Timo Saratto
timosaratto.bsky.social
Timo Saratto
@timosaratto.bsky.social
Software engineering and microbial genomics 🇫🇮
Pinned
An updated AllTheBacteria preprint is out, with the remarkable addition of antimicrobial peptide discovery!

I also got to contribute by making a web UI for the dataset – check it out at
www.allthebacteria.org/browse
🧬🖥️
Reposted by Timo Saratto
Mykrobe2 released! mykrobe2.readthedocs.io

It's a Go rewrite (AI-assisted) of mykrobe. Has same usage and essentially identical output, but more than twice as fast (mykrobe2.readthedocs.io/en/latest/my...).

GUI desktop app is back for Windows, Mac, and Linux. Command line simpler to install
Mykrobe2
mykrobe2.readthedocs.io
September 9, 2026 at 9:44 AM
Reposted by Timo Saratto
The Tree of Life Web Project is back online!
tolweb.org
Thanks to Travis Wheeler (@wheelerlab.org), Danny Mandel, and Andrew Lenards, the original programmers for ToLWeb, for retooling the code to work on a modern OS! It is hard for me to believe it lives again.
Tree of Life Web Project
tolweb.org
September 8, 2026 at 6:23 PM
Reposted by Timo Saratto
Riboseek is a fast RNA/DNA search. More sensitive than nhmmer at 250x speed. Structure-aware realignment produces MSAs approaching rMSA quality. Plus 1.7M precomputed RNA MSAs, and an API to search your own
📄 www.biorxiv.org/content/10.6...
💾 github.com/steineggerla...
🌐 search.foldseek.com/riboseek
August 1, 2026 at 6:02 PM
Reposted by Timo Saratto
The headlines are still covering the cyclosporiasis outbreak from lettuce, but let's talk about a different summer, long ago.

The headlines in Bavaria would have called it "summer diarrhea" & it was killing babies.

Enter our hero, Professor Theodor Escherich of the Julius Hospital, Würzburg.
August 1, 2026 at 4:41 PM
Reposted by Timo Saratto
Removing coordinate-defined regions from phylogenomic matrices is simple in principle, but editing errors can alter the matrix. NEXCISION provides exact, validated excision from transposed NEXUS matrices

🔗 github.com/RhysWhite/ne...

Feedback welcome #Bioinformatics

🖥️🧬💻
#AcademicSky
#MicroSky
🧪🧫🦠
July 30, 2026 at 3:15 AM
Reposted by Timo Saratto
Institut Pasteur researchers describe LIN codes in PLOS Biology: a standardized numerical system for identifying bacterial strains from genome data, now used in BIGSdb-Pasteur and Pathogenwatch for outbreak surveillance. @sylvainbrisse.bsky.social
↘️ doi.org/10.1371/journal.pbio.3003781
Life Identification Numbers: A strain nomenclature approach to aid epidemiological surveillance of bacterial pathogens
Unified bacterial strain taxonomies are needed for coherent communication of findings in microbiological research. This Essay provides an overview of a novel bacterial strain taxonomy and describes ho...
doi.org
July 23, 2026 at 8:53 AM
Reposted by Timo Saratto
Check our preprint and this global effort "AllTheBacteria" to uniformly process all public bacterial and archaeal genomes and make them accessible, searchable and AI-ready.
July 20, 2026 at 11:11 AM
Reposted by Timo Saratto
New updates to AllTheBacteria - some super cool results and an amazing resource for the community
July 20, 2026 at 1:26 PM
Reposted by Timo Saratto
Significant update to the AllTheBacteria paper, including discovering new antimicrobial peptides and testing in vitro and vivo. This has grown into a fantastic collaboration!
July 20, 2026 at 1:05 PM
An updated AllTheBacteria preprint is out, with the remarkable addition of antimicrobial peptide discovery!

I also got to contribute by making a web UI for the dataset – check it out at
www.allthebacteria.org/browse
🧬🖥️
July 20, 2026 at 2:31 PM
Reposted by Timo Saratto
Biology has plenty of data—the challenge is making it usable. AllTheBacteria transforms 2.44 million public bacterial and archaeal genomes into an open, uniformly processed, searchable, AI-ready resource.

www.biorxiv.org/content/10.1...
AllTheBacteria: a community resource empowers biology and discovers novel peptide antibiotics
Public microbial genomes encode an immense record of biological diversity, evolution and molecular function, but much of this information remains difficult to reuse because raw sequencing data are not...
www.biorxiv.org
July 20, 2026 at 11:06 AM
Reposted by Timo Saratto
For the next 24h, drop any infectious disease and/or vaccine-related questions in response to this post, and I will do my best to answer them. Answers are for information only, NOT medical advice.
#AskAnIDDoc June 2026 edition.
Muppet Doctor Gives Thumbs Up
ALT: Muppet Doctor Gives Thumbs Up
static.klipy.com
June 27, 2026 at 12:45 PM
Reposted by Timo Saratto
1/4. Excited to share the first preprint from my PhD at @binfutrecht.bsky.social and @uti-revisited.bsky.social 🐥. In this work, we explored the urinary tract microbiome composition (urobiome) by combining data from multiple metagenomic sequencing studies 💛🦠. www.biorxiv.org/content/10.6...
Cross-study metagenomics analysis reveals distinct microbial signatures of urinary tract infections
Background Urinary tract infections (UTIs) represent a major public health concern, increasingly complicated by rising antibiotic resistance, diminishing treatment efficacy, and increasing prevalence ...
www.biorxiv.org
June 22, 2026 at 12:20 PM
Reposted by Timo Saratto
We released our latest metagenomics preprint. I’m really excited about this study.

