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Eukaryotic cells are packed with many different organelles. In order to respond to environmental cues and coordinate homeostasis, cells need to tightly control the inter-organelle communication. One of the key organelles for the inter-organelle communication is the ER, which is the site of the synthesis and turnover of a major fraction of lipids and membrane proteins. The ER is directly connected to the nucleus by junctions with the outer nuclear membrane. This ER-to-nucleus connectivity is crucial for cellular homeostasis and to supply new lipids and membrane proteins to the nucleus during nuclear growth. However, what the structural nature of the ER-nucleus connection is, and how its size and number is regulated to support the key cellular functions, remains poorly understood. We aim to reveal the structure and function of this major yet poorly characterized inter-organelle connection and uncover the molecular mechanism governing it.
The correlative live imaging with high resolution electron microscopy that we have established previously, allows to visualise intra-cellular structures in situ in human cells in a spatio-temporally-resolved and quantitative manner. By combining this novel correlative imaging technology with quantitative live cell imaging and a microscopy-based loss-of-function screens, we will elucidate systematically how the structure and function of the ER-nucleus connection changes during nuclear growth, identify molecular players regulating them, and reveal how the ER-nucleus connectivity mechanistically controls the ER-to-nucleus communication.
Shotaro was born in Tokyo, Japan. He obtained a PhD in Biophysics at Kyoto University. In 2011, he moved to Germany to carry out postdoctoral work at the European Molecular Biology Laboratory (EMBL). In 2019, he started his own lab at the Max Perutz Labs in Vienna.
A correlative live imaging with electron microscopy was established that allows to examine subcellular structures and protein complexes at nano-meter resolution at specific stages of cell-cycle in a quantitative manner, and therefore can enable to visualize biological processes which have not been able to study due to the limited resolution of conventional microscopy.
The correlative imaging technique was applied to study nuclear envelope (NE) assembly during mitotic exit, and could demonstrate for the first time that the NE forms from highly fenestrated ER sheet whose holes progressively shrink. This finding provides a new approach to explore the ER-NE connectivity and ask how it is regulated to ensure proper ER-nucleus communication.
A quantitative map of nuclear pore assembly reveals two distinct mechanisms.
Otsuka, Shotaro; Tempkin, Jeremy O B; Zhang, Wanlu; Politi, Antonio Z; Rybina, Arina; Hossain, M Julius; Kueblbeck, Moritz; Callegari, Andrea; Koch, Birgit; Morero, Natalia Rosalia; Sali, Andrej; Ellenberg, Jan
A mitotic chromatin phase transition prevents perforation by microtubules.
Schneider, Maximilian W G; Gibson, Bryan A; Otsuka, Shotaro; Spicer, Maximilian F D; Petrovic, Mina; Blaukopf, Claudia; Langer, Christoph C H; Batty, Paul; Nagaraju, Thejaswi; Doolittle, Lynda K; Rosen, Michael K; Gerlich, Daniel W
Postmitotic nuclear pore assembly proceeds by radial dilation of small membrane openings.
Otsuka, Shotaro; Steyer, Anna M; Schorb, Martin; Hériché, Jean-Karim; Hossain, M Julius; Sethi, Suruchi; Kueblbeck, Moritz; Schwab, Yannick; Beck, Martin; Ellenberg, Jan
This is a collaboration project with Daniel Gerlich's group at IMBA.
Project title: “Elucidating the mechanics of mitotic chromosome assembly by light-, electron-, and atomic force microscopy"
The Otsuka Group participates in the special doctoral program 'Signaling Mechanisms in Cellular Homeostasis (SMICH)', funded by the Austrian Science Fund (FWF).
