Conference Program

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J-domain proteins: from molecular mechanisms to diseases

Third International Workshop of Cell Stress Society International (CSSI)

 

Wednesday, April 2nd
18:30 Reception at the Novotel Gdańsk Marina Hotel

 

Thursday, April 3rd
08:30 – 9:30 Session I: Keynote lecture – chair Jaroslaw Marszalek
08:30 Welcome speech by the Rector of the University of Gdansk
08:45 Elizabeth Craig (University of Wisconsin – Madison, USA) – ~ 50 years of Hsp70s and J-domain proteins
09:30 – 10:30 Session II: JDPs in transcriptional regulation – chair Harm Kampinga
09:30 Sebastien Dementin (CNRS-BIP Aix-Marseille University, France) – Towards a novel DnaK-dependent mechanism for the regulation of bacterial gene expression?
10:00 Axel Mogk (Heidelberg University, Germany) – An array of J-domain proteins provide synergistic control of yeast Hsf1 at distinct phases of the heat shock response
10:30 – 11:00 Group photo & Coffee break
11:00 – 13:00 Session III: JDPs in Translation- chair Harm Kampinga
11:00 Sabine Rospert (University of Freiburg, Germany) – Interplay between the components of the yeast ribosome-bound chaperone triad
11:30 David Balchin (The Francis Crick Institute, London, UK) – Chaperone coordination at the translating ribosome
12:00 Bernd Bukau, Koji Ishikawa, Paraskevi Kritsiligkou, Tobias P. Dick, Guenter Kramer (Heidelberg University, Germany) – Profiling of the nascent chain interactome of the ribosome-associated complex RAC reveals role in redox regulation of yeast cells
12:30 Claes Andreasson (Stockholm University, Sweden) – Dedicated chaperone for eEF1A at the ribosome unburdens the Hsp70 system
13:00 – 14:00 Lunch
14:00 – 15:30 Session IV: JDPs in the ER & Mitochondria – 1- chair Pierre Genevaux
14:00 Jeffrey Brodsky (University of Pittsburgh, USA) – The intersection of Hsp40 and protein ubiquitination on decision-making process in the endoplasmic reticulum
14:30 Douglas Cyr (University of North Carolina, USA) – Triage of dominantly toxic membrane proteins by DNAJB12
15:00 Ryo Ushioda and Kasai Ayano (Kyoto Sangyo University, Japan) – ERdj8 orchestrates autophagy by regulating isolation membrane elongation
15:30 – 16:00 Coffee break
16:00 – 17:30 Session V: JDPs in the ER & Mitochondria – 2 – chair Pierre Genevaux
16:00 David Ron (University of Cambridge, UK) – Regulating BiP’s responsiveness to JDP stimulation by its reversible AMPylation/deAMPylation – an update
16:30 Dejana Mokranjac (LMU Munich, Germany)  – The mitochondrial protein import motor
17:00 Christian Munch (University of Frankfurt, Germany) – DNAJA1 as a guardian of mitochondrial proteostasis
17:30 – 19:00 Dinner at the Hotel
19:00 – 20:30 Session VI: JDPs in the ER & Mitochondria – 3- Pierre Genevaux
19:00 Thomas Becker (University of Bonn, Germany) – The function of J-domain proteins in mitochondrial protein biogenesis
19:30 Fabian den Brave (University of Bonn, Germany) – Role of a J-domain protein in the quality control of mitochondrial protein biogenesis
20:00 Jaroslaw Marszalek (University of Gdansk, Poland) – Molecular bases of a shift in client binding specificity revealed by phylogeny based ancestral sequence reconstruction of an Hsp70 specialized in FeS biogenesis
20:30 – 21:00 Topic Discussion -1: JDP classification and domain organization chairs: Rina Rosenzweig/Jaroslaw Marszalek

 

Friday, April 4th
08:30 – 10:30 Session VII: JDP-JDP interactions, disaggregation and entropic pulling – 1- chair Jaroslaw Marszalek
08:30 Matthias Mayer and Veronika Lashkul (Heidelberg University, Germany) – Functional significance of the dimeric state of J-domain proteins
09:00 Chandan Sahi (Indian Institute of Science Education and Research Bhopal, India) – Dosage compensation of Caj1-induced cytotoxicity by Sis1 and Ydj1.
09:30 Pierre Goloubinoff (University of Lausanne, Switzerland) – Hsp110 is boosting HSP70-JDP’s disaggregation activity by super-entropic pulling strokes
10:00 Paolo De Los Rios (Ecole Polytechnique Federale de Lausanne, Switzerland)- Single molecule demonstration of Entropic Pulling
10:30 – 11:00 Coffee break
11:00 – 13:00 Session VIII: JDP-JDP interactions, disaggregation and entropic pulling – 2 – chair Jaroslaw Marszalek
11:00 Krzysztof Liberek (University of Gdansk, Poland) – J-domain proteins and Hsp110 NEF in protein refolding from aggregates
11:30 Anne Wentink (Leiden University, The Netherlands) – Disaggregation of α-synuclein amyloid fibres by the human HSP70 chaperone
12:00 Kate Hyun Lee (University of Toronto, Canada) – ATP-driven remodeling of biomolecular condensates by human molecular chaperones
12:30 Harm Kampinga (University Medical Center Groningen, The Netherlands) – DNAJ involvement in disposal of aggregates
13:00 – 14:00 Lunch
14:00 – 16:00 Session IX: JDP-networks – chair Janine Kirstein
14:00 Gregory Blatch (Notre Dame University, Australia) – The chaperone partnerships of Plasmodium knowlesi, a zoonotic malaria parasite of humans
14:30 Jason Gestwicki  (University of California San Francisco, USA) – Protein-protein interactions with J-domain proteins
15:00 Reut Shalgi (Technion, Israel) – Probing the chaperone network complexity
15:30 Kausik Si (Stowers Institute for Medical Research, USA) – J-domain proteins as a transducer of sensory experiences
16:00 – 16:30 Coffee break
16:30 – 18:00 Session X: Specialized JDP systems – chair Janine Kirstein
16:30 Colin Hammond (University of Liverpool, UK) – DNAJC9 integrates heat shock molecular chaperones into the histone chaperone network
17:00 Janice Braun (University Calgary, Canada) – Cellular Export of DnaJC5.
17:30 Johannes Buchner (Technical University Munich, Germany) – Evolution of JDP dependence in the Hsp90 chaperone system
18:00 Free time  – dinner on your own

 

Saturday, April 5th
08:30 – 10:30 Session XI: JDPs in protein aggregation disseases – 1 – chair Paolo De Los Rios
08:30 Sara Linse (University of Lund, Sweden) – Towards a thermodynamic understanding of solubility enhancement
09:00 Pierre Genevaux (CNRS, Toulouse University, France)  –  Directed evolution of DNAJ towards aggregation-prone peptides
09:30 Bartlomiej Tomiczek (University of Gdansk, Poland) – Phylogeny and ancestral sequence reconstruction support multiple origins of class B JDPs, including those involved in amyloid disaggregation
10:00 Lukasz Joachimiak (University of Texas Southwestern Medical Center, Dallas, USA) – JDP-based regulation of amyloid assembly in neurodegenerative diseases
10:30 – 11:00 Coffee break
11:00 – 13:00 Session XII: JDPs in protein aggregation disseases – 2 – chair Paolo De Los Rios
11:00 Janine Kirstein (Fritz Lipmann Institute, Jena, Germany) – Regulation of the HTT folding landscape by Hsc70, DNAJB1 and Apg
11:30 Michael Cheetham (University Collage London, UK) – DNAJ proteins in ALS/FTD
12:00 Martin Duennwald (University of Western Ontario, London, Canada) – DnaJC7 chaperones ALS-associated protein misfolding and oxidative stress
12:30 Anita Manogaran (Marquette University, USA) – Exploring the role of J domain protein chaperones on the aggregation of Transthyretin using a yeast model.
13:00 – 14:00 Lunch
14:00 – 15:30 Session XIII: JDP mutants and disease – chair Jaroslaw Marszalek
14:00 Conrad Weihl (Washington University, USA). – Pathogenic mechanisms of DNAJB proteins in myopathy and muscular dystrophy
14:30 Rina Rosenzweig (Weizmann Institute of Science, Israel) – Molecular mechanisms of DNAJC12: from structure to disease
15:00 Paul Chapple (Queen Mary University of London, UK) – DNAJ proteins in cerebellar ataxias
15:30 – 16:00 Coffee break
16:00 – 17:00 Session XIV: Conformational landscapes of JDPs – chair Jaroslaw Marszalek
16:00 Alessandro Barducci (CNRS, Montpellier University, France) – Unraveling JDP conformational landscapes: insights from molecular simulations
16:30 Yajun Jiang (Nanjing University, China) – Conformational landscape of G/F-rich region of Hsp40s
17:00 – 18:00 Topic discussion-2: JDPs as druggable targets – targeting JDP-Hsp70 and/or JDP-client interactions – chair Harm Kampinga/Paolo De Los Rios
18:30 – 20:30 Gala Dinner

 

Sunday, April 6th
08:30 Departure

 

 

 

 

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