Eukaryotes store their genetic information in the nucleus which creates a logistical problem for these cells. To regulate the expression of genes and utilize the products of gene expression, molecules must be able to pass through the thick, double layer nuclear envelope. Nuclear pore complexes (NPCs) provide such gateways. The nuclear envelope of a typical mammalian cell contains hundreds to thousands of NPCs, with each of them capable of transporting up to a thousand macromolecules per second in out and out of the nucleus. “Recently, major progress has been made in understanding the structure and architecture of NPCs”, says lead author of the study Jakub Cibulka, who is currently a Postdoctoral researcher at the Masaryk University in Brno (Czech Republic). “However, an important component of the NPC, the nuclear pore basket, has been challenging to study because of its instability and structural flexibility, thus it has remained largely unexplored”.
Protruding from the NPC into the nucleus and resembling a basketball basket, the nuclear pore basket shows remarkable flexibility. When huge particles are transported through the pore, the basket can extend itself and then collapse back again, just as the net ripples with a basketball as it drops through the hoop. Scientists have long tried to understand how the nuclear basket can achieve this, but its structural fragility prohibited its reconstitution. “The basket is extremely unstable and is mostly formed by disordered or very large proteins that are difficult to purify”, explains Jakub Cibulka. “Due to its flexibility, it was also challenging to study it with electron microscopy”. Previous work in the Köhler lab, however, had discovered that the basket is directly tethered to the nuclear envelope by two proteins, Nup1 and Nup60. The scientists reasoned that the missing link was, in fact, the natural environment of the basket - the inner nuclear membrane.
To reconstitute the basket on a membrane the scientists took a reductionist approach, visualizing the assembly of key components of the basket complex on synthetic membranes by fluorescence microscopy. With this ‘visual biochemistry’ approach they studied the hierarchical assembly of the basket scaffold from purified proteins. Intriguingly, Nup60, an intrinsically disordered FG-repeat containing protein, contains an array of so called short linear motifs (SLiMs) that bind to both the membrane and other proteins of the basket. Nup60 therefore acts like a suspension cable on which the basket is tethered to the membrane and the proteins of the basket are tied together. “We believe that by cross-linking structured components of the basket, Nup60 expands its conformational plasticity, which could explain the observed flexibility of the basket”, says Jakub Cibulka.
With the nuclear membrane now taking center stage, the scientists also want to understand the formation of nuclear pores. The process of remodeling the envelope to create a proteinaceous pore that can regulate nucleocytoplasmic transport is poorly understood. “NPCs are constantly being assembled and disassembled in our cells”, explains Jakub Cibulka. “It is still surprising to me that cells can actually form these highly complex structures in a relatively short time without disturbing cellular functions”. By incorporating membranes and additional NPC proteins, the scientists now hope to be able to reconstitute the early stages of nuclear pore formation.
Publication:
Jakub Cibulka, Fabio Bisaccia, Katarina Radisavljević, Ricardo M. Gudino Carrillo, Alwin Köhler: Assembly principle of a membrane-anchored nuclear pore basket scaffold. Science Advances 2022
Dissection of the Function and Deposition of the histone variant H2A.W in Arabidopsis thaliana
Speaker: Anna SchmückerInstitute: GMI - Berger Lab
Monday Seminar (Internal)
Speaker: LOUBIERE Vincent (Stark), STANKUNAS Edvinas (Köhler)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
How cohesin organizes the genome
Speaker: Jan-Michael PetersInstitute: IMP
Virus-host strategies to gain the upper hand during infections
Speaker: Gus VersteegInstitute: Max Perutz Labs
Leveraging the patient as the model to dissect and target metastasis
Speaker: Karuna GaneshInstitute: Sloan Kettering InstituteHost: Anna Obenauf
Mechanism of MCM helicase loading and regulation by CDK revealed by cryo-EM
Speaker: Tom MillerInstitute: University of CopenhagenHost: Clemens Plaschka
Life at Nature Genetics: what we do, how scientific publishing works, and how I got here
Speaker: Michael FletcherInstitute: Editor at Nature GeneticsHost: Alex Stark
Long-term single-cell quantification: New tools for old questions
Speaker: Timm SchroederInstitute: ETH ZurichHost: Manuela Baccarini
Cell competition: a paradigm to understand growth control and heterogeneity in complex tissues
Speaker: Stephanie EllisInstitute: Max Perutz Labs
Title to be announced
Speaker: Noelia UrbanInstitute: IMBA
Monday Seminar (Internal)
Speaker: LEYVA GONZALEZ Marco (Tanaka), MILJKOVIC Frane (Köhler), PINTER Theresa (Busslinger)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Illuminating protein degradation by the 26S proteasome and its regulation by ubiquitin
Speaker: Andreas MartinInstitute: University of California, BerkeleyHost: David Haselbach
Cryo-EM reveals a structural diversity of bioenergetic complexes
Speaker: Alexey AmuntsInstitute: Science for Life Laboratory, Stockholm UniversityHost: Silvia Ramundo
Monday Seminar (Internal)
Speaker: SCHOLZ Julia (Otsuka), BAUER Bernd (Martens)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Global Views of Mammalian Development
Speaker: Jay ShendureInstitute: University of WashingtonHost: Alex Stark
Monday Seminar (Internal)
Speaker: ALMEIDA Bernardo (Stark), MILIVOJEV Nadja (Raible), HOLCIK Laurenz (Von Haeseler)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: IGOLKINA Anna (Nordborg), KRAMMER Teresa (Tanaka), AMANN Sascha Josef (Haselbach)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
European Worm Meeting 2022
We cordially invite you to the 2022 European Worm Meeting (EWM) taking place in Vienna, July 27-30. The meeting is hosted by the University of Vienna.
Monday Seminar (Internal)
Speaker: SCHMIDT Clara (Mendjan), GOGOVA Rebeca (Clausen), SAAD RODRIGUES Carolina (Schlögelhofer)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: YU Changwei (Brennecke), HAENDELER Simon (Von Haeseler), PASSERA Alessandro (Balzarotti)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: SEONG Jinwoo (Rivron), NAVA GARCIA Marintia Mayola (Dagdas), DENEKE Victoria (Pauli)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Title to be announced
Speaker: Xin ChenInstitute: Johns Hopkins UniversityHost: Fred Berger
Monday Seminar (Internal)
Speaker: KELLNER Max Josef (Penninger), LEITNER Marie-Christin (Mendjan), TERIYAPIROM Isaree (Koo)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Title to be announced
Speaker: Mark DawsonInstitute: Peter MacCallum Cancer CentreHost: Johannes Zuber
Monday Seminar (Internal)
Speaker: HOLZMANN Viktoria (Rivron), LEV Itamar (Zimmer), HODAKOVA Zuzana (Haselbach)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Title to be announced
Speaker: Dominique BergmannInstitute: Stanford UniversityHost: Liam Dolan
Monday Seminar (Internal)
Speaker: BABADEI Olga (Decker), OTSUKI Leo (Tanaka), AYALA MUNOZ Farja (Plaschka)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Title to be announced
Speaker: Yves BarralInstitute: ETH ZurichHost: Shotaro Otsuka
Monday Seminar (Internal)