Austrian Academy of Sciences DOC Fellowship: Helena Bragulat Teixidor
Decoding the cis-regulatory information of enhancer sequences
Speaker: Bernardo AlmeidaInstitute: IMP - Stark Lab
From planarians to parasites: unexpected roles for monoamine transmitters
Speaker: Phil NewmarkInstitute: University of Wisconsin-MadisonHost: Elly Tanaka
Title to be announced
Speaker: Jim NaismithInstitute: The Rosalind Franklin Institute, OxfordshireHost: David Haselbach
The Birth and Death of Macromolecular Complexes in Eukaryotic Evolution
Speaker: Berend SnelInstitute: Utrecht UniversityHost: Fred Berger
Probing chromosome mechanics in the interphase nucleus
Speaker: Antoine CoulonInstitute: Institut CurieHost: Anton Goloborodko and Daniel Gerlich
Monday Seminar (Internal)
Speaker: JONASSON Mattias (Tanaka), HOHMANN Ulrich (Brennecke/Plaschka), MANOLOVA Toni (Falk)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
The Earth BioGenome Project: Progress Toward a New Synthesis in Evolution Science
Speaker: Harris LewinInstitute: UC DavisHost: Darrin Schultz and Oleg Simakov
Is cohesin necessary for transcription? Molecular entities of transcriptional dysregulation in the absence of cohesin revealed by analysis of transcription elongation complexes
Speaker: Katsuhiko ShirahigeInstitute: Karolinska InstituteHost: Franz Klein
Monday Seminar (Internal)
Speaker: WU Shuangyang (Dolan), SCARAMUZZA Federico (Tessmar), KROGULL Daniel (Burga)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
The recently discovered ties between teeth and infants in human evolution
Speaker: Leslea HluskoInstitute: CENIEHHost: Nicole Grunstra
Characterisation of Vpr1, a novel protein involved in DSB repair
Speaker: Mustafa AlaaboInstitute: Dept. Chromosome Biology, Univ. ViennaHost: Franz Klein
Title to be announced
Speaker: Roberto CerbinoInstitute: University of ViennaHost: Arthur Sedivy
Marine symbioses fueled by wood
Speaker: Dan DistelInstitute: Ocean Genome Legacy CenterHost: Jillian Petersen
New insights in gene regulation and chromatin folding by enhancers and cohesin
Speaker: Wouter de LaatInstitute: Hubrecht InstituteHost: Christa Bücker
Molecular mechanism analysis involved in mitochondrial sheath formation and spermiation processes using gene-manipulated mice
Speaker: Keisuke ShimadaInstitute: Research Institute for Microbial Diseases, Osaka UniversityHost: Andrea Pauli
Monday Seminar (Internal)
Speaker: JELENIC Stela (Saha), ABDRAKHMANOV Alibek (Dagdas), GALUSKA Philipp (Djinovic)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Title to be announced
Speaker: Christoph KreutzInstitute: University of InnsbruckHost: Georg Kontaxis
Microbial trait-based scaling from single populations to communities with consequences for ecosystem processes
Speaker: Ashish MalikInstitute: University of AberdeenHost: Andreas Richter
How chromosome architecture shapes brain architecture
Speaker: Daniele CanzioInstitute: UCSFHost: Anton Goloborodko
Monday Seminar (Internal)
Speaker: MAYER Rupert (Proteomics Tech Hub), WILLIAMS Thomas (Clausen), GEISMANN Maximilian (Balzarotti)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Comprehensive and quantitative characterization of aneuploidy phenotypes
Speaker: Manuela Sophie KollerInstitute: Dept. Chromosome Biology, Univ. ViennaHost: Chris Campbell
Cellular crosstalk in Neurodevelopmental Disorders
Speaker: Silvia CappelloInstitute: MPI of Psychiatry MunichHost: Jürgen Knoblich
Top down and bottom up exploration of human gut microbial communities
Speaker: Karoline FaustInstitute: KU LeuvenHost: Lucia Fuchslueger
Title to be announced
Speaker: Chris OostenbrinkInstitute: BOKU WienHost: Kristina Djinovic-Carugo
Monday Seminar (Internal)
Speaker: PACHECO FIALLOS Franics Belen (Plaschka), FONTES OLIVEIRA Tiago Manuel (Penninger)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
The Mirage of Biosocial Complexity: Critique and Collaboration Around the Tools of Epigenetics
Speaker: Luca ChiapperinoInstitute: Institute of Social Sciences (ISS), University of LausanneHost: Vienna Open Lab
Monday Seminar (Internal)
Speaker: KHALDIEH Nina (Ameres), LORENZO ORTS Laura (Pauli), ROSS James (Burga)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Title to be announced
Speaker: Samer HattarInstitute: NIHHost: Kristin Tessmar
Monday Seminar (Internal)
Speaker: RAFFL Gerald (Ameres), SAJTOS Bettina (Zuber), LANGER Christoph (Gerlich)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Title to be announced
Speaker: Anshul KundajeInstitute: Stanford UniversityHost: Alex Stark
Monday Seminar (Internal)