The unofficial title is ‘conquer the dark matter, volume 1’
1/
www.medrxiv.org/content/10.6...
A genome-resolved view of the wastewater RNA virome
Sequencing-based wastewater surveillance is emerging as an important tool in pathogen-agnostic threat detection, potentially enabling early identification before capture through clinical surveillance ...
www.medrxiv.org
June 14, 2026 at 6:55 PM
Reposted by Timo Saratto
Targeted #metagenomics isn't a new problem and is solvable at the bench. In 2013, this group elegantly used Single Chain antibodies to enrich species of interest.

This makes enrichment an antigen-selection problem (trivial), where only n=50 cells required for 99% coverage

doi.org/10.1186/1471...
Using phage display selected antibodies to dissect microbiomes for complete de novo genome sequencing of low abundance microbes - BMC Microbiology
Background Single cell genomics has revolutionized microbial sequencing, but complete coverage of genomes in complex microbiomes is imperfect due to enormous variation in organismal abundance and amplification bias. Empirical methods that complement rapidly improving bioinformatic tools will improve characterization of microbiomes and facilitate better genome coverage for low abundance microbes. Methods We describe a new approach to sequencing individual species from microbiomes that combines antibody phage display against intact bacteria with fluorescence activated cell sorting (FACS). Single chain (scFv) antibodies are selected using phage display against a bacteria or microbial community, resulting in species-specific antibodies that can be used in FACS for relative quantification of an organism in a community, as well as enrichment or depletion prior to genome sequencing. Results We selected antibodies against Lactobacillus acidophilus and demonstrate a FACS-based approach for identification and enrichment of the organism from both laboratory-cultured and commercially derived bacterial mixtures. The ability to selectively enrich for L. acidophilus when it is present at a very low abundance (<0.2%) leads to complete (>99.8%) de novo genome coverage whereas the standard single-cell sequencing approach is incomplete (<68%). We show that specific antibodies can be selected against L. acidophilus when the monoculture is used as antigen as well as when a community of 10 closely related species is used demonstrating that in principal antibodies can be generated against individual organisms within microbial communities. Conclusions The approach presented here demonstrates that phage-selected antibodies against bacteria enable identification, enrichment of rare species, and depletion of abundant organisms making it tractable to virtually any microbe or microbial community. Combining antibody specificity with FACS provides a new approach for characterizing and manipulating microbial communities prior to genome sequencing.
doi.org
June 14, 2026 at 6:52 AM
Reposted by Timo Saratto
New work on using transformers (using gene order) for tasks in genomic epidemiology:
www.biorxiv.org/content/10.6...

We trained BART models (w/ extended context windows) on E.coli and S.pneumo from AllTheBacteria and tested if the model could find new strains, insertions (blaCTX-M) and co-selection
May 6, 2026 at 8:35 AM
Reposted by Timo Saratto
Excited to finally share our new preprint on bioRxiv describing Verticall (github.com/rrwick/Verti...), a robust & efficient tool for building recombination-free bacterial phylogenies. Huge thanks to @rrwick.bsky.social & @katholt.bsky.social for this incredible work! www.biorxiv.org/content/10.6...
www.biorxiv.org
April 27, 2026 at 4:32 AM
Reposted by Timo Saratto
Excited to share the first preprint from the lab! We show that ApeA defends against RNA phage infection by cleaving the phage genome:

www.biorxiv.org/content/10.6...
www.biorxiv.org
March 21, 2026 at 5:18 PM
Reposted by Timo Saratto
You can now view a tree of 2,399,238 bacterial genomes we made from AllTheBacteria (on the great Taxonium):
taxonium.org/atb
That's a big tree!

(unless you're used to SC2 trees)
Taxonium
Interactive exploration of large phylogenetic trees
taxonium.org
March 17, 2026 at 9:10 AM
Reposted by Timo Saratto
Our new preprint on quantifying microbial sample diversity/complexity in a way that accounts for both metagenome architecture and taxonomic composition is now live on bioRxiv: www.biorxiv.org/content/10.6...

#metagenomics #bioinformatics #dataanalysis #graphdata
www.biorxiv.org
March 13, 2026 at 6:28 PM
Reposted by Timo Saratto
We’ve published a wee pilot study assessing the utility of metagenomics & full-length 16S sequencing for the detection of seasonal pathogens (and AMR) in our local urban recreational swimming hot-spot

Check it out if you’re into that stuff :)

www.microbiologyresearch.org/content/jour...
Assessing sequencing-based pathogen surveillance of a recreational swimming area in Oslo, Norway
Sequencing-based surveillance can enable rapid and sensitive detection of environmental pathogens. The Oslofjord inlet is relatively narrow and is exposed to substantial human activity, including occa...
www.microbiologyresearch.org
March 2, 2026 at 8:54 AM
Reposted by Timo Saratto
Can't wait to release a 10-year-old birthday version for SeqKit!

- 10 years
- 2 papers, 3500 citations
- 20 contributors
- 40 subcommands
- 880 commits
- 500 issues
- 685.5K Bioconda total downloads

Thank you all, dear contributors and users!
I'll keep maintaining it.

github.com/shenwei356/s...
Release SeqKit v2.13.0 (10-year-old birthday version) · shenwei356/seqkit
Changelog SeqKit is 10 years old! SeqKit v2.13.0 - 2026-02-28 seqkit: add support for reading and writing LZ4 compression format. new command: seqkit sample2: improved seqkit sample by @stahiga....
github.com
February 27, 2026 at 1:25 PM