Alex Crits-Christoph
@acritschristoph.bsky.social
4.8K followers 1.6K following 1.7K posts
Computational microbiologist I like to post about: microbial genomics, microbial ecology, evolution, micro+plant biotechnology, climate, symbiosis, virology, ag, sci publishing and policy
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Reposted by Alex Crits-Christoph
alanmcn1.bsky.social
After being with the journal since its very inception, the time has come for me to step back from Microbial Genomics. This is a wonderful opportunity to have a leadership role in one of the leading journals for microbial genomics research

microbiologysociety.org/news/society...
<i>Microbial Genomics </i> Deputy Editor-in-Chief: Call for Expressions of interest
microbiologysociety.org
acritschristoph.bsky.social
Really interesting to hear your bindcraft challenges. "BindCraft appears to be much better at targeting certain binding pockets than others" common wisdom right now, but hope we can start to generalize it....

Dumb q: any evidence many of your 100+ binders *are* binding, just not inhibiting >LOD?
Reposted by Alex Crits-Christoph
maddyseale.bsky.social
Wonderful to see this beautiful image on the cover of Science this week highlighting a paper that uses high resolution imaging to show the spatial patterns of bacterial attraction to glutamine from roots.
Paper here: www.science.org/doi/10.1126/...
Perspective here: www.science.org/doi/10.1126/...
Reposted by Alex Crits-Christoph
3rdreviewer.bsky.social
The most important paper in evolutionary biology I'd never heard of:

1/

www.sciencedirect.com/science/arti...
Reposted by Alex Crits-Christoph
jeremymberg.bsky.social
I have been trying to get this published as an op-ed, but I am going to post it here since I think it is timely in light of the "consent" extortion events.

Deafening Quiet from the Scientific Establishment

jeremymberg.github.io/jeremyberg.g...

1/14
jeremymberg.github.io
Reposted by Alex Crits-Christoph
brockhurstlab.bsky.social
New preprint!

Ever wondered why only a fraction of genomes encode CRISPR immunity? 🧬 🦠

Turns out CRISPR is rarely beneficial against virulent phages, being most beneficial against those for which resistance mutations are rare!

An epic effort by Rosanna Wright

www.biorxiv.org/content/10.1...
Resistance mutation supply modulates the benefit of CRISPR immunity against virulent phages
Only a fraction of bacterial genomes encode CRISPR-Cas systems but the selective causes of this variation are unexplained. How naturally virulent bacteriophages (phages) select for CRISPR immunity has...
www.biorxiv.org
acritschristoph.bsky.social
The full language is even worse, asking to ban gene drives and microbes as well. Would exclude work like this on modified mosquitoes: www.npr.org/2024/01/26/1...

I love the IUCN, but also, they have no political authority, this is just a suggestion. Not a good one though!
acritschristoph.bsky.social
I don't think there's any great answer here but running all of the HMMs with HMMsearch and then doing the stats separately

maybe github.com/WrightonLabC..., although I haven't used it recently myself ...
Reposted by Alex Crits-Christoph
climatecabinet.org
Since Trump took office the U.S. has been backsliding on climate. New data shows we’re now falling far behind on cutting pollution to protect people’s health and our future.

But this isn’t inevitable. State and local leaders have real power to step up, act boldly, and keep climate progress alive.
Chart: Trump is slowing climate progress. Here’s how much.
After Trump’s budget law and regulatory rollbacks, the country’s carbon emissions are set to fall much slower than they would have under the Biden admin.
www.canarymedia.com
Reposted by Alex Crits-Christoph
enirenberg.bsky.social
This year's Nobel Prize in Physiology or Medicine was just announced:
www.nobelprize.org/prizes/medic...

