Sign in

James Kosmopoulos

@kosmopoulos.bsky.social
199 followers 213 following 60 posts

Fourth-year microbiology PhD candidate in the Anantharaman Lab at UW-Madison | Developing bioinformatics tools and resources for #viromics & exploring viral community ecology in soils | he/him

PostsRepliesMedia
Reposted by James Kosmopoulos
Sullivan Lab at OSU @sullivan-lab.bsky.social · 06/07/2026
🚨VIROMICS WORKSHOP 2026🚨 Application is now OPEN for the 8th International Viromics Workshop, Oct. 14-16, 2026, in-person at Ohio State University. Application closes Aug. 7. Apply: forms.gle/pJFLDCNEBvAe... Full details: u.osu.edu/viruslab/vir... #viromics #viruses #ecology #workshop
forms.gle
01616
James Kosmopoulos @kosmopoulos.bsky.social · 19/05/2026
Last week I had the pleasure of presenting my thesis work on developing bioinformatics tools and databases for viral gene discovery and classification at the Midwest Microbiome Symposium, hosted at my alma mater, UIUC. It was great to see what microbiome scientists across the Midwest are working on!
381
James Kosmopoulos @kosmopoulos.bsky.social · 19/05/2026
Check out this microbial ecology themed card game! I’ve been a fan of Ecologies for several years, so I was very excited to hear about their latest expansion. I think it would benefit from including more viruses… but I’m biased and still very impressed!
210
Reposted by James Kosmopoulos
Christina Hazard @christinahazard.bsky.social · 16/05/2026
🏰 Debate the frontiers of soil virology in a 13th-century French château. A few places just opened up! Join an international community of soil virus researchers for: 🎤 Keynotes from leading voices 💬 Roundtables on the field's biggest questions 🤝 Rare connections 👇 Register now
soilmicrobes.fr
ISVC2026
We are excited to announce and provide RSVP details for the next International Soil Virus Conference that will be held in Saint Loup Lamairé, France on June 16 – 18, 2026. The aim of the conference…
021
Reposted by James Kosmopoulos
Mya Breitbart @viromegirl.bsky.social · 06/05/2026
Lots of people have reached out asking how they can support us after the devastating fire in the MSL building, the heart of @cmarinescience.bsky.social Here’s one way, a GoFundMe organized by our graduate students - gofund.me/4373c6ff3. Please share widely, and thanks for helping our community!
gofund.me
Donate to USF Marine Science: Fire Recovery Support, organized by Bella Iannotta
On Saturday, May 2nd the University of South Florida Marine Science Lab (MSL)… Bella Iannotta needs your support for USF Marine Science: Fire Recovery Support
23240
James Kosmopoulos @kosmopoulos.bsky.social · 27/04/2026
Can’t believe what I found at an antique store in Madison, WI. A sketch of the Swope Center and Eel Pond at @mblscience.bsky.social. So interesting that it ended up all the way over here! This one’s going up on the wall.
171
Reposted by James Kosmopoulos
Yunha Hwang @microyunha.bsky.social · 03/03/2026
Protein–protein interactions (PPIs) are key to discovering and interpreting new biological functions. We’re excited to introduce 𝑭𝒍𝒂𝒔𝒉𝑷𝑷𝑰: a new application of gLM2 that uses genomic language modeling to predict proteome-wide PPIs in microbial genomes in minutes.
24222
James Kosmopoulos @kosmopoulos.bsky.social · 20/02/2026
I’ll be presenting at the next ECR Viromics Webinar on March 11 at 9 AM CT, highlighting a new tool I’ve been developing in the @karthik-a.bsky.social lab for scalable, automated discovery and curation of auxiliary viral genes: CheckAMG. Details and registration here: coms.osu.edu/webinars/ecr...
