Welcome to the Jemielity Group

Welcome at the website of Jacek Jemielity Group at Centre of New Technologies and the Division of Biophysics, Faculty of Physics, University of Warsaw. Our group is interested in the chemical synthesis, properties and applications of modified nucleotides and nucleic acids. Our research encompasses improving methods for the chemical synthesis of nucleotide analogs, designing new modified nucleotides as tools for molecular biology and conjugating nucleotides to labels, tags and new materials. One of our particular interests, is development of eukaryotic mRNA cap analogs with potential medicinal applications.

Recent News

Asia’s Habilitation

Sincere congratulations to Joanna Kowalska, whom the Council of Chemical Sciences at the University of Warsaw awarded the habilitation...


Recently we have said goodbye to 3 members of our group - Natalia and Tomek - our former post-docs,...

Post-doc wanted

We are looking for candidate to fill post-doc research position in a biology-oriented research project. More information can be...

News archive


Synthesis and applications of phosphate-modified nucleotides
mRNA cap analogs for the preparation of chemically engineered mRNAs
Cap analog-based inhibitors of protein biosynthesis
Nucleotide labeling, conjugation and immobilization

Molecular Collection

Warning: preg_replace(): The /e modifier is no longer supported, use preg_replace_callback instead in /home/platne/serwer19454/public_html/jemielitygroup.pl/wp-content/plugins/ubillboard/lib/classTextile.php on line 1526
Mononucleotide mRNA cap analogs with unmodified (oligo)phosphate moiety
Mononucleotide mRNA cap analogs with modified (oligo)phosphate moiety
enzymatically resistant inhibitors or translation
Reagent for the preparation of mRNAs with enhanced stability and translation efficiency β-S-ARCA

Recent Publications

NAD Analogs in Aid of Chemical Biology and Medicinal Chemistry

By Anais Depaix, Joanna Kowalska,

Published in Molecules 24 (2019)

N1-Propargylguanosine Modified mRNA Cap Analogs: Synthesis, Reactivity, and Applications to the Study of Cap-Binding Proteins

By Michał Kopciał, Błażej A. Wojtczak, Renata Kasprzyk, Joanna Kowalska, Jacek Jemielity,

Published in Molecules 24 (2019)

Fluorescent turn-on probes for the development of binding and hydrolytic activity assays for mRNA cap-recognising proteins

By Renata Kasprzyk, Beata Jagoda Starek, Sylwia Ciechanowicz, Dorota Kubacka, Joanna Kowalska, Jacek Jemielity,

Published in Chemistry - A European Journal 25 (2019) 6728-6740

Publications archive