Speaker: TAKACS Zsuzsanna (Gerlich), DE LA CONCEPCION Juan Carlos (Dagdas), FEDL Anna (Busslinger)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Title to be announced
Speaker: Sophie PetropoulosInstitute: Karolinska InstitutetHost: Nicolas Rivron
Title to be announced
Speaker: Benoit BruneauInstitute: Gladstone InstitutesHost: Sasha Mendjan
Monday Seminar (Internal)
Speaker: GALLI Lucrezia (Tanaka), HORN Sabrina (Peters), JACOBS Jelle (Stark)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Title to be announced
Speaker: Richard FlavellInstitute: Yale University School of MedicineHost: Meinrad Busslinger
Title to be announced
Speaker: Bernd BukauInstitute: ZMBHHost: Elif Karagäz
Monday Seminar (Internal)
Speaker: POPOVA Mariia (Peters), RITSCHKA Birgit (Tanaka), DOMBEY Rodolphe (Mari-Ordonez)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: INCARBONE Marco (Mittelsten Scheid), GRUNDMANN Lorenz (Haselbach), NEMCKO Filip (Stark)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: TELONI Federico (Gerlich), WALLNER Eva-Sophie (Dolan), PUSHPA BOSE Greeshma (Urban)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: LIU Haijun (Nordborg), NAVALAYE Tsimafei (Ameres), NAAS Julia (Von Haeseler)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: CHUGUNOVA Anastasia (Pauli), RÖTZER Johannes (Dolan), JONSSON Gustav (Penninger)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: KLAUS Loni (Stark), BENEDUM Johannes (Slade), LITTLEBOY Jamie (Knoblich)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Title to be announced
Speaker: Daniel MucidaInstitute: Rockefeller UniversityHost: Meinrad Busslinger
Monday Seminar (Internal)
Speaker: ANTONIOLI Sumire (Leonard), LI Chong (Knoblich), PABST Gabriel (Zuber)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Title to be announced
Speaker: Lacra BintuInstitute: Stanford UniversityHost: Alex Stark
Monday Seminar (Internal)
Speaker: DIEZMA Laura (Nordborg/Mari-Ordonez), GHOSH Dipannita (Grade), PATEL Rajvi (Matos)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Title to be annouced
Speaker: Adele MarstonInstitute: Wellcome Centre Cell Biology, University of EdinburghHost: Daniel Gerlich, Joao Matos
Monday Seminar (Internal)
Speaker: KORDIC Darja (Clausen), DEIBER Sebastian (Dolan), GEHRE Maja (Brennecke)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: ZMAJKOVIC Jakub (Zuber), MAURER Eric (Peters), NOGALES MORAL Adrian (Köhler)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: HUETTER Christiane (Menche), BASSAT Elad (Tanaka), PETRZILEK Jan (Ameres)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: KALIS Robert (Zuber), NAJM Ramsey (Knoblich), GEROCZ Emoke (Gerlich)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: AUGUSTO Pedro (Zimmer), POLISSENI Claudio (Tanaka), ELEWAUT Anais (Obenauf)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: GUO Pin (Dolan), DAO Pauline (Tessmar), JAVALI Alok(Rivron)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: STUART Hannah (Tanaka), KORESHOVA Alevtina (Burga), ZHAN Ni (Dagdas)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: CRONIN Shona (Obenauf), KANNO Tatsuo (Berger), PACHINGER Claudia (Dammermann)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: SHUKLA Vikas (Berger), RODRIGUEZ TERRONES Diego (Tanaka), WIDEN Sonya (Burga)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: VOICHEK Yoav (Norborg), SESTINI Giovanni (Rivron), PETROULAKI Vasiliki (Matos)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: BRUNNER Hanna (Haselbach), FRIDRICH Arie (Berger), AKULOVA Vasilina (Swarts)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: DE SANTIS Martina (Rivron), BUENDIA Daniel (Mari-Ordonez), VISANPATTANASIN Supapat (Plaschka)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: VOJTEK Matus (Stark), LEHMANN Christian (Knoblich), LEE Du-Hwa (Belkhadir)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: SPICER Maximilian (Gerlich), ESTIVILL I CAPAAROS Guillem (Obenauf), MURPHY Paul (Clausen)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: JÄGER Christina (Van der Veeken), PRADHAN Saurabh (Rivron), RAFANEL Baptiste (Brennecke)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: BELACIC Katarina (Haselbach), HARVEY Zachary (Berger), MILOJKOVIC