ECR Viromics Webinar Series flyer https://coms.osu.edu/webinars/ecr-viromics-webinar-series
053
Reposted by James Kosmopoulos
Sullivan Lab at OSU @sullivan-lab.bsky.social · 12/01/2026
🚨vConTACT3 now in Nature Biotechnology: - >95% agreement with ICTV for known viruses - Classifies both prokaryotic and eukaryotic viruses - Extends beyond genus → subfamily, family & order - Systematically assigns taxonomy to tens of thousands of previously unclassified viruses
12215
Reposted by James Kosmopoulos
Ashish Malik @ashish-malik.bsky.social · 18/12/2025
We made it to the university webpage for our latest paper in Nature Microbiology. 🦠 www.ed.ac.uk/news/peatlan...
ed.ac.uk
Peatland viruses play active role in ecosystem health | News | The University of Edinburgh
Viruses found in peatlands could play a more important role in carbon storage than previously thought and become indicators of ecosystem health, a study says.
2152
Reposted by James Kosmopoulos
Evelien Adriaenssens @evelienadri.bsky.social · 11/12/2025
I'm proud to share the latest methods work from my group. Led by @revathykri.bsky.social we wrote a book chapter on how we process and analyse viromes. Thanks to co-authors @rikhaagmans.bsky.social @ryancook94.bsky.social & Alise Ponsero link.springer.com/protocol/10....
link.springer.com
Virome Analysis
Viruses are omnipresent and the most abundant biological entities on the planet. They play a critical role in shaping the ecology and evolution of all life forms. This chapter provides methods to perf...
12115
Reposted by James Kosmopoulos
Maggie Langwig @maggielangwig.bsky.social · 10/12/2025
So happy this is finally out! We reconstructed the 1st large-scale spatiotemporal dataset of 600+ MAGs from San Francisco Bay and show they have functional redundancy in key N and S pathways. These functions may better recover from disturbance in this highly urban estuary 💧
academic.oup.com
Metabolic capacity is maintained despite shifts in microbial diversity in estuary sediments
Abstract. Estuaries are highly productive ecosystems where microbial communities drive nutrient and carbon cycling, supporting complex food webs. With inte
12714
James Kosmopoulos @kosmopoulos.bsky.social · 10/12/2025
Soil viruses are important regulators of ecosystem function, but what are their roles in environments that face long-term degradation and restoration? In our paper published today in Nature Micro, we asked how soil viruses influence peatland recovery, and vice versa. www.nature.com/articles/s41...
nature.com
Ecosystem health shapes viral ecology in peatland soils - Nature Microbiology
Metagenomics shows that viral diversity and community structure are shaped by geography and ecosystem health status, positioning viruses as unexpected players in peatland restoration.
23018
Reposted by James Kosmopoulos
Simon Roux @simrouxvirus.bsky.social · 03/12/2025
🦠🧪🧬🚨 New paper and database alert: the new IMG/VR release is now MetaVR ! We have a new website - meta-virome.org - with quick search capabilities for the >24M viruses, >12M vOTUs, and >42M protein clusters (including >790k with predicted structures !). academic.oup.com/nar/advance-...
academic.oup.com
Meta-virus resource (MetaVR): expanding the frontiers of viral diversity with 24 million uncultivated virus genomes
Abstract. Viruses are ubiquitous in all environments and impact host metabolism, evolution, and ecology, although our knowledge of their biodiversity is st
16443
Reposted by James Kosmopoulos
PLOS Biology @plosbiology.org · 25/11/2025
#Virus discovery has accelerated but linking viruses to hosts is hard. @sullivan-lab.bsky.social use synthetic #microbiomes to optimize & benchmark #Hi-C for virus-host linkage inference, applying this to existing #soil data to reveal 100s of novel linkages @plosbiology.org 🧪 plos.io/3MlAENO
Comparison of virus-host prediction from Hi-C and in silico tools. Top: Eular plot showing the overlap of viruses with host predictions obtained from the experimental Hi-C linkage approach, or one of two in silico tools (iPHoP and VirMatcher) that use different probabilistic models to aggregate output of various sequence-based features to create host prediction scores. Bottom: Comparison of virus-host predictions across all samples between Hi-C and iPHoP, shown with and without applying a Z-score filter for the Hi-C linkages. Black bars indicate congruent predictions identified from both tools and gray bars indicate non-congruent predictions. Note: Although many viruses had multiple predicted hosts from each tool, only the top-scoring prediction for each virus was considered in this comparison.
1138
James Kosmopoulos @kosmopoulos.bsky.social · 24/11/2025
Surely SOMEBODY mourns the wicked
000
James Kosmopoulos @kosmopoulos.bsky.social · 20/11/2025
Viral "dark matter" dominates the virosphere. In this review by me & @karthik-a.bsky.social, we synthesize what's known, highlight major gaps, and outline paths forward for illuminating viral protein functions in diverse ecosystems.
pubs.acs.org
Viral Dark Matter: Illuminating Protein Function, Ecology, and Biotechnological Promises
Viruses are the most abundant biological entities on Earth and play central roles in shaping microbiomes and influencing ecosystem functions. Yet, most viral genes remain uncharacterized, comprising w...
1147
Reposted by James Kosmopoulos
Sullivan Lab at OSU @sullivan-lab.bsky.social · 07/11/2025
🚨vConTACT3 preprint live!🚨(Peer Review soon...!) vConTACT3 delivers a unified, scalable, and transparent framework for genome-based virus taxonomy — helping translate big viral data into systematic classification. 🔗 Read the preprint: doi.org/10.1101/2025... Improvements details below 👇
doi.org
Scalable and systematic hierarchical virus taxonomy with vConTACT3
Viruses are key players in diverse ecosystems, but studying their impacts is technically and taxonomically challenging. Taxonomic complexities derive from undersampling, diverse DNA and RNA genomes wi...
23927
Reposted by James Kosmopoulos
Ashish Malik @ashish-malik.bsky.social · 16/09/2025
📢 Funded PhD opportunities for UK candidates in beautiful Edinburgh. Get in touch if you're interested in a PhD on understanding the mechanisms of soil carbon cycling and the role of microbes. We work in different ecosystems: peatlands, forests and agricultural soils. Please repost/spread the word.
Poster showing the following text: PhD in microbial mechanisms of soil carbon cycling. Soil microbes shape the global carbon cycle in life and death. We study the effect of aboveground land management on belowground soil carbon cycling processes. We aim create a scalable understanding of microbial processes from single cells to populations to communities to ecosystems. Pictures with text: peatland restoration, sustainable agriculture and woodland regeneration.
01724
James Kosmopoulos @kosmopoulos.bsky.social · 15/09/2025
This past year, my dad was diagnosed with Parkinson's disease. On October 5th, our family will walk together as Team Kosmo at Moving Day Chicago to celebrate his strength and support everyone living with Parkinson's.
151
Reposted by James Kosmopoulos
Karthik Anantharaman @karthik-a.bsky.social · 29/08/2025
New review paper on metabolic handoffs in microbiomes led by PhD student Katie Klier. We define major types of metabolic handoffs, examine their drivers and benefits, & describe their importance in different complex microbial systems and environments. www.sciencedirect.com/science/arti...
sciencedirect.com
An updated view of metabolic handoffs in microbiomes
From the human gut to the deep ocean, diverse microbial communities underpin essential ecosystem processes. Limited understanding of the dynamics and …
1156
James Kosmopoulos @kosmopoulos.bsky.social · 27/08/2025
Am I proud that I made an impulse buy? No. Am I okay with it because it was only $20 for a special series set of Canadian stamps with fungi and lichen? Yes.
