Aarhus Universitets segl

The Zelikin group publishes in Nature Communications

Nature knows how to activate and deactivate enzymes on demand, without wasteful protein synthesis and degradation. Surprisingly, methods to do so using tools of chemistry are few. PhD candidate Mireia Casanovas Montasell, Prof. Alexander N. Zelikin and colleagues address this challenge in their new publication, published in Nature Communications.

Image of article science.
Image: Alexander Zelikin

Mechanisms of reversible protein deactivation are foundational in life. For example, these mechanisms are used by cells in signaling cascades, whereby multiple enzymes undergo controlled activity switch on/off events, which ultimately connects external signals to internal cellular responses. The Zelikin group focused on the protein cysteinome – proteins with cysteine amino acid – and designed chemical zymogens such that enzyme activity can be switched on demand using tools of chemistry. The key to the proposed designs in the reversible character of disulfide linkages.

Three classes of zymogens were designed and applied to three different enzymes, thus presenting a robust, reliable chemical platform for zymogen design. These are now being developed further, towards establishing signaling in artificial cells.

ITEM CONTENT AND PURPOSE
Type of study/method Journal article (peer reviewed)
External collaborators No external collaborators
External funding DFF FNU (Grant No 0135-00162B)

Novo Nordisk Foundation NERD grant (Grant No NNF20OC0062131)

Carlsberg Foundation (Grant No CF19-0275)

Lundbeck Foundation (Grant No R287-2018-1117)
Conflict(s) of interest No conflicts of interest
Other N/A
Link to the article https://www.nature.com/articles/s41467-022-32609-1 
Contact information Prof. Alexander Zelikin

Department of Chemistry and iNANO, Aarhus University

zelikin@chem.au.dk