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

PhD student wanted

We are looking for candidate to fill PhD student position in a bioorganic chemistry field research project. More information...

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,...

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

Synthesis of trifluoromethylated purine ribonucleotides and their evaluation as 19F NMR probes

By Mikołaj Chromiński, Marek R. Baranowski, Sebastian Chmieliński, Joanna Kowalska, Jacek Jemielity,

Published in The Journal of Organic Chemistry (2020)

The identity and methylation status of the first transcribed nucleotide in eukaryotic mRNA 5′ cap modulates protein expression in living cells

By Paweł J. Sikorski, Marcin Warmiński, Dorota Kubacka, Tomasz Ratajczak, Dominika Nowis, Jonanna Kowalska, Jacek Jemielity,

Published in Nucleic Acids Research (2020)

Purine and pyrimidine dinucleoside polyphosphates differentially affect the phenylpropanoid pathway in Vitis vinifera L. cv. Monastrell suspension cultured cells

By Małgorzata Pietrowska-Borek, Anna Wojdyła-Mamoń, Jędrzej Dobrogojski, Agnieszka Młynarska-Cieślak, Marek R Baranowski, Jakub M. Dąbrowski, Joanna Kowalska, Jacek Jemielity, Sławomir Borek, Maria Angeles Pedreño, Andrzej Guranowski,

Published in Plant Physiology and Biochemistry 147 (2020) 125-132

Publications archive