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Roelfes Group

@roelfesgroup

Interdisciplinary group at the University of Groningen @rug.nl working on Artificial Enzymes, Bioorthogonal Catalysis and Chemistry in Living Cells. Posts by group members. https://sites.google.com/rug.nl/roelfesgroup/

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05.12.2024
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Latest posts by Roelfes Group @roelfesgroup

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Last week I had the pleasure of attending the Netherlands’ Catalysis and Chemistry Conference (NCCC), where I presented my research on photobiocatalytic atroposelective biaryl coupling.

I’m excited to share that I was awarded the Royal Society of Chemistry @rsc.org EES Catalysis Best Talk Prize!

09.03.2026 14:26 👍 3 🔁 1 💬 1 📌 0
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📣 Thrilled to announce our incredible speaker lineup for the 2026 edition of #ETOC Online Symposium on April 29-30th.🗓️ Join us by registering today and to stay up-to-date! : tinyurl.com/ETOC2026-reg... (1/3)

04.02.2026 19:17 👍 14 🔁 8 💬 1 📌 1
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Engineering Fluoroacetate Dehalogenase by Growth‐Based Selections on Non‐Natural Organofluorides We present a high-throughput selection system to engineer fluoroacetate dehalogenases (FAcDs). By challenging E. coli populations that produce diverse FAcD libraries to grow on non-natural organofluo....

🥳🥳🥳 Our study on engineering enzymes to break C–F bonds is out in @angewandtechemie.bsky.social. Congrats to the brilliant & dedicated @suzannejansen.bsky.social for taking this step toward the remediation of #PFAS & other contaminating organofluorides!
onlinelibrary.wiley.com/doi/10.1002/...

28.01.2026 16:35 👍 9 🔁 6 💬 0 📌 0
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Season’s greetings from the Roelfes and Mayer groups! 🎉🎄
Warm wishes to our colleagues, collaborators, and friends across the community for a joyful holiday season and an inspiring New Year ahead. ✨🧪

12.12.2025 21:43 👍 4 🔁 1 💬 0 📌 0
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Our postdoc Valeria Poggetti @valeriapoggetti.bsky.social presented her work on Nucleophilic Catalysis in Thiophenol-Based Designer Enzymes at #NWOChains

@stratinghinst.bsky.social @rug.nl

02.12.2025 17:23 👍 2 🔁 0 💬 0 📌 0
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Last week I have defended my PhD in the beautiful Aula of the @rug.nl with a thesis entitled "Mapping the Sequence Landscape of an Artificial Enzyme". Such a huge diploma is proportionate to the immensely beautiful experience behind a PhD in the @roelfesgroup.bsky.social. Thank you very much to all!

11.11.2025 18:04 👍 5 🔁 2 💬 0 📌 0
Upper half of a PhD position accountment in the field of biochemistry.

Upper half of a PhD position accountment in the field of biochemistry.

Lower half of a PhD position accountment in the field of biochemistry.

Lower half of a PhD position accountment in the field of biochemistry.

I am looking for a PhD student interested in enzymes!

For the full annoucement: www.chemzymes.com

15.10.2025 09:12 👍 12 🔁 10 💬 0 📌 1
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📢📢 New paper out!

AI and networks can be used to predict distal mutations in proteins, even in artificial enzymes!
Check out the article here
----‐> doi.org/10.1016/j.ij...

Thread 1/5 🧵

08.08.2025 10:43 👍 2 🔁 2 💬 1 📌 0
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Engineering fluoroacetate dehalogenase by growth-based selections to degrade non-natural organofluorides The widespread use of organofluorides in modern society has inadvertently led to the bioaccumulation of harmful pollutants, most prominently per- and polyfluorinated alkyl substances (PFAS). In princi...

With #PFAS and other organofluorides wreaking havoc, we set out to engineer natural defluorinases for man-made organofluorides. All credit goes to the amazing @suzannejansen.bsky.social, who has outdone herself in this project! (1/5)
www.biorxiv.org/content/10.1...

17.07.2025 08:51 👍 9 🔁 4 💬 1 📌 1
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Our postdoc @francdefel.bsky.social just gave a fantastic talk on gold-based artificial metalloenzymes for asymmetric catalysis. #Biotrans2025
@stratinghinst.bsky.social @rug.nl

01.07.2025 10:44 👍 6 🔁 1 💬 0 📌 1

Please also check posters 007 and 257 to find out more about radical biocatalysis and leveraging epistasis efficiently in artificial enzymes, respectively.
@stratinghinst.bsky.social

01.07.2025 10:39 👍 3 🔁 0 💬 0 📌 0
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#Biotrans2025 Gerard just gave an overview on recent advances in non-canonical amino acids application for novel artificial (metallo)enzymes from our group.

01.07.2025 10:39 👍 5 🔁 0 💬 1 📌 0
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#RepArtZymes pre-conference in Basel also brought together some of our old and current group members.
@zhizhou1619.bsky.social @reubenlg.bsky.social

27.06.2025 14:35 👍 9 🔁 1 💬 0 📌 0
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Our group members are attending #RepArtZymes Biotrans 2025 pre-conference. Gerard just presented our work on Artificial Metalloenzymes Featuring Thiol-Based Amino Acids. Compliments to the organisers #WardGroup for the fantastic program and a great get-together of the key players in our field.