Speaker: STEINACKER Thomas (Gerlich), EDER Stephanie (Zimmer), TIKANOVA Polina (Burga)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: SCHELLHAAS Ulla (Plaschka/Ameres), RUSCH Emma (Goloborodko), VULIN Milica (Obenauf)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: RADHAKRISHNA PILLAI Balashankar (Saha), MIGOTTI Mario (Konrat), RÖHNSER Josef (Pauli)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: BELL Caelan (Gerlich), MEREITER Stefan (Penninger), BINDL Michael (Leeb)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: LORBEER Franziska (Stark), MULVEY Hugh (Dolan), PÜHRINGER Florian (Burga)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: HOLZER Elisabeth (Martens), COLOZZA Gabriele (Koo), FALCON CHAVEZ Francisco (Tanaka)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: BLAHA Andreas (Pauli), OKUN Anastasia (Karagöz), JUNG Pauline (Obenauf)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Title to be announced
Speaker: Sir Philip CohenInstitute: University of DundeeHost: Egon Ogris
Monday Seminar (Internal)
Speaker: LICHT-MAYER Simon (Penninger), CAYGILL Samuel (Dolan), ADELMANN Leonie (Raible)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Title to be announced
Speaker: Feng ShaoInstitute: National Institute of Biological Sciences, BeijingHost: Pavel Kovarik
Monday Seminar (Internal)
Speaker: SHUNMUGAM Dhanlakshmi (Baccarini), CECI GINISTRELLI Lavinia (Mendjan), VORLÄNDER Matthias (Plaschka)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Title to be announced
Speaker: Jan LöweInstitute: MRC Laboratory of Molecular BiologyHost: Jan-Michael Peters
Monday Seminar (Internal)
Speaker: KOK Jian Yi (Berger), GROH Roan (Dagdas), SODERHOLM Adrian (Versteeg)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Title to be announced
Speaker: Stephan GruberInstitute: University of LausanneHost: Franz Klein
Title to be announced
Speaker: Lydia FinleyInstitute: Memorial Sloan Kettering Cancer CenterHost: Johannes Zuber
Monday Seminar (Internal)
Speaker: STRAVS Ana (Knoblich), SANCHEZ DE MEDINA HERNANDEZ Victor (Dagdas), HORENKAMP Simone (Tanaka)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: PROTELL I DE MONTSERRAT Julia (Brennecke/Plaschka), NAGUMO WONG Sakurako (Knoblich), CORIC Aida (Tessmar)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Title to be announced
Speaker: Nancy KlecknerInstitute: Harvard UniversityHost: Franz Klein
Title to be announced
Speaker: Vera Gorbunova and Andrei SeluanovInstitute: University of RochesterHost: EDI group at GMI/IMBA/IMP
Monday Seminar (Internal)
Speaker: GRABARCZYK Daniel (Clausen), TAVERINI Katherina (Urban), MANCHENO JUNCOSA Estela (Mendjan)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Title to be announced
Speaker: Edward LemkeInstitute: IMB MainzHost: David Haselbach
Monday Seminar (Internal)
Speaker: ATTRILL Sarah (Dolan), UIJTTEWAAL Esther (Elling), SCIBISZ Grzegorz (Karagöz)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: DOLESCHALL Balint (Knoblich), FENG Sonjie (Bücker), BOURGUET Pierre (Berger)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Title to be announced
Speaker: Rotem SorekInstitute: Weizmann Institute of Science, RehovotHost: Julius Brennecke
Monday Seminar (Internal)
Speaker: KRUMWIEDE Luisa (Gaidt), CASEY Chloe (Dolan), KAPRAL Thomas (Zagrovic)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: KOBAKHIDZE George (Dong), ANGELOPOULOU Eleni (Ellis), PACHANO Tomas (Stark)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Title to be announced
Speaker: Stephan GrillInstitute: MPI of Molecular Cell Biology and GeneticsHost: Clemens Plaschka
Monday Seminar (Internal)
Speaker: RAMIREZ America (Köhler), VÖLKL Isabella (Bücker), HOANG Oi Pui (Technau)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Title to be announced
Speaker: Mounia LaghaInstitute: Institut de Genetique Moleculaire de MontpellierHost: Andrea Pauli
Monday Seminar (Internal)
Speaker: LEITNER Moritz (Martinez), VOGEL Alexander (Yudushkin), KETTEL Paulina (Karagöz)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Title to be announced
Speaker: Martin HetzerInstitute: IST AustriaHost: Jürgen Knoblich
Monday Seminar (Internal)
Speaker: TSAREV Aleksandr (Ameres), FIESELER Charlie (Zimmer), ABESAMIS Kim Ivan (Dong)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Title to be announced
Speaker: Laurent NguyenInstitute: University of LiegeHost: Noelia Urban
Monday Seminar (Internal)
Speaker: HEIDARI KHOEI Heidar (Rivron), KLEIFELD Justus (Urban), ORLIC Lucija (Matos)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Title to be announced