This seems like a good opportunity for me to explain a bit about peripheral immune tolerance and where the prizewinners' work comes in 🧵
6 October 2025

The Nobel Assembly at Karolinska Institutet has decided to award the 2025 Nobel Prize in Physiology or Medicine to:

Mary E. Brunkow
Institute for Systems Biology,
Seattle, USA

Fred Ramsdell
Sonoma Biotherapeutics,
San Francisco, USA

Shimon Sakaguchi
Osaka University,
Osaka, Japan

“for their discoveries concerning peripheral immune tolerance”
Reposted by Alex Crits-Christoph
daumlab.bsky.social
Out in Science Advances: Our #cryoEM structure of HFTV1, a virus infecting the halophile #archaea. *First full atomic structure (containing all structural proteins) of any tailed virus!* Congrats and thanks to all co-authors and our fantastic collaborators! www.science.org/doi/10.1126/...
Cryo-EM resolves the structure of the archaeal dsDNA virus HFTV1 from head to tail
This structure of an archaeal tailed virus (arTV) provides detailed insights into arTV assembly and infection mechanisms.
www.science.org
acritschristoph.bsky.social
The Baltimore aquarium have termed this a "pistachio tide", a phrase that doesn't appear ever in the literature, and I cannot find if any characterization of these blooms have ever actually been published. This is by far the worst I've seen, but they do occur every few years.
Pistachio Tides: An Explainer
The science behind pistachio tides, a type of water quality event that's common in the Inner Harbor in Baltimore, Maryland.
aqua.org
acritschristoph.bsky.social
For a week now the harbor has been bright green and half of Baltimore has smelled like rotten eggs.

Most likely, this is a Chlorobi bloom!

Chlorobi are anoxygenic photosynthetic green sulfur bacteria brought up from the bottom of the harbor by warm waters aqua.org/stories/2023...
Reposted by Alex Crits-Christoph
uncultured.carinilab.com
What are folks using for calling genes these days in isolate genomes: PGAP, Bakta, or Prokka? This is for a 70% GC genome of a very novel lineage.
Reposted by Alex Crits-Christoph
thibautbrunet.bsky.social
Latest from ours: www.cell.com/cell-reports...

This is two stories in one: a case study/cautionary tale on developing genetic tools in new organisms, and the first hint at a gene regulatory network for choanoflagellate multicellular development (which turn out to involve a Hippo/YAP/ECM loop!) A 🧵
acritschristoph.bsky.social
So, their argument here is that biology is uniquely dangerous because of ultra unlikely tail risks ("It only creates one AI-generated self-replicating mirror von neumann machine prion to kill us all!") as opposed to actual realistic safety issues

But, the error there is in poor intuition for bio
Reposted by Alex Crits-Christoph
rfaure.bsky.social
🧵5/6
The sketching makes assembly extremely fast: a gut metagenome sample of 138Gbp of sequencing data was assembled in less that 2h and 10G RAM on 8 threads ⚡. And thanks to MSRs, *highly similar strains are not collapsed*
Reposted by Alex Crits-Christoph
Reposted by Alex Crits-Christoph
theresluethi.bsky.social
Stammt #Covid aus einem chinesischen Labor oder entstand das Coronavirus durch natürliche Übertragung vom Tier auf den Menschen? In den USA glauben zwei Drittel der Leute, dass Covid aus dem Labor kam. In Europa dürfte es ähnlich sein. Kein Wunder: Die Medien ...
www.bazonline.ch/covid-warum-...
Eine dunkle Vermutung über Corona grassiert – und ist so ansteckend wie das Virus
Zunehmend berichten auch seriöse Medien über die sogenannte Laborthese. Demnach wurde der Erreger künstlich hergestellt. Was ist an der These dran?
www.bazonline.ch
Reposted by Alex Crits-Christoph
vscooper.micropopbio.org
DYK most P. aeruginosa carry filamentous phage(s) that don't need to kill the cell to reproduce?

We 👉🏻@nanamikubota.bsky.social show that these Pf phages can go ROGUE.

"Filamentous cheater phages drive bacterial and phage populations to lower fitness"

🔗 authors.elsevier.com/c/1lt5I3QW8S...
Reposted by Alex Crits-Christoph
taylorpriest.bsky.social
Interested in aligning your long sequences or small genomes against huge reference databases containing millions of prokaryotic genomes ? A new tool has been released that can do this efficiently - LexicMap - www.nature.com/articles/s41...
Efficient sequence alignment against millions of prokaryotic genomes with LexicMap - Nature Biotechnology
LexicMap uses a fixed set of probes to efficiently query gene sequences for fast and low-memory alignment.
www.nature.com