220
Reposted by James Kosmopoulos
Karthik Anantharaman @karthik-a.bsky.social · 27/08/2025
New paper alert! We suggest caution in the analyses of viral auxiliary metabolic genes and propose a new overarching term - 'auxiliary viral genes' (AVGs) to describe different types of such genes. @simrouxvirus.bsky.social #phagesky #Microsky www.nature.com/articles/s41...
nature.com
A call for caution in the biological interpretation of viral auxiliary metabolic genes - Nature Microbiology
This Perspective discusses virus-encoded auxiliary metabolic genes and provides a framework for the biological interpretation of these genes.
27536
James Kosmopoulos @kosmopoulos.bsky.social · 11/08/2025
Looks like RFK Jr needs a lesson in viral taxonomy @evelienadri.bsky.social!!
120
Reposted by James Kosmopoulos
George Bouras @gbouras13.bsky.social · 08/08/2025
Stoked to finally have a preprint out for Phold, our tool that uses protein structural information to enhance phage genome annotation #phagesky 1/n www.biorxiv.org/content/10.1...
biorxiv.org
Protein Structure Informed Bacteriophage Genome Annotation with Phold
Bacteriophage (phage) genome annotation is essential for understanding their functional potential and suitability for use as therapeutic agents. Here we introduce Phold, an annotation framework utilis...
513766
Reposted by James Kosmopoulos
Ashish Malik @ashish-malik.bsky.social · 04/08/2025
📢 New preprint on work by my first PhD student William Pallier. Recovery of microbial ecophysiology and carbon accrual functions in peatlands under restoration. We demonstrate that microbial ecophysiology predictably changes with peatland ecosystem health. www.biorxiv.org/content/10.1...
1217
Reposted by James Kosmopoulos
Susie Grigson @susiegriggo.bsky.social · 30/07/2025
🚨 New preprint 🚨 My phage annotation tool, Phynteny, finally has a preprint and a brand new version powered by a cool AI transformer architecture and protein language models! #phagesky www.biorxiv.org/content/10.1...
biorxiv.org
Synteny-aware functional annotation of bacteriophage genomes with Phynteny
Accurate genome annotation is fundamental to decoding viral diversity and understanding bacteriophage biology; yet, the majority of bacteriophage genes remain functionally uncharacterised. Bacteriopha...
28944
James Kosmopoulos @kosmopoulos.bsky.social · 28/07/2025
Used any new tools or databases (released in the past ~year) for #metagenomics or #viromics? Found something especially useful- or seen recent insights using old methods? Reply with your favorites! I'm trying to compile a list of new resources and approaches.
000
James Kosmopoulos @kosmopoulos.bsky.social · 26/07/2025
Looks like a very useful database for classifying fungal sequences in soil metagenomes. Makes me realize I’ve probably overlooked a lot of fungal DNA in my soil datasets! www.biorxiv.org/content/10.1...
biorxiv.org
Improved detection of fungi and uncultivated microorganisms in soil metagenomes using a comprehensive genome database
Soils harbor diverse microbial communities crucial for ecosystem functioning, but poor genomic representation of many uncultured soil microorganisms limits the utility of existing databases to address...
031
Reposted by James Kosmopoulos
Morgan Sobol @msobol.bsky.social · 23/07/2025
My postdoc position is open again! If you’re interested and did not get your application in last time, please send one by end of this week! Start date asap, latest by end of Fall. ‼️
01115
Reposted by James Kosmopoulos
Nature Reviews Genetics @natrevgenet.nature.com · 21/07/2025
New online! Viromics approaches for the study of viral diversity and ecology in microbiomes
nature.com
Viromics approaches for the study of viral diversity and ecology in microbiomes
Nature Reviews Genetics, Published online: 21 July 2025; doi:10.1038/s41576-025-00871-wIn this Review, Roux and Coclet outline current viromics approaches and discuss how they have contributed to our growing understanding of viral genomic diversity, focusing on uncultivated viruses of microorganisms.
