Karsten Eastman
28 posts

Karsten Eastman
@Taikade
Cofounder and Chief Executive Officer of Sethera Therapeutics
Salt Lake City Katılım Ocak 2012
29 Takip Edilen24 Takipçiler
Karsten Eastman retweetledi

What if we could make next-gen peptide drugs (think supercharged Ozempic) more stable, longer-lasting, and able to hit "undruggable" diseases? 💊💉⚗️
A radical enzyme called PapB just unlocked that - one enzymatic step to staple peptides into durable rings.
Interview w/ discoverer Dr. Karsten Eastman @Taikade - CEO @SetheraTx drops today! 🔥
Watch: youtube.com/watch?v=ZnRRFK…
#PeptideTherapeutics #Biotech #GLP1 #DrugDiscovery @JVPR_NY

YouTube

English
Karsten Eastman retweetledi

What if we could make next-gen peptide drugs (think supercharged Ozempic) more stable, longer-lasting, and able to hit "undruggable" diseases? 💊💉⚗️
A radical enzyme called PapB just unlocked that - one enzymatic step to staple peptides into durable rings.
Interview w/ discoverer Dr. Karsten Eastman @Taikade - CEO @SetheraTx drops today! 🔥
#PeptideTherapeutics #Biotech #GLP1 #DrugDiscovery @JVPR_NY
English

Enzymes as design tools, not just catalysts. This interview covers how we harness rSAM chemistry to create recombinant polymacrocyclic peptides with drug-like properties. drugdiscoveryonline.com/doc/how-sether… #Peptides #DrugDiscovery #Enzymology
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Karsten Eastman retweetledi

Enzyme PapB could boost diabetes and obesity peptide drugs drugtargetreview.com/news/189749/en…
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Check out our recent publication on enzymatic modification of GLP1 analogs! We think this is really exciting because it opens many unique doors for architectural changes in late-stage peptide development. pubs.acs.org/doi/10.1021/ac…
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Karsten Eastman retweetledi

Sethera's first paper has released at PNAS. Check it out here! pnas.org/doi/10.1073/pn… #peptides #enzymes #science
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@Vahooster and I were interviewed about the unusual enzyme that we have been working with. Check it out here: bioxconomy.com/modalities/pap…
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Natural enzyme expands possibilities for peptide drug discovery phys.org/news/2025-08-n… via @physorg_com
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Karsten Eastman retweetledi

A promiscuous #rSAM enzyme enables diverse peptide cross-linking doi.org/10.1021/acsbio… Working together with @taikade @MCMChem Paul Oblad, and @Vahooster (Bandarian) we show that PapB has a high tolerance for variations in the peptide substrate. @UtahChemistry @UUtah

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Karsten Eastman retweetledi

New in JBC press: "Scientists' findings lead to a new paradigm involving intermolecular electron transfer steps in the activation of rSAM enzymes that require multiple iron-sulfur clusters for turnover."
Learn more:
jbc.org/article/S0021-…

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Karsten Eastman retweetledi

A Promiscuous #rSAM Enzyme Enables Diverse Peptide Crosslinking
By Vahe Bandarian @Vahooster @UtahChemistry
🔓 Open access in ACS Bio & Med Chem Au 👉 go.acs.org/5RN
#ACSBioMedChemAu
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Karsten Eastman retweetledi

Another publication from my son, Karsten @Taikade, and others at @jbiolchem. Intermolecular electron transfer in radical SAM enzymes as a new paradigm for reductive activation. jbc.org/article/S0021-…
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Paper #3 is out! We were able to build and generate evidence for a new model for reductive activation in rSAM enzymes. We really hope other labs try the FMN + NADPH experiments!
jbc.org/article/S0021-…

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Karsten Eastman retweetledi

Starting to understand how a radical SAM enzyme makes a thioether crosslink - the auxiliary iron-sulfur cluster binds the substrate!
pubs.acs.org/doi/10.1021/ja…
English

Peptide Selenocysteine Substitutions Reveal Direct Substrate–Enzyme Interactions at Auxiliary Clusters in Radical S-Adenosyl-l-methionine Maturases @OHSUNews @UtahChemistry @Vahooster @UUtah #Peptide #Selenocysteine #Clusters #Radical #SAM #Maturases pubs.acs.org/doi/10.1021/ja…
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