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Protéine kinase A

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Biologie cellulaire
Signalisation cellulaire

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Publications associées (28)

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Primary data for "A role for the carbon source of the cell and protein kinase A in regulating the S. pombe septation initiation network"

Viesturs Simanis, Andrea Krapp, Bastien Mangeat, Özge Uysal Özdemir

The Septation Initiation Network (SIN) is a conserved signal transduction network, which is important for cytokinesis in S. pombe. The SIN component Etd1p is required for association of some SIN proteins with the spindle pole body (SPB) during anaphase and ...

EPFL Infoscience2024

A role for the carbon source of the cell and protein kinase A in regulating the S. pombe septation initiation network

Viesturs Simanis, Andrea Krapp, Bastien Mangeat, Özge Uysal Özdemir

The septation initiation network (SIN) is a conserved signal transduction network, which is important for cytokinesis in Schizosaccharomyces pombe. The SIN component Etd1p is required for association of some SIN proteins with the spindle pole body (SPB) du ...

2024

The role of LRRK2 in lung adenocarcinoma

Lung cancer is the leading cause of cancer-related deaths worldwide and the most common lung cancer subtype is lung adenocarcinoma (LUAD). Frequently mutated genes involve activating mutations in KRAS and loss of function mutations in TP53. LUADs primarily ...

EPFL2024

Structure-function analysis of the cyclic β-1,2-glucan synthase from Agrobacterium tumefaciens

Henning Paul-Julius Stahlberg, Dongchun Ni

The synthesis of complex sugars is a key aspect of microbial biology. Cyclic beta-1,2-glucan (C beta G) is a circular polysaccharide critical for host interactions of many bacteria, including major pathogens of humans (Brucella) and plants (Agrobacterium). ...

Nature Portfolio2024

Structure and regulation of the myotonic dystrophy kinase-related Cdc42-binding kinase

Charlotte Julie Caroline Gehin

Protein kinases of the dystonia myotonica protein kinase (DMPK) family are critical regulators of actomyosin contractility in cells. The DMPK kinase MRCK1 is required for the activation of myosin, leading to the develop-ment of cortical tension, apical con ...

CELL PRESS2023

Towards Uncovering the Mechanisms of Electrophile Sensing and Signaling

Native reactive electrophile species (RES) such as 4-hydroxynonenal (HNE) act as cellular signals through covalent modification of kinetically-privileged electrophile sensor proteins. Research efforts in the field focus mainly on identifying these sensor p ...

EPFL2023

New roles of Bicc1 in cilia formation, cell adhesion, and in adult kidneys

Céline Gagnieux

Bicaudal-C1 (Bicc1), an RNA-Binding protein, is a ciliopathy-associated protein. In development, Bicc1 is necessary for left-right axis specification. Loss of Bicc1 in mice also associates with polycystic kidney development. In human, two hereditary polycy ...

EPFL2023

Metabolic regulation of cytokinesis in Schizosaccharomyces pombe

Özge Uysal Özdemir

All cells need to be able to sense their environment, and adapt their metabolism, growth and cell division appropriately. In this study, I examined the response of Schizosaccharomyces pombe to a change in the carbon source and how that affects cytokinesis. ...

EPFL2022

Primary data for EPFL thesis "Metabolic regulation of cytokinesis in Schizosaccharomyces pombe"

Özge Uysal Özdemir

All cells need to be able to sense their environment, and adapt their metabolism, growth and cell division appropriately. In this study, I examined the response of Schizosaccharomyces pombe to a change in the carbon source and how that affects cytokinesis. ...

EPFL Infoscience2022

Transposon-activated POU5F1B promotes colorectal cancer growth and metastasis

Didier Trono, Laurence Gouzi Abrami, Julien Léonard Duc, Sandra Eloise Kjeldsen, Evaristo Jose Planet Letschert, Alexandre Coudray, Laia Simo Riudalbas, Sagane Dind

The treatment of colorectal cancer (CRC) is an unmet medical need in absence of early diagnosis. Here, upon characterizing cancer-specific transposable element-driven transpochimeric gene transcripts (TcGTs) produced by this tumor in the SYSCOL cohort, we ...