02919
Reposted by James Kosmopoulos
Rauf Salamzade @raufs.bsky.social · 11/07/2025
Great to see our manuscript on skDER & CiDDER - programs for selection of representative microbial genomes - now published. Please give them a try and if you have any feature requests or issues, just let us know. www.microbiologyresearch.org/content/jour... github.com/raufs/skDER
microbiologyresearch.org
skDER and CiDDER: two scalable approaches for microbial genome dereplication
An abundance of microbial genomes have been sequenced in the past two decades. For fundamental comparative genomic investigations, where the goal is to determine the major gain and loss events shaping...
1155
Reposted by James Kosmopoulos
Angel J Hernández Viera @angeljhv.bsky.social · 10/07/2025
I'm excited to announced that the version of record of this article is out in @elife.bsky.social. With the other first coauthor My Tran, we found that phage resistance cause reduced beta-lactam resistance and reduced virulence phenotypes in diverse MRSA strains. elifesciences.org/articles/102...
elifesciences.org
Bacteriophage infection drives loss of β-lactam resistance in methicillin-resistant Staphylococcus aureus
In methicillin-resistant Staphylococcus aureus, evolution of bacteriophage resistance causes trade-offs that re-sensitize the bacteriato β-lactam antibiotics.
21713
Reposted by James Kosmopoulos
Rafal Mostowy @rafalmostowy.bsky.social · 26/06/2025
This work was equally driven by two PhD students, Aleksandra Otwinowska (experiments) and Janusz Koszucki (bioinformatics). Check out the preprint or DM if you want to learn more. www.biorxiv.org/content/10.1...
biorxiv.org
Capsular specificity in temperate phages of Klebsiella pneumoniae is driven by diverse receptor-binding enzymes
Understanding host-range determinants in temperate bacteriophages is critical for elucidating phage-host co-evolution and advancing phage therapies. We analysed 3,900 Klebsiella genomes from diverse e...
0132
Reposted by James Kosmopoulos
STCmicrobeblog @stcmicrobeblog.bsky.social · 13/05/2025
#MicroSky with this author, karen lloyd, this is sure to be an entertaining read. and an exciting one at that...
053
Reposted by James Kosmopoulos
bioRxiv Bioinfo @biorxiv-bioinfo.bsky.social · 11/05/2025
Tool Choice drastically Impacts CRISPR Spacer-Protospacer Detection www.biorxiv.org/content/10.1101/202…
076
Reposted by James Kosmopoulos
Karthik Anantharaman @karthik-a.bsky.social · 05/05/2025
Excited to share our lab's latest work led by PhD student @maggielangwig.bsky.social describing the ecology and evolution of viruses in globally distributed hydrothermal vents. www.nature.com/articles/s41...
nature.com
Endemism shapes viral ecology and evolution in globally distributed hydrothermal vent ecosystems - Nature Communications
Viruses are pivotal players in deep-sea hydrothermal vents, shaping microbiomes by preying on key hosts. Through a global-scale analysis of vent viruses and their interactions, this study reveals that...
04915
Reposted by James Kosmopoulos
Cameron Thrash @jcamthrash.bsky.social · 21/04/2025
Engineering bacteriophages through deep mining of metagenomic motifs www.science.org/doi/full/10.... #jcampubs
science.org
Engineering bacteriophages through deep mining of metagenomic motifs
We unlock the potential encoded in phage metagenomes to engineer phages to change host range and kill pathogenic bacteria.
01811
Reposted by James Kosmopoulos
Coalition for Life Sciences @c4lifesciences.bsky.social · 15/04/2025
Abrupt termination of research doesn't stop waste, it CREATES waste! We call on @hhsgov.govmirrors.com to restore the funding without delay! #Cuts2Science
coalitionforlifesciences.org
CLS Calls on the Trump Administration to Restore Research Funding - The Coalition for the Life Sciences
On April 14, 2025, CLS Chair Jo Handelsman and Exec Director Adrienne Hallett sent a letter outlining the tremendous consequences of terminating research and asking that it be reinstated.