26.06.2025 18:33 👍 9 🔁 0 💬 0 📌 0
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Great experience at the Green Chemistry & Engineering Conference! Amazing time around a neat program.

Extremely grateful for giving me the chance to share my work in an environment that pushes towards sustainable research

#GreenChemistry #MSCA

@acsgci.bsky.social @roelfesgroup.bsky.social

26.06.2025 12:55 👍 6 🔁 1 💬 0 📌 0
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Roelfes group - Open Positions PhD position on Hybrid biocatalytic cascades aided by Machine learning (1.0 FTE)

📢📢📢 PhD Opportunity!

Join our research group at RUG! We're seeking a motivated PhD student for a project on biocatalytic cascade processes combining natural and designer enzymes, supported by machine learning.
Click below to learn more — and feel free to share!

sites.google.com/rug.nl/roelf...

12.05.2025 09:10 👍 11 🔁 13 💬 0 📌 1

Very proud to share that one of my main PhD projects has been published in @chemicalscience.rsc.org, and that it has been selected as a #ChemSciPicks of the week paper!

Keep reading below for more details, or check out the full paper for free online: doi.org/10.1039/D5SC...

Thread ⬇️

23.04.2025 09:17 👍 19 🔁 2 💬 1 📌 1
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Check out this week’s #ChemSciPicks from Gerard Roelfes (@roelfesgroup.bsky.social, @stratinghinst.bsky.social) et al.!

‘Genetically Encoded 3-Aminotyrosine as Catalytic Residue in a Designer Friedel-Crafts Alkylase’

Read it here for free: doi.org/10.1039/D5SC...

#ChemSky 🧪

23.04.2025 09:00 👍 13 🔁 6 💬 1 📌 1

Had an amazing week at #ACSSpring2025! It was an intense but incredibly rewarding experience with top speakers and insightful discussions. I'm grateful for the opportunity to present my research in the biocatalysis session - awesome interaction! #MSCA @roelfesgroup.bsky.social

27.03.2025 20:45 👍 3 🔁 1 💬 0 📌 0
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Had an amazing week at the MetRaZymes @metrazymes.bsky.social Winter School in Hirschegg, Austria! It was a pleasure to learn, share, and connect with fellow researchers in our doctoral network. We organized and attended insightful lectures and workshops on ⬇️🧵

22.03.2025 12:01 👍 7 🔁 4 💬 1 📌 0
A spaceship as an allegory to an independent, self recycling system.

A spaceship as an allegory to an independent, self recycling system.

We are announcing about 30 PhD positions in the @fwf-at.bsky.social Cluster of Excellence Circular Bioengineering www.circularbioengineering.at/jobs
9 projects open in Progamme 2 (Self-Sustainable Microbial Systems) in 4 Austrian Universities

10.03.2025 14:45 👍 4 🔁 4 💬 1 📌 0

@stratinghinst.bsky.social
@unigroningen.bsky.social

12.03.2025 09:32 👍 1 🔁 0 💬 0 📌 0
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Huge congratulations to our former PhD student Reuben @reubenlg.bsky.social on winning the KNCV-DCS Thesis Award from the Dutch Catalysis Society for his outstanding PhD research in our group! A well-deserved recognition of his hard work and dedication. 🎉

12.03.2025 09:32 👍 10 🔁 1 💬 1 📌 0
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Tanja presented her work on metallaphotoredox catalysis in designer photoenzymes.
Congrats to both of you!
@stratinghinst.bsky.social @unigroningen.bsky.social

11.03.2025 19:01 👍 4 🔁 1 💬 0 📌 0
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Our group members Tanja and Franco @francdefel.bsky.social presented their exciting research at NCCC this week.
Franco talked about his work on asymmetric catalysis in gold-based artificial metalloenzymes.

11.03.2025 19:01 👍 3 🔁 1 💬 1 📌 1

This accomplishment would not have been possible without the tireless work of Ru Jiang and @fabricas.bsky.social and the expertise of Andy-Mark Thunnissen in solving the holoenzyme structure.
Great work everyone! 🏆

14.02.2025 14:10 👍 0 🔁 0 💬 0 📌 0
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An artificial copper‐Michaelase featuring a genetically encoded bipyridine ligand for asymmetric additions to nitroalkenes Artificial metalloenzymes (ArMs) are an attractive approach to achieving “new to nature” biocatalytic transformations. In this work, a novel copper-dependent artificial Michaelase (Cu_Michaelase) com...

Check it out here: onlinelibrary.wiley.com/doi/10.1002/...

14.02.2025 14:10 👍 0 🔁 0 💬 1 📌 0

The excellent properties of the evolved artificial metalloenzyme enabled its application in preparative-scale synthesis, yielding valuable synthons for the production of pharmaceutical compounds.

14.02.2025 14:10 👍 0 🔁 0 💬 1 📌 0

Using a magnetic bead-based assay, we successfully evolved this newly-generated biocatalyst, achieving perfect enantioselectivity and high yields in the asymmetric new-to-nature addition to nitroalkenes.

14.02.2025 14:10 👍 0 🔁 0 💬 1 📌 0
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Our latest publication is out in @angewandtechemie.bsky.social!

We generated and engineered a novel artificial metalloenzyme for the enantioselective synthesis of a panel of γ-nitro-carbonyl compounds on a preparative scale.

14.02.2025 14:10 👍 10 🔁 2 💬 1 📌 0