Concept

Effector (biology)

Publications associées (36)

Tumor-targeted 4-1BB agonists for combination with T cell bispecific antibodies as off-the-shelf therapy

Henning Paul-Julius Stahlberg, Thomas Hofer, Wei Xu

Endogenous costimulatory molecules on T cells such as 4-1BB (CD137) can be leveraged for cancer immunotherapy. Systemic administration of agonistic anti-4-1BB antibodies, although effective preclinically, has not advanced to phase 3 trials because they hav ...

American Association for the Advancement of Science (AAAS)2019

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

Mechanics of Allostery: Contrasting the Induced Fit and Population Shift Scenarios

Matthieu Wyart, Carolina Brito Carvalho dos Santos, Solange Marie Flatt, Stefano Zamuner, Riccardo Ravasio

In allosteric proteins, binding a ligand can affect function at a distant location, for example, by changing the binding affinity of a substrate at the active site. The induced fit and population shift models, which differ by the assumed number of stable c ...

CELL PRESS2019

EspL is essential for virulence and stabilizes EspE, EspF and EspH levels in Mycobacterium tuberculosis

Stewart Cole, Nina Theres Odermatt, Claudia Sala, Andrej Benjak, Paloma Julia Soler Arnedo, Sofia Ulrika Magnusdotter Von Schultz

The ESX-1, type VII, secretion system represents the major virulence determinant of Mycobacterium tuberculosis, one of the most successful intracellular pathogens. Here, by combining genetic and high-throughput approaches, we show that EspL, a protein of 1 ...

PUBLIC LIBRARY SCIENCE2018

Deciphering the chromatin binding mechanisms of human HP1 variants at the single-molecule level

Louise Catherine Bryan

In eukaryotic cells, DNA is tightly packed in the form chromatin. The basic structure of chromatin is a nucleosome composed of 147 bp DNA wrapped around eight histone proteins; two copies of H2A, H2B, H3 and H4. These histone proteins are decorated with pa ...

EPFL2018

Dynamic protein-chromatin interactions in heterochromatin and during the DNA damage response on the single molecule level

Andreas Linus Bachmann

Dynamic regulation of chromatin, a structure consisting of DNA and histone proteins, is mediated through histone post-translational modifications (PTMs) and effector proteins. HP1a and PRC2 are recruited to repressive PTMs (H3K9me3, H3K27me3) and enable he ...

EPFL2018

The nematode Caenorhabditis elegans is an attractive model organism, owing notably to its short life cycle, genetic tractability, and optical transparency facilitating microscopic observation. This thesis deals with the realization of technological tools f ...

EPFL2018

Cryo-EM reconstruction of Type VI secretion system baseplate and sheath distal end

Henning Paul-Julius Stahlberg, Sergey Nazarov

The bacterial Type VI secretion system (T6SS) assembles from three major parts: a membrane complex that spans inner and outer membranes, a baseplate, and a sheath-tube polymer. The baseplate assembles around a tip complex with associated effectors and conn ...

EMBO2017

Single-molecule kinetic analysis of HP1-chromatin binding reveals a dynamic network of histone modification and DNA interactions

Vassily Hatzimanikatis, Georg Fantner, Beat Fierz, Sandrine Madeleine Suzanne Georgeon, Daniel Robert Weilandt, Oliver Hantschel, Louise Catherine Bryan, Pascal Damian Odermatt, Sinan Kilic, Andreas Linus Bachmann, Carolin Christine Lechner

Chromatin recruitment of effector proteins involved in gene regulation depends on multivalent interaction with histone post-translational modifications (PTMs) and structural features of the chromatin fiber. Due to the complex interactions involved, it is c ...

Oxford University Press (OUP)2017

Lysine acetylation stoichiometry and proteomics analyses reveal pathways regulated by sirtuin 1 in human cells

Diego Chiappe

Lysine acetylation is a widespread posttranslational modification affecting many biological pathways. Recent studies indicate that acetylated lysine residues mainly exhibit low acetylation occupancy, but challenges in sample preparation and analysis make i ...

Amer Soc Biochemistry Molecular Biology Inc2017

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