Ueli Aebi

The Yeast Nucleoporin Nup53p Specifically Interacts with Nic96p and Is Directly Involved in Nuclear Protein Import

Fahrenkrog, Birthe, Hübner, Wolfgang, Mandinova, Anna, Panté, Nelly, Keller, Walter, Aebi, Ueli

The bidirectional nucleocytoplasmic transport of macromolecules is mediated by the nuclear pore complex (NPC) which, in yeast, is composed of ∼30 different proteins (nucleoporins). Pre-embedding...

An autonomous folding unit mediates the assembly of two-stranded coiled coils

Kammerer, Richard A., Schulthess, Therese, Landwehr, Ruth, Lustig, Ariel, Engel, Jürgen, Aebi, Ueli, ...

Subunit oligomerization of many proteins is mediated by coiled-coil domains. Although the basic features contributing to the thermodynamic stability of coiled coils are well understood, the...

Differential Epitope Tagging of Actin in Transformed Drosophila Produces Distinct Effects on Myofibril Assembly and Function of the Indirect Flight Muscle

Brault, Véronique, Sauder, Ursula, Reedy, Mary C., Aebi, Ueli, Schoenenberger, Cora-Ann

We have tested the impact of tags on the structure and function of indirect flight muscle (IFM)-specific Act88F actin by transforming mutant Drosophila melanogaster, which do not express endogenous...

Modular self-assembly of a Y-shaped multiprotein complex from seven nucleoporins

Lutzmann, Malik, Kunze, Ruth, Buerer, Andrea, Aebi, Ueli, Hurt, Ed

Now that it is likely that all yeast nucleoporins are known, one of the ultimate goals is the in vitro assembly of the entire nuclear pore complex from its ∼30 individual components. Here, we...

Conserved segments 1A and 2B of the intermediate filament dimer: their atomic structures and role in filament assembly

Strelkov, Sergei V., Herrmann, Harald, Geisler, Norbert, Wedig, Tatjana, Zimbelmann, Ralf, Aebi, Ueli, ...

Intermediate filaments (IFs) are key components of the cytoskeleton in higher eukaryotic cells. The elementary IF ‘building block’ is an elongated coiled-coil dimer consisting of four consecutive...

Sac3 Is an mRNA Export Factor That Localizes to Cytoplasmic Fibrils of Nuclear Pore Complex

Lei, Elissa P., Stern, Charlene A., Fahrenkrog, Birthe, Krebber, Heike, Moy, Terence I., Aebi, Ueli, ...

In eukaryotes, mRNAs are transcribed in the nucleus and exported to the cytoplasm for translation to occur. Messenger RNAs complexed with proteins referred to as ribonucleoparticles are recognized...

Lamin A/C–dependent Localization of Nesprin-2, a Giant Scaffolder at the Nuclear Envelope

Libotte, Thorsten, Zaim, Hafida, Abraham, Sabu, Padmakumar, V. C., Schneider, Maria, Lu, Wenshu, ...

The vertebrate proteins Nesprin-1 and Nesprin-2 (also referred to as Enaptin and NUANCE) together with ANC-1 of Caenorhabditis elegans and MSP-300 of Drosophila melanogaster belong to a novel family...

Nuclear Actin Extends, with No Contraction in Sight

Pederson, Thoru, Aebi, Ueli

Within the past two years, actin has been implicated in eukaryotic gene transcription by all three classes of RNA polymerase. Moreover, within just the past year, actin has been identified as a...

Dynamic Elastic Modulus of Porcine Articular Cartilage Determined at Two Different Levels of Tissue Organization by Indentation-Type Atomic Force Microscopy

Stolz, Martin, Raiteri, Roberto, Daniels, A. U., VanLandingham, Mark R., Baschong, Werner, Aebi, Ueli

Cartilage stiffness was measured ex vivo at the micrometer and nanometer scales to explore structure-mechanical property relationships at smaller scales than has been done previously. A method was...

Severe muscle disease-causing desmin mutations interfere with in vitro filament assembly at distinct stages

Bär, Harald, Mücke, Norbert, Kostareva, Anna, Sjöberg, Gunnar, Aebi, Ueli, Herrmann, Harald

Desmin is the major intermediate filament (IF) protein of muscle. Recently, mutations of the desmin gene have been reported to cause familial or sporadic forms of human skeletal, as well as cardiac,...