Speaker: Ian HicksonInstitute: University of CopenhagenHost: Joao Matos
Monday Seminar (Internal)
Speaker: SHULKINA Alexandra (Versteeg), GEETHA Sowmya (Jantsch), MADHUSUDHANAN Jalaja (Zimmer)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: KOLLER Manuela (Campbell), GUPTA Ankit (Goloborodko), SCHMÖLLERL Johannes (Zuber)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: MARCHIORI Elisa (Van der Veeken), ACHLEITNER Anja (Martens), FAAS Victoria (Clausen)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: SALEWSKIJ Kirill (Penninger), KIRCHGATTERER Paul (Gaidt), REN Kaike (Otsuka)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: MIHAILOVIC Milica (Karagöz), BELL Lillie (Clausen), TELONI Federico (Gerlich)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: STANKUNAS Edvinas (Köhler), CASEY Alexandra (Dolan), LEV Itamar (Zimmer)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: OBERHUEMER Michael (Leeb), GONAZLEZ ALVARADO Maria (Grade), SCHOLZ Julia (Otsuka)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: AMANN Sascha (Haselbach), KASHKO Nataliia (Matos), BAUER Bernd (Martens)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: LEE Joonsun (Elling), LEYVA GONZALEZ Marco (Tanaka), MILIVOJEV Nadja (Raible)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: GAO Peng (Dagdas), GOGOVA Rebeca (Clausen), PAVLOVA Anzhela (Matos)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: AYALA MUNOZ Farja (Plaschka), VETRANO Pamela (Ramundo), YU Changwei (Brennecke)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: KONSTANTINOU Andri (Obenauf), NAVA GARCIA Marintia (Dagdas), WOLFF Uyen Le Phuong (Jantsch V.)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: HARTMANN Felix (Matos), PASSERA Alessandro (Balzarotti), SANCHEZ BURGOS Laura (Obenauf)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: HODAKOVA Zuzana (Haselbach), MYLARSHCHIKOV Dmitry (Gerlich)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Title to be announced
Speaker: Johannes WalterInstitute: Harvard Medical SchoolHost: Jan-Michael Peters
Monday Seminar (Internal)
Speaker: PIECH Lucas (Leonard), DE LA CONCEPCION Juan Carlos (Dagdas), POPOVA Mariia (Peters)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: GALLI Lucrezia (Tanaka), DIAS Ana Beatriz (Slade), TAKACS Zsuzsanna (Gerlich)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: KNIEST Judith (Haselbach), KELLNER Max (Penninger), BABADEI Olga (Decker)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: BOHAUMILITZKY Lena (Pinheiro), RAIDERS Stephan (Tanaka), PRLESI Ines (Gerlich)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: PITASI Mattia (Leeb), HEINZL Monika (Stark)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: VELETI Lalitha (Pauli), NAAS Julia (Van Haeseler)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: FARAWAY Rupert (Plaschka), GRUNDMANN Lorenz (Haselbach), KLEINWAECHTER Ava (Slade)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: RÖTZER Johannes (Dolan), MIOCIC-STOSIC Fran (Zagrovic), RITSCHKA Birgit (Tanaka)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: PUSHPA BOSE Greeshma (Urban), RAINA Shiviya (Dammermann)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: COUTURIER Jeanne (Jachowicz), PABST Gabriel (Zuber), ROFFAY Chloe (Pinheiro)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: RUSSETT Colleen (Berger), NAJM Ramsey (Knoblich), HOLLAUS David (Gaidt)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: SHARMA Sanskriti (Ellis), JANKOWSKA Julia (Ameres), PAPAREDDY Ranjith (Dagdas)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: MAURER Eric (Peters), BHARDWAJ Vishakha (Schlögelhofer), DIEZMA Laura (Nordborg/Mari-Ordonez)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: GUZMAN PEREZ Sebastian (Martinez), LITTLEBOY Jamie (Knoblich), RIABOV Daria (Plaschka)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: ZEILER Christina (Kovarik), DOCAVO GARCIA Antonio (Jachowicz), Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: ZMAJKOVIC Jakub (Zuber), DEL CHIARO Alessia (Dagdas), ANTONIOLI Sumire (Leonard)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: HUETTER Christiane (Menche), KRACHT Laura (Knoblich), SANDRU Ana Maria (Baccarini)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: BENEDUM Johannes (Slade), KALIS Robert (Zuber), PATEL Rajvi (Matos)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: PROTSENKO Liudmila (Brennecke), SHETTY Kavya (Hein), BASSAT Elad (Tanaka)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs