DNA is often thought of as a static archive of genetic information. But genomes are constantly subjected to alterations in their structure and content. Much of this plasticity can be attributed to transposons, pieces of DNA that autonomously ‘jump’ between and within genomes. By driving variation and interspecies transfer of genetic data, transposons shape the biology and the evolution of organisms. But how do transposons move? How do they interact with their hosts? How can we leverage them to artificially modify genomes?
To understand the mechanisms, functions and applications of transposons, the Querques lab analyses the macromolecular organization and the mechanisms underlying DNA mobilization using cryo-electron microscopy and X-ray crystallography together with biochemical and biophysical methods. Irma and her team investigate the interplay between transposons and host machineries, including CRISPR-Cas systems, and their biotechnological potential using cell-based functional assays, protein design and genome engineering experiments.
The project BROADCAST will not only make key contributions to the molecular understanding and harnessing of transposons, but holds the long-term potential to develop genome engineering tools for research and medicine.
About Irma Querques
Irma Querques studied biotechnology at the University of Bologna (Italy) and received her PhD in 2018 from the European Molecular Biology Laboratory in Heidelberg, where she worked on the biochemical and structural characterization of eukaryotic transposons with Prof. Orsolya Barabas. She completed her post-doctoral training in the laboratory of Prof. Martin Jinek at the University of Zurich as a recipient of the FEBS, EMBO and Branco Weiss fellowships to study bacterial CRISPR-associated transposons. In May 2023, Irma established her research group at the Max Perutz Labs.
Phage therapy for treating bacterial infections: a double-edged sword
Suckers and segments of the octopus arm
Using the house mouse radiation to study the rapid evolution of genes and genetic processes
CRISPR jumps ahead: mechanistic insights into CRISPR-associated transposons
SLiMs and SHelMs: Decoding how short linear and helical motifs direct PPP specificity to direct signaling
Title to be announced
Enigmatic evolutionary origin and multipotency of the neural crest cells - major drivers of vertebrate evolution
Visualising mitotic chromosomes and nuclear dynamics by correlative light and electron microscopy
Engineered nanocarriers for imaging of small proteins by CryoEM
Bacterial cell envelope homeostasis at the (post)transcriptional level
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Hydrologic extremes alter mechanisms and pathways of carbon export from mountainous floodplain soils
Dissecting post-transcriptional gene expression regulation in humans and viruses
Polyploidy and rediploidisation in stressful times
Prdm9 control of meiotic synapsis of homologs in intersubspecific hybrids
Title to be announced
RNA virus from museum specimens
Programmed DNA double-strand breaks during meiosis: Mechanism and evolution
Title to be announced