Flexible phenylalanine-glycine nucleoporins as entropic barriers to nucleocytoplasmic transport

Lim, Roderick Y. H., Huang, Ning-Ping, Köser, Joachim, Deng, Jie, Lau, K. H. Aaron, Schwarz-Herion, Kyrill, ...

Natively unfolded phenylalanine-glycine (FG)-repeat domains are alleged to form the physical constituents of the selective barrier-gate in nuclear pore complexes during nucleocytoplasmic transport....

The Yeast Nucleoporin Nup53p Specifically Interacts with Nic96p and Is Directly Involved in Nuclear Protein Import

Fahrenkrog, Birthe, Hübner, Wolfgang, Mandinova, Anna, Panté, Nelly, Keller, Walter, Aebi, Ueli

The bidirectional nucleocytoplasmic transport of macromolecules is mediated by the nuclear pore complex (NPC) which, in yeast, is composed of ∼30 different proteins (nucleoporins). Pre-embedding...

An autonomous folding unit mediates the assembly of two-stranded coiled coils

Kammerer, Richard A., Schulthess, Therese, Landwehr, Ruth, Lustig, Ariel, Engel, Jürgen, Aebi, Ueli, ...

Subunit oligomerization of many proteins is mediated by coiled-coil domains. Although the basic features contributing to the thermodynamic stability of coiled coils are well understood, the...

Differential Epitope Tagging of Actin in Transformed Drosophila Produces Distinct Effects on Myofibril Assembly and Function of the Indirect Flight Muscle

Brault, Véronique, Sauder, Ursula, Reedy, Mary C., Aebi, Ueli, Schoenenberger, Cora-Ann

We have tested the impact of tags on the structure and function of indirect flight muscle (IFM)-specific Act88F actin by transforming mutant Drosophila melanogaster, which do not express endogenous...

Modular self-assembly of a Y-shaped multiprotein complex from seven nucleoporins

Lutzmann, Malik, Kunze, Ruth, Buerer, Andrea, Aebi, Ueli, Hurt, Ed

Now that it is likely that all yeast nucleoporins are known, one of the ultimate goals is the in vitro assembly of the entire nuclear pore complex from its ∼30 individual components. Here, we...

Conserved segments 1A and 2B of the intermediate filament dimer: their atomic structures and role in filament assembly

Strelkov, Sergei V., Herrmann, Harald, Geisler, Norbert, Wedig, Tatjana, Zimbelmann, Ralf, Aebi, Ueli, ...

Intermediate filaments (IFs) are key components of the cytoskeleton in higher eukaryotic cells. The elementary IF ‘building block’ is an elongated coiled-coil dimer consisting of four consecutive...

Sac3 Is an mRNA Export Factor That Localizes to Cytoplasmic Fibrils of Nuclear Pore Complex

Lei, Elissa P., Stern, Charlene A., Fahrenkrog, Birthe, Krebber, Heike, Moy, Terence I., Aebi, Ueli, ...

In eukaryotes, mRNAs are transcribed in the nucleus and exported to the cytoplasm for translation to occur. Messenger RNAs complexed with proteins referred to as ribonucleoparticles are recognized...

Lamin A/C–dependent Localization of Nesprin-2, a Giant Scaffolder at the Nuclear Envelope

Libotte, Thorsten, Zaim, Hafida, Abraham, Sabu, Padmakumar, V. C., Schneider, Maria, Lu, Wenshu, ...

The vertebrate proteins Nesprin-1 and Nesprin-2 (also referred to as Enaptin and NUANCE) together with ANC-1 of Caenorhabditis elegans and MSP-300 of Drosophila melanogaster belong to a novel family...

Severe muscle disease-causing desmin mutations interfere with in vitro filament assembly at distinct stages

Bär, Harald, Mücke, Norbert, Kostareva, Anna, Sjöberg, Gunnar, Aebi, Ueli, Herrmann, Harald

Desmin is the major intermediate filament (IF) protein of muscle. Recently, mutations of the desmin gene have been reported to cause familial or sporadic forms of human skeletal, as well as cardiac,...

Nuclear Actin Extends, with No Contraction in Sight

Pederson, Thoru, Aebi, Ueli

Within the past two years, actin has been implicated in eukaryotic gene transcription by all three classes of RNA polymerase. Moreover, within just the past year, actin has been identified as a...