12417
Reposted by James Kosmopoulos
Manuela Raffatellu @manuelar.bsky.social · 04/04/2025
Great opinion article in the @nytimes.com today: www.nytimes.com/2025/04/03/o...
nytimes.com
Opinion | The Uncertain Fate of the Young American Scientist (Gift Article)
Young researchers are choosing between staying in science and staying in the United States.
075
Reposted by James Kosmopoulos
Kaçar Lab at UW-Madison @kacarlab.bsky.social · 24/03/2025
🚨New paper!🚨 A comprehensive take on the origins and evolution of translation factors & how these essential players evolved across the tree of life. 🌍🧬 Led by Evrim Fer @uwmadisonmdtp.bsky.social grad student! 👏 Free access: www.sciencedirect.com/science/arti... @cp-trendsgenetics.bsky.social
39446
Reposted by James Kosmopoulos
Artologica aka Michele Banks @artologica.net · 24/03/2025
Hey Bluesky, I heard u like viruses artologica.etsy.com 🧪🐡🦠
2 watercolor grids of virus images watercolor grid of virus images in purple and blue
612236
Reposted by James Kosmopoulos
Max Wilkinson @maxewilkinson.bsky.social · 01/03/2025
we recently found some really neat RNA-guided DNA-cutting systems in phages. Despite remarkable similarities to CRISPR systems, including encoding guide RNAs in arrays, they appear entirely evolutionarily distinct (but definitely related to snoRNAs 🤓) We decided to call them TIGR-Tas systems 🐯
220978
Reposted by James Kosmopoulos
Doran Goldman @goldmandoran.bsky.social · 11/03/2025
I’m thrilled to share my first ever publication, now published in PNAS! www.pnas.org/doi/10.1073/... With mentorship from the amazing @ksxue.bsky.social, I looked at how the outcomes of species introductions to microbial communities are influenced by the number of introduced microbes.
pnas.org
PNAS
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...
19130
James Kosmopoulos @kosmopoulos.bsky.social · 05/03/2025
A little late, but I had a wonderful time at the 5th IBSE international symposium at IIT Madras. Thank you to @karthik-a.bsky.social and Karthik Raman for organizing a conference with an excellent collection of speakers and students.
151
Reposted by James Kosmopoulos
Karthik Anantharaman @karthik-a.bsky.social · 22/02/2025
Our lab had a great time at the IBSE Microbiome Symposium. Looking forward to this in the future again.
0102
Reposted by James Kosmopoulos
Rauf Salamzade @raufs.bsky.social · 05/02/2025
Difficult to focus on science during these times, but if you have the bandwidth, our study on zol is now out in NAR: academic.oup.com/nar/article/... GitHub: github.com/Kalan-Lab/zol Please give the software a try and let us know if you have any feedback! And stay tuned for new features...
academic.oup.com
zol and fai: large-scale targeted detection and evolutionary investigation of gene clusters
Abstract. Many universally and conditionally important genes are genomically aggregated within clusters. Here, we introduce fai and zol, which together ena
2166
Reposted by James Kosmopoulos
Dr. Kat Napaaqtuk❄️ @napaaqtuk.bsky.social · 03/02/2025
🧪🦠 this thread has the letter I wrote to ASM about their removal of IDEAA websites, highlights of Black and other underrepresented scientists, and lack of information about the 2025 ABRCMS meeting in what looks like anticipatory obedience to the new administration. Subquoted thread has related info.
311434
Reposted by James Kosmopoulos
Karthik Anantharaman @karthik-a.bsky.social · 08/01/2025
News and Views by @naturemicrobiol.bsky.social on our recent papers describing the 20-year study of ecology and evolution of viruses and bacteria in freshwater systems. @archaeal.bsky.social @quendi.bsky.social @uwmadison.bsky.social www.nature.com/articles/s41...
nature.com
Crucial stepping stones in freshwater microbiology - Nature Microbiology
Three different studies in this issue use metagenomics to study the bacterial and viral dynamics of freshwater microbiomes, highlighting the ecological and environmental drivers of these ecosystems.
1248