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Beat Fierz

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Publications associées (58)

Development of a single-molecule approach to observe ubiquitination dynamics in defined chromatin states

Beat Fierz, Alexandra Teslenko

CELL PRESS2022

A single-molecule multiplexed approach to study Cas9 nucleosomes invasion

Louise Catherine Bryan, Beat Fierz, Kristina Makasheva

SPRINGER2021

SUV39 SET domains mediate crosstalk of heterochromatic histone marks

Nora Guidotti, Beat Fierz, Sinan Kilic

Y The SUV39 class of methyltransferase enzymes deposits histone H3 lysine 9 di- and trimethylation (H3K9me2/3), the hallmark of constitutive heterochromatin. How these enzymes are regulated to mark specific genomic regions as heterochromatic is poorly unde ...

eLIFE SCIENCES PUBL LTD2021

O-GlcNAcylation of High Mobility Group Box 1 (HMGB1) Alters Its DNA Binding and DNA Damage Processing Activities

Beat Fierz, Harsh Nagpal

Protein O-GlcNAcylation is an essential and dynamic regulator of myriad cellular processes, including DNA replication and repair. Proteomic studies have identified the multifunctional nuclear protein HMGB1 as O-GlcNAcylated, providing a potential link betw ...

AMER CHEMICAL SOC2021

Multiplexed Single-Molecule Experiments Reveal Nucleosome Invasion Dynamics of the Cas9 Genome Editor

Louise Catherine Bryan, Beat Fierz, Kristina Makasheva

Single-molecule measurements provide detailed mechanistic insights into molecular processes, for example in genome regulation where DNA access is controlled by nucleosomes and the chromatin machinery. However, real-time single-molecule observations of nucl ...

AMER CHEMICAL SOC2021

Applying Peptide and Protein Synthesis to Study Post-translational Modifications in Epigenetics and Beyond

Beat Fierz

Epigenetics research focuses on the study of heritable gene regulatory mechanisms that do not involve changes of the DNA sequence. Such mechanisms include post-translational modifications of histone proteins that organize the genome in the nucleus into a n ...

2021

Development of a single-molecule approach to observe ubiquitination dynamics in defined chromatin states

Beat Fierz, Alexandra Teslenko

SPRINGER2021

The Elusive Structure of Centro-Chromatin: Molecular Order or Dynamic Heterogenetity?

Beat Fierz, Harsh Nagpal

The centromere is an essential chromatin domain required for kinetochore recruitment and chromosome segregation in eukaryotes. To perform this role, centro-chromatin adopts a unique structure that provides access to kinetochore proteins and maintains stabi ...

Elsevier2020

Nucleosome Binding by the Lysine Specific Demethylase 1 (LSD1) Enzyme Enables Histone H3 Demethylation

Aurore Marie-France Delachat, Abhinav Dhall, Beat Fierz

The essential human enzyme lysine specific demethylase 1 (LSD1) silences genes by demethylating mono- and dimethylated lysine 4 in histone H3 (H3K4me1/2). Studies of the minimal requirements for LSD1 activity are complicated by the heterogeneity of histone ...

AMER CHEMICAL SOC2020

Torsin ATPases influence chromatin interaction of the Torsin regulator LAP1

Rudolf Hovius, Beat Fierz

The inner nuclear membrane is functionalized by diverse transmembrane proteins that associate with nuclear lamins and/or chromatin. When cells enter mitosis, membrane-chromatin contacts must be broken to allow for proper chromosome segregation; yet how thi ...

2020

Observing protein interaction dynamics to chemically defined chromatin fibers by colocalization single-molecule fluorescence microscopy

Maxime Nicolas Mivelaz, Beat Fierz

In eukaryotic cells, the genome is packaged into chromatin and exists in different states, ranging from open euchromatic regions to highly condensed heterochromatic regions. Chromatin states are highly dynamic and are organized by an interplay of histone p ...

2020

Structural mechanism of cGAS inhibition by the nucleosome

Rudolf Hovius, Simone Cavadini, Beat Fierz, Andrea Ablasser, Sélène-Véronique Glück, Baptiste Claude André Guey, Alexiane Clara Decout, Kristina Makasheva, Pauline Ambre Melenec

The DNA sensor cGAS initiates innate immune responses following microbial infection, cellular stress, and cancer1. Upon activation by double-stranded DNA, cytosolic cGAS produces 2’3’ cyclic GMP-AMP and triggers inflammatory cytokine and type I interferon ...

2020

Chromatin Fiber Invasion and Nucleosome Displacement by the Rap1 Transcription Factor

Rudolf Hovius, Maxime Nicolas Mivelaz, Beat Fierz, Iuliia Boichenko, Anne-Marinette Thi Phuong Hanh Cao

Pioneer transcription factors (pTFs) bind to target sites within compact chromatin, initiating chromatin remodeling and controlling the recruitment of downstream factors. The mechanisms by which pTFs overcome the chromatin barrier are not well understood. ...

2020

BAF restricts cGAS on nuclear DNA to prevent innate immune activation

Beat Fierz, Andrea Ablasser, Mahmut Selman Sakar, Murat Kaynak, Baptiste Claude André Guey, Alexiane Clara Decout, Marilena Wischnewski, Kristina Makasheva

The appearance of DNA in the cytosol is perceived as a danger signal that stimulates potent immune responses through cyclic guanosine monophosphate–adenosine monophosphate synthase (cGAS). How cells regulate the activity of cGAS toward self-DNA and guard a ...

American Association for the Advancement of Science2020

KAP1 is an antiparallel dimer with a functional asymmetry

Didier Trono, Davide Demurtas, Matteo Dal Peraro, Louise Catherine Bryan, Beat Fierz, Pierre-Yves Joseph Laurent Helleboid, Alexandra Styliani Kalantzi, Giulia Fonti, Maria Josefina Marcaida Lopez

KAP1 (KRAB domain-associated protein 1) plays a fundamental role in regulating gene expression in mammalian cells by recruiting different transcription factors and altering the chromatin state. In doing so, KAP1 acts both as a platform for macromolecular i ...

Life Science Alliance, LLC2019

Revealing dynamic chromatin invasion by pioneer transcription factors on the single-molecule scale

Beat Fierz

TAYLOR & FRANCIS INC2019

Gene control with a "twist": Exploring the dynamic chromatin landscape Gene control with a "twist": Exploring the dynamic chromatin landscape

Beat Fierz

SPRINGER2019

Chemical and biophysical methods to explore dynamic mechanisms of chromatin silencing

Beat Fierz, Iuliia Boichenko

Chromatin, the nucleoprotein complex organizing the genome, is central in regulating gene expression and genome organization. Chromatin conformational dynamics, controlled by histone post-translational modifications (PTM) and effector proteins, play a key ...

2019

A Modular Ligation Strategy for Asymmetric Bivalent Nucleosomes Trimethylated at K36 and K27

Nora Guidotti, Beat Fierz, Carolin Christine Lechner, Andreas Linus Bachmann

In nature, individual histones in the same nucleosome can carry identical (symmetric) or different (asymmetric) post-translational modification (PTM) patterns, increasing the combinatorial complexity. Embryonic stem cells exhibit bivalent nucleosomes, some ...

WILEY-V C H VERLAG GMBH2019

"Doubly Orthogonal" Labeling of Peptides and Proteins

Jérôme Waser, Nora Guidotti, Beat Fierz, Romain Gaëtan Tessier, Raphaël Michel Henri Simonet-Davin

Herein, we report a cysteine bioconjugation methodology for the introduction of hypervalent iodine compounds onto biomolecules. Ethynylbenziodoxolones (EBXs) engage thiols in small organic molecules and cysteine-containing peptides and proteins in a fast a ...

2019

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