Lidija (Urban)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: GOMEZ SEGALAS Alba (Balzarotti), KOLESNIKOVA Sofia (Gerlich), HANDLER Dominik (Brennecke)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: BAUCELLS Julia (Dammermann), PANAROTTO-PERICLES Melanie (Peters), VOICHEK Maya Shinan (Brennecke)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: DMITRIEV Vladimir (Goloborodko), HISANAGA Tetsuya (Berger), KHALDIEH Nina (Ameres)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: SOMMER Theresa (Rivron), SHIRZADIAN YAZD Mehrta (Balzarotti), VERTESY Abel (Knoblich)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: POLIKARPOVA Anastasia (Tanaka), CHAKRABORTY Oisorjo (Grade), CORSI Flavia (Goloborodko)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: FESSELET Jeanne (Kovarik), KHAURATOVIC Uladzislava (Matos/Golobordko), SHEN Jingyi (Obenauf)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: PERNEBRINK Mattias (Tanaka), HOHMANN Ulrich (Brennecke/Plaschka), MANOLOVA Toni (Falk)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: WU Shuangyang (Dolan), SCARAMUZZA Federico (Tessmar), KROGULL Daniel (Burga)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: HEIDARI KHOEI Heidar (Rivron), BELL Caelan (Gerlich), GALUSKA Philipp (Djinovic)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: ABDRAKHMANOV Alibek (Dagdas), WILLIAMS Thomas (Clausen), GEISMANN Maximilian (Balzarotti)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: JELENIC Stela (Saha), PACHECO FIALLOS Franics Belen (Plaschka), FONTES OLIVEIRA Tiago Manuel (Penninger)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: NAGUMO WONG Sakurako (Knoblich), LORENZO ORTS Laura (Pauli), ROSS James (Burga)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: RAFFL Gerald (Ameres), SAJTOS Bettina (Zuber), ISHIHARA Keisuke (Tanaka)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
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), CLAVEL Marion (Dagdas)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: RADHAKRISHNA PILLAI Balashankar (Saha), ADELMANN Leonie (Raible), BLAHA Andreas (Pauli)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: VULIN Milica (Obenauf), 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: RÖHSNER Josef (Pauli), OKUN Anastasia (Karagöz), JUNG Pauline (Obenauf)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: LICHT-MAYER Simon (Penninger), CAYGILL Samuel (Dolan), MIGOTTI Mario (Konrat)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: SHUNMUGAM Dhanlakshmi (Baccarini), CECI GINISTRELLI Lavinia (Mendjan), VORLÄNDER Matthias (Plaschka)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: KOK Jian Yi (Berger), HUMER Theresa (Pauli), SODERHOLM Adrian (Versteeg)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: STRAVS Ana (Knoblich), SANCHEZ DE MEDINA HERNANDEZ Victor (Dagdas), KRUMWIEDE Luisa (Gaidt)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: TAVERINI Katherina (Urban), SHETTY Kavya Krishna (Stark), CORIC Aida (Tessmar)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: GRABARCZYK Daniel (Clausen), PROTELL I DE MONTSERRAT Julia (Brennecke/Plaschka), MANCHENO JUNCOSA Estela (Mendjan)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
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
Monday Seminar (Internal)
Speaker: HORENKAMP Simone (Tanaka), 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
Monday Seminar (Internal)
Speaker: RAMIREZ America (Köhler), VÖLKL Isabella (Bücker), HOANG Oi Pui (Technau)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: LEITNER Moritz (Martinez), VOGEL Alexander (Yudushkin), KETTEL Paulina (Karagöz)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: TSAREV Aleksandr (Ameres), FIESELER Charlie (Zimmer), ABESAMIS Kim Ivan (Dong)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
Monday Seminar (Internal)
Speaker: STREUBEL Susanna (Dolan), KLEIFELD Justus (Urban), ORLIC Lucija (Matos)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
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)Institute: Open only to IMP/IMBA/GMI/Max Perutz Labs
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