News 2017



eick_decker_2017-_sci_rep_550.100x0.jpeg

The bromodomain protein Brd4 is an epigenetic reader and plays a critical role in the development and maintenance of leukemia. Brd4 binds to acetylated histone tails and activates transcription by recruiting the positive elongation factor P-TEFb. Small molecule inhibitor JQ1 competitively binds the bromodomains of Brd4 and displaces the protein from acetylated ...

|READ MORE|

jung_behr_et_al-2017-scientific_reports_550.100x0.jpeg

Two-component systems are crucial for signal perception and modulation of bacterial behavior. Nevertheless, to date, very few ligands have been identified that directly interact with histidine kinases. The histidine kinase/response regulator system YehU/YehT of Escherichia coli is part of a nutrient-sensing network. Here we demonstrate that this system senses the ...

|READ MORE|

eick_nemec_2017-_pnas_550.100x0.jpeg

The carboxyl-terminal domain (CTD) of the largest subunit of RNA polymerase II (Pol II) orchestrates dynamic recruitment of specific cellular machines during different stages of transcription. Signature phosphorylation patterns of Y1S2P3T4S5P6S7 heptapeptide repeats of the CTD engage specific “readers.” Whereas phospho-Ser5 and phospho-Ser2 marks are ubiquitous, ...

|READ MORE|

jung-sattler-schlundt_et_al-2017-scientific_reports_550.100x0.jpeg

The transmembrane DNA-binding protein CadC of E. coli, a representative of the ToxR-like receptor family, combines input and effector domains for signal sensing and transcriptional activation, respectively, in a single protein, thus representing one of the simplest signalling systems. At acidic pH in a lysine-rich environment, CadC activates the transcription of ...

|READ MORE|

jung-lorenz_et_al_2017_550.100x0.jpeg

Quorum sensing (QS) is a process enabling a bacterial population to communicate via small molecules called autoinducers (AIs). This intercellular communication process allows single cells to synchronize their behavior within a population. The marine bacterium Vibrio harveyi ATCC BAA-1116 channels the information of three AI signals into one QS cascade. Three ...

|READ MORE|

ladurner-nsmb-2017_04_07_550.100x0.jpeg

Chromatin-remodeling enzymes perform the formidable task of reorganizing the structure of a stable macromolecular assembly, the nucleosome. Recently published work demonstrates that the SNF2H chromatin remodeler distorts the histone octamer structure upon binding to the nucleosome, then taps into this induced plasticity to productively achieve nucleosome sliding.
 

|READ MORE|

cipsm_icem_2015_100.100x0.jpg

Das Institut für chemische Epigenetik (ICEM) mit einer Nutzfläche von 3.430 m² und einer Fördersumme von 38,73 Millionen Euro hat eine Förderempfehlung von Seiten des Wissenschaftsrates erhalten.
Das ICEM basiert auf dem CIPSM und wird den Forschungsschwerpunkt der chemischen Epigenetik erforschen.

Der Forschungsbau wird auf dem HighTech Campus ...

|READ MORE|

vothknecht-chigri-mp2017_550.100x0.jpeg

The translocon on the outer membrane of mitochondria (TOM) facilitates the import of nuclear-encoded proteins. The principal machinery of mitochondrial protein transport seems conserved in eukaryotes; however, divergence in the composition and structure of TOM components has been observed between mammals, yeast, and plants. TOM9, the plant homolog of yeast Tom22, ...

|READ MORE|

brauchle_kolbe_chembiochem_2017_550.100x0.jpeg

Mycobacterium tuberculosis (Mtb), the main causative agent of tuberculosis (Tb), has a complex cell envelope which forms an efficient barrier to antibiotics, thus contributing to the challenges of anti-tuberculosis therapy. However, the unique Mtb cell wall can be considered an advantage and be utilized to selectively label Mtb bacteria. Here we introduce three ...

|READ MORE|

feige_nwg-tum-j__biol__chem_-2017-reitberger-jbc_m117_782284_550.100x0.jpeg

Members of the interleukin 12 (IL12) family perform essential functions in immunoregulation by connecting innate and adaptive immunity and are emerging therapeutic targets. They are unique among other interleukins in forming heterodimers that arise from extensive subunit sharing within the family, leading to the production of at least four functionally distinct ...

|READ MORE|

brauchle-vater_scientific_reports_2017_550.100x0.jpeg

Cationic amphiphilic drugs (CADs) comprise a wide variety of different substance classes such as antidepressants, antipsychotics, and antiarrhythmics. It is well recognized that CADs accumulate in certain intracellular compartments leading to specific morphological changes of cells. So far, no adequate technique exists allowing for ultrastructural analysis of CAD ...

|READ MORE|

soll-fpls-08-00168_500.100x0.jpeg

Chloroplasts originated from an endosymbiotic event in which a free-living cyanobacterium was engulfed by an ancestral eukaryotic host. During evolution the majority of the chloroplast genetic information was transferred to the host cell nucleus. As a consequence, proteins formerly encoded by the chloroplast genome are now translated in the cytosol and must be ...

|READ MORE|

konnerth-tischbirek_et_al_journal_of_physiology_2016_onle_500.100x0.jpeg

In vivo two-photon Ca2+ imaging has become an effective approach for the functional analysis of neuronal populations, individual neurons and subcellular neuronal compartments in the intact brain. When imaging individually labelled neurons, depth penