#Methyltransferases
With chimeric cofactors, we can turn methyltransferases into prenyltransferases. Methyltransferases even prefer AdoPrenyl!Thanks to co-first author Arne and the team led by Andrea
@rentmeisterlab.bsky.social #ChemSky #ChemBio
Read the full story in CHEM www.cell.com/chem/fulltex...
April 9, 2025 at 3:46 PM
A new and fascinating story from @bencarty.bsky.social and the group, with crucial help from the teams of @naltemose.bsky.social, Simona Giunta, and @dfachinetti.bsky.social. Many thanks to all for a fantastic collaboration.
www.nature.com/articles/s41...
November 25, 2025 at 12:16 PM
New preprint! In an fun collaboration with @imaeso.bsky.social and @mirimiam.bsky.social led by Manu F-M, we set to explore the potential adaptation of transposable elements 👾 to host adenine DNA methylation by recruiting prokaryotic DAM methyltransferases: www.biorxiv.org/content/10.6.... 1/6
www.biorxiv.org
May 26, 2026 at 9:58 AM
Amazing paper, especially love this figure of what differentiates broad host range phages: especially Diversity Generating Retroelements and multiple methyltransferases
November 7, 2025 at 3:01 AM
Loss of restriction-modification methyltransferases drives persistence to fluoroquinolones in Pseudomonas aeruginosa www.biorxiv.org/content/10.6...
Loss of restriction-modification methyltransferases drives persistence to fluoroquinolones in Pseudomonas aeruginosa
The resurgence of phage therapy has renewed interest in the interplay between phage resistance and antibiotic susceptibility and has stimulated research in the emergent field of non-canonical cellular...
www.biorxiv.org
September 27, 2026 at 1:06 PM
Pervasive co-option of prokaryotic adenine methyltransferases by eukaryotic retrotransposons https://www.biorxiv.org/content/10.64898/2026.05.21.726589v1
May 23, 2026 at 4:32 AM
Very proud to have our latest work now online in
@natsmb.nature.com. A wonderful team effort across the centromere community, across @jansenlab.bsky.social @naltemose.bsky.social @dfachinetti.bsky.social and Giunta labs. Happy reading! 1/4

www.nature.com/articles/s41...
Heterochromatin boundaries maintain centromere position, size and number - Nature Structural & Molecular Biology
Carty et al. identify the H3K9 methyltransferases that restrict the size and position of the centromere protein A chromatin domain, maintaining functional centromeres.
www.nature.com
November 27, 2025 at 9:58 PM
Very happy to see our paper finally out in @natcomms.nature.com! 🎉
We uncover a role for lysine methylation in controlling parasite movement: methyltransferases act directly at the apical cytoskeletal machinery to coordinate actin assembly and force generation, enabling motility and invasion.
August 27, 2026 at 7:41 AM
pseudoscience slop

1. methyl groups don’t “attach themselves” spontaneously to DNA or other molecules, anymore than trees spontaneously form paper or lumber

2. Enzymes called methyltransferases evolved to catalyze this modification in a precise way, via a specialized cofactor, S-adenosylmethionine
absolutely losing it at my 14yo's biology homework
December 15, 2025 at 3:57 PM
'Beyond Paxlovid: Scientists Unveil Game-Changing Antiviral That Could Combat COVID, Ebola, and More'

'Scientists have has pioneered antivirals targeting viral methyltransferases, offering a new strategy for treating RNA and DNA viruses.'

scitechdaily.com/beyond-paxlo...
Beyond Paxlovid: Scientists Unveil Game-Changing Antiviral That Could Combat COVID, Ebola, and More
Scientists have has pioneered antivirals targeting viral methyltransferases, offering a new strategy for treating RNA and DNA viruses. This breakthrough could complement existing therapies, offering r...
scitechdaily.com
December 23, 2024 at 9:14 PM
Sequence-independent 6mA methyltransferases for epigenetic profiling and editing. #DNAmodification #6mA #Epigenetics #Genomics @cp-trendsgenetics.bsky.social
www.cell.com/trends/genet...
October 24, 2025 at 1:49 PM
Ruchi Anand on AMR closing out Session 1 - Methyltransferases for antibiotic resistance. E.g. ribosome: SAM-dependent dimethylation of a ribosomal RNA Adenine to prevent antibiotic binding. Double flip bases to insert into active site via long distance allostery 🤩