Dynamic Elastic Modulus of Porcine Articular Cartilage Determined at Two Different Levels of Tissue Organization by Indentation-Type Atomic Force Microscopy

Stolz, Martin, Raiteri, Roberto, Daniels, A. U., VanLandingham, Mark R., Baschong, Werner, Aebi, Ueli

Cartilage stiffness was measured ex vivo at the micrometer and nanometer scales to explore structure-mechanical property relationships at smaller scales than has been done previously. A method was...

Monitoring intermediate filament assembly by small-angle x-ray scattering reveals the molecular architecture of assembly intermediates

Sokolova, Anna V., Kreplak, Laurent, Wedig, Tatjana, Mücke, Norbert, Svergun, Dmitri I., Herrmann, Harald, ...

Intermediate filaments (IFs), along with microtubules, microfilaments, and associated cross-bridging proteins, constitute the cytoskeleton of metazoan cells. While crystallographic data on the dimer...

Ca2+-Dependent Interaction of S100A1 with F1-ATPase Leads to an Increased ATP Content in Cardiomyocytes▿

Boerries, Melanie, Most, Patrick, Gledhill, Jonathan R., Walker, John E., Katus, Hugo A., Koch, Walter J., ...

S100A1, a Ca2+-sensing protein of the EF-hand family that is expressed predominantly in cardiac muscle, plays a pivotal role in cardiac contractility in vitro and in vivo. It has recently been...

Single Hepatitis-B Virus Core Capsid Binding to Individual Nuclear Pore Complexes in HeLa Cells

Lill, Yoriko, Lill, Markus A., Fahrenkrog, Birthe, Schwarz-Herion, Kyrill, Paulillo, Sara, Aebi, Ueli, ...

We investigate the interaction of hepatitis B virus capsids lacking a nuclear localization signal with nuclear pore complexes (NPCs) in permeabilized HeLa cells. Confocal and wide-field optical...

Towards reconciling structure and function in the nuclear pore complex

Lim, Roderick Y.H., Aebi, Ueli, Fahrenkrog, Birthe

The spatial separation between the cytoplasm and the cell nucleus necessitates the continuous exchange of macromolecular cargo across the double-membraned nuclear envelope. Being the only passageway...

A Correlative Analysis of Actin Filament Assembly, Structure, and Dynamics

Steinmetz, Michel O., Goldie, Kenneth N., Aebi, Ueli

The effect of the type of metal ion (i.e., Ca2+, Mg2+, or none) bound to the high-affinity divalent cation binding site (HAS) of actin on filament assembly, structure, and dynamics was investigated...

Molecular Architecture of the Yeast Nuclear Pore Complex: Localization of Nsp1p Subcomplexes

Fahrenkrog, Birthe, Hurt, Eduard C., Aebi, Ueli, Panté, Nelly

The nuclear pore complex (NPC), a supramolecular assembly of ∼100 different proteins (nucleoporins), mediates bidirectional transport of molecules between the cytoplasm and the cell nucleus....

Structure and Assembly of the Nup84p Complex

Siniossoglou, Symeon, Lutzmann, Malik, Santos-Rosa, Helena, Leonard, Kevin, Mueller, Shirley, Aebi, Ueli, ...

The Nup84p complex consists of five nucleoporins (Nup84p, Nup85p, Nup120p, Nup145p-C, and Seh1p) and Sec13p, a bona fide subunit of the COPII coat complex. We show that a pool of green fluorescent...

Laminopathic mutations interfere with the assembly, localization, and dynamics of nuclear lamins

Wiesel, Naama, Mattout, Anna, Melcer, Shai, Melamed-Book, Naomi, Herrmann, Harald, Medalia, Ohad, ...

Lamins are nuclear intermediate filament proteins and the major building blocks of the nuclear lamina. Besides providing nuclear shape and mechanical stability, lamins are required for chromatin...

The highly conserved nuclear lamin Ig-fold binds to PCNA: its role in DNA replication

Shumaker, Dale K., Solimando, Liliana, Sengupta, Kaushik, Shimi, Takeshi, Adam, Stephen A., Grunwald, Antje, ...

This study provides insights into the role of nuclear lamins in DNA replication. Our data demonstrate that the Ig-fold motif located in the lamin C terminus binds directly to proliferating cell...