Nature Research2022

AMP-activated Protein Kinase (AMPK): New molecular insights and novel downstream targets

Katyayanee Neopane

AMP-activated Protein Kinase (AMPK) is a central regulator of energy homeostasis and a promising drug target for metabolic disorders. It exists as complexes of three subunits, a catalytic alpha, and two regulatory beta and gamma subunits. The regulation of ...

EPFL2022

Sphingolipids accumulate in aged muscle, and their reduction counteracts sarcopenia

Johan Auwerx, Maroun Bou Sleiman, Davide D'Amico, Tanes Imamura de Lima, Pirkka-Pekka Untamo Laurila, Martin Rainer Wohlwend, Peiling Luan, Qi Wang, Sébastien Robert Victor Herzig

Age-related muscle dysfunction and sarcopenia are major causes of physical incapacitation in older adults and currently lack viable treatment strategies. Here we find that sphingolipids accumulate in mouse skeletal muscle upon aging and that both genetic a ...

2022

Investigation of physiological roles of AMPK-activated protein kinase y3

Philipp Jurijvic Rhein

Clinical trials have shown that direct activators of an evolutionary-conserved metabolic sensor, AMP-activated protein kinase (AMPK), are beneficial in preventing/treating a range of metabolic disorders, including type 2 diabetes. These activators, includi ...

EPFL2021

Gαi1 inhibition mechanism of ATP-bound adenylyl cyclase type 5

Ursula Röthlisberger, Siri Camee van Keulen, Daniele Narzi

Conversion of adenosine triphosphate (ATP) to the second messenger cyclic adenosine monophosphate (cAMP) is an essential reaction mechanism that takes place in eukaryotes, triggering a variety of signal transduction pathways. ATP conversion is catalyzed by ...

2021

The E protein-TCF1 axis controls gamma delta T cell development and effector fate

TCF1 plays a critical role in T lineage commitment and the development of alpha beta lineage T cells, but its role in gamma delta T cell development remains poorly understood. Here, we reveal a regulatory axis where T cell receptor (TCR) signaling controls ...

2021

Receptor-independent modulation of cAMP-dependent protein kinase and protein phosphatase signaling in cardiac myocytes by oxidizing agents

Sonia Donzelli

The contraction and relaxation of the heart is controlled by stimulation of the beta 1-adrenoreceptor (AR) signaling cascade, which leads to activation of cAMP-dependent protein kinase (PKA) and subsequent cardiac protein phosphorylation. Phosphorylation i ...

AMER SOC BIOCHEMISTRY MOLECULAR BIOLOGY INC2020

PHD3 Loss Promotes Exercise Capacity and Fat Oxidation in Skeletal Muscle

Johan Auwerx, Hao Li, Daniel Garcia

Rapid alterations in cellular metabolism allow tissues to maintain homeostasis during changes in energy availability. The central metabolic regulator acetyl-CoA carboxylase 2 (ACC2) is robustly phosphorylated during cellular energy stress by AMP-activated ...

Cell Press2020

The mRNA-Binding Protein HuR Is a Kinetically-Privileged Electrophile Sensor

Yimon Aye, Jesse Poganik, Alexandra Krina Van Hall-Beauvais, Yi Zhao

The key mRNA-binding proteins HuR and AUF1 are reported stress sensors in mammals. Intrigued by recent reports of sensitivity of these proteins to the electrophilic lipid prostaglandin A2 and other redox signals, we here examined their sensing abilities to ...

2020

Allosteric regulation and targeting of Bruton's tyrosine kinase (Btk) in B-cell lymphoma

Daniel Pereira Duarte

Bruton's tyrosine kinase (Btk) is a key component of BCR signaling required for B-cell maturation and activation. Loss-of-function mutations throughout the Btk protein cause human X-linked agammaglobulinemia (XLA), a heritable genetic disorder characterize ...

EPFL2020

Phosphoregulated orthogonal signal transduction in mammalian cells

Orthogonal tools for controlling protein function by post-translational modifications open up new possibilities for protein circuit engineering in synthetic biology. Phosphoregulation is a key mechanism of signal processing in all kingdoms of life, but too ...

Nature Research2020