaTraits.embl.de! 🦠 Interactively explore 140+ 𝗺𝗶𝗰𝗿𝗼𝗯𝗶𝗮𝗹 𝗽𝗵𝗲𝗻𝗼𝘁𝘆𝗽𝗶𝗰 𝘁𝗿𝗮𝗶𝘁𝘀, harmonized & integrated from culture-derived collections 🔬 & genome-based predictions 🧬 for >2M MAGs & genomes.

Publication at NAR: doi.org/10.1093/nar/... @narjournal.bsky.social #microsky 🧵 1/8

4 months ago 38 29 1 0
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microntology: a lightweight, data-driven controlled vocabulary to describe Earth's microbial habitats Summary. We introduce microntology v1.0, a pragmatic controlled vocabulary of 148 terms to describe microbial habitats and lifestyles, and provide manually curated microntology annotations for >300k m...

We just released a @biorxivpreprint.bsky.social describing the *microntology*, a lightweight controlled vocabulary that we have been using for a while to tag metagenomes with contextual data.

Study by @fullam.bsky.social @vishnuprasoodanan.bsky.social et al:

1/

www.biorxiv.org/content/10.6...

3 months ago 20 13 1 0

Merry X-SMASH!
My first first author paper is out on bioRxiv! 🖥

We present epsSMASH, a comprehensive and high-throughput tool for predicting exopolysaccharide (exoPS) biosynthetic gene clusters (BGCs) in bacterial genomes 🦠🧬🧫
1/8

3 months ago 58 21 3 3
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New @fwf-at.bsky.social CoE Microplanet study introduces GlobDB globdb.org, a comprehensive database integrating 14 genomic catalogues providing consistent taxonomy for microbial species.
academic.oup.com/bioinformati...

4 months ago 11 5 2 0
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Real-time simultaneous monitoring of multiple analytes in bacterial cultures | Applied and Environmental Microbiology Real-time monitoring of metabolites in bacterial cultures is crucial for advancing our understanding of microbial physiology, metabolic fluxes, and dynamic responses to environmental changes. This capability enables researchers to capture transient metabolic states that are often missed in endpoint measurements. The use of engineered periplasmic binding proteins as biosensors for this real-time metabolite monitoring represents a groundbreaking approach. By leveraging the natural specificity and high affinity of PBPs for small molecules, these biosensors can be engineered to detect a wide range of metabolites with exceptional sensitivity and temporal resolution. The integration of PBP-based biosensors into microbial research not only enhances our ability to study real-time metabolism but also provides a versatile tool for optimizing industrial bioprocesses and exploring bacterial infections and complex microbial ecosystems

Pretty cool! Engineered periplasmic binding proteins+fluorophore sensors (for sugars+AAs) are used to report real-time extracellular metabolite dynamics in E. coli + many others species after 24h in plate readers, showing hierarchical substrate use.
journals.asm.org/doi/full/10....

4 months ago 6 6 0 0
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The Microflora Danica atlas of Danish environmental microbiomes - Nature Microflora Danica—an atlas of Danish environmental microbiomes—reveals that although human-disturbed habitats have high alpha diversity, species reoccur, revealing hidden homogeneity.

Microflora Danica: What can you learn from collecting and sequencing 10,000+ samples from a single country? Check out our new paper in @nature.com to find out. Incredible work led by Caitlin Singleton, Thomas B. N. Jensen, and Mads Albertsen from @aau.dk. 🦠🧫🧬
www.nature.com/articles/s41...

4 months ago 68 31 0 2

Most microbial diversity is uncultured. metaTraits bridges the gap by combining culture-based trait data (@bacdive.bsky.social, @bvbrc.bsky.social, JGI/GOLD/IMG) with predictions for MAGs and genomes (SPIRE, proGenomes). All trait summaries come with provenance and links to their original data. 4/8

4 months ago 5 2 1 0
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Induced endosymbiosis between a fungus and bacterium reveals a shift from antagonism to commensalism - Nature Communications Gassler et al. implant a free-living bacterium into fungal cells to study early steps in the establishment of an endosymbiosis. They observe vertical transmission of the bacteria despite initial host ...

Induced endosymbiosis between a fungus and bacterium reveals a shift from antagonism to commensalism

@natcomms.nature.com by Thomas Gassler et al from Julia Vorholt

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

Ralstonia pickettii in the fungus Rhizopus microsporus

#Endofungal

4 months ago 16 9 1 0

This nice summary by @michiwagner4.bsky.social makes it easy to fit my post in a few characters.
Amplicon sequencing is still an affordable and quick way to get good insights into who lives in your samples. Our new primers make sure your vision is 20/20.
Try em, and contact me if you have questions!

4 months ago 21 5 0 1
A cloning strategy as depicted in the OpenCloning website

A cloning strategy as depicted in the OpenCloning website

#OpenCloning is a an Open Source alternative to SnapGene/Benchling that supports automation and integration with other software

✅ Free
🔓 Open Source
🧬 More cloning methods than SnapGene
🤖 Can be automated with python
👨‍🔬 Built by a researcher — for researchers!

👉 Check it out at opencloning.org

4 months ago 104 65 3 7
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🧫 Just out in Bioinformatics Advances: “GlobDB: A comprehensive species-dereplicated microbial genome resource.” 

Explore the full study: https://doi.org/10.1093/bioadv/vbaf280

4 months ago 12 9 2 0
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Nice, thanks!

4 months ago 0 0 0 0
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Modular in vivo engineering of the reductive methylaspartate cycles for synthetic CO2 fixation Biological carbon fixation is currently limited to seven naturally occurring pathways. Synthetic carbon fixation pathways have the potential to surpass aerobic natural pathways in efficiency, but none...

Newest preprint from our lab: a new family of promising synthetic CO2 fixation cycles that may outcompete the Calvin cycle and that Vittorio Rainaldi realized to a great extent in E. coli! Up to 11 heterologous enzymes in a cascade supporting CO2 fixation & growth! www.biorxiv.org/content/10.1...

4 months ago 22 12 1 2
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GlobDB: a comprehensive species-dereplicated microbial genome resource AbstractMotivation. Over the past years, substantial numbers of microbial species’ genomes have been deposited outside of conventional INSDC databases.Resu

Our paper describing the GlobDB is now published in @bioinfoadv.bsky.social
doi.org/10.1093/bioa...

The GlobDB is the largest species dereplicated genome database currently available, containing 306,260 species representatives.
More information on globdb.org 1/5
🖥️🧬🦠

5 months ago 85 44 2 6

GlobDB is a great resource and is frequently of use in my research!

Developed and maintained by @daanspeth.bsky.social, I was glad to contribute in a small way. Have a look at Daan’s thread to find out more and let us know how you use it! >>

5 months ago 5 2 0 0
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🚨New preprint out!
We present a foundational genomic resource of human gut microbiome viruses. It delivers high-quality, deeply curated data spanning taxonomy, predicted hosts, structures, and functions, providing a reference for gut virome research. (1/8)
www.biorxiv.org/content/10.1...

5 months ago 90 47 4 2
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Last chance to turn it off.

On Monday, November 3rd, Microsoft will start using your LinkedIn data for AI training. And remember, you're opted in by default.

To toggle it off 👉 Account - Settings & Privacy > Data privacy > Data for Generative AI Improvement.

5 months ago 3866 3583 89 209