#lorneproteins26
February 8, 2026 at 7:47 AM
#Plant-specific H3K27me1 is crucial for maintaining heterochromatin condensation and #genome stability in somatic #cells. But what role do H3K27 mono-methyltransferases play in germline cells?
Read the study here #OpenAccess ⬇️
doi.org/10.1111/jipb...
@wileylifesci.bsky.social
#PlantSci #JIPB
ATXR5 and ATXR6 restrict meiotic crossover formation within heterochromatin in Arabidopsis
The Arabidopsis H3K27 mono-methyltransferases ATXR5 and ATXR6 repress crossovers within meiotic heterochromatin, are required for heterochromatin condensation and H3K27me1 establishment, and specific...
doi.org
July 16, 2026 at 1:02 PM
And here is the LMU press release for our article in Chem: www.lmu.de/en/newsroom/...
Organic syntheses: new chemistry challenges dogma
LMU researchers have developed a novel cofactor that broadens the use of methyltransferases – with great potential for research and applications.
www.lmu.de
April 10, 2025 at 6:54 PM
Beyond excited to see this work finally out in @narjournal.bsky.social! We show that epigenetic modifiers on fungal accessory chromosomes can contribute to the overall epigenetic profile. Many thanks to @gomezlucia93.bsky.social and our other amazing collaborators 👏🏻

academic.oup.com/nar/article/...
Facultative heterochromatin mediated by core and accessory chromosome-encoded H3K27-specific methyltransferases controls virulence in a fungal phytopathogen
Abstract. In many fungal phytopathogens, infection is regulated by accessory genomic regions enriched in facultative heterochromatin, but the precise role
academic.oup.com
January 7, 2026 at 3:39 PM
Methyltransferases in Candidate Phyla Radiation: A Weapon or a Simple Shield? www.biorxiv.org/content/10.6... #jcampubs
July 21, 2026 at 1:37 PM
🌳🔬 RESEARCH 🔬🌳

A dihydrochalcone-specific O-methyltransferase from leaf buds of Populus trichocarpa implicated in bud resin formation – Piirtola et al.

🔗 doi.org/10.1093/jxb/...

#PlantScience 🧪
June 2, 2025 at 10:40 AM
How does remodeling activity influence a writer? Structural studies show methyltransferases like PRC2 bridging two nucleosomes, with di-nucleosome substrates stimulating catalysis. Our model: Mit1 repositions nucleosomes in configurations that favor H3K9 methyltransferase activity.
August 3, 2026 at 12:05 PM
Online now! Online now! Arginine methylation in immunoregulation: Mechanisms and therapeutic targeting #chembiol
Arginine methylation in immunoregulation: Mechanisms and therapeutic targeting
Han et al. review how protein arginine methyltransferases (PRMTs) coordinate chromatin regulation, RNA metabolism, and immune signaling. They discuss emerging roles of PRMTs in tumor immunity and inflammaging and discuss catalytic and non-catalytic strategies for therapeutically targeting PRMT-dependent immune regulation.
dlvr.it
October 6, 2026 at 3:30 PM
Functional Analyses of Histone Methyltransferases in Sea Lamprey Embryos Undergoing Programmed DNA Elimination https://www.biorxiv.org/content/10.64898/2026.01.08.698478v1
January 10, 2026 at 1:31 AM
What sort of methyltransferases? We've spent a lot of time developing assay platforms to build a target class profile of 'small molecule' or metabolic methyltransferases. Here's a paper from our group:

pubs.acs.org/doi/10.1021/...
Target Class Profiling of Small-Molecule Methyltransferases
Target class profiling (TCP) is a chemical biology approach to investigate understudied biological target classes. TCP is achieved by developing a generalizable assay platform and screening curated compound libraries to interrogate the chemical biological space of members of an enzyme family. In this work, we took a TCP approach to investigate inhibitory activity across a set of small-molecule methyltransferases (SMMTases), a subclass of methyltransferase enzymes, with the goal of creating a launchpad to explore this largely understudied target class. Using the representative enzymes nicotinamide N-methyltransferase (NNMT), phenylethanolamine N-methyltransferase (PNMT), histamine N-methyltransferase (HNMT), glycine N-methyltransferase (GNMT), catechol O-methyltransferase (COMT), and guanidinoacetate N-methyltransferase (GAMT), we optimized high-throughput screening (HTS)-amenable assays to screen 27,574 unique small molecules against all targets. From this data set, we identified a novel inhibitor which selectively inhibits the SMMTase HNMT and demonstrated how this platform approach can be leveraged for a targeted drug discovery campaign using the example of HNMT.
pubs.acs.org
March 4, 2025 at 3:32 AM
Jennifer Andexer (@andexerlab.bsky.social) introduced the session on S-adenosyl methionine at #Biochemistry2026 and then gave an insightful lecture: "How to turn an N into an O: Controlling the chemoselectivity of SAM-dependent methyltransferases".

#Biochemistry #ChemSky #ChemBio @gdch.de
March 16, 2026 at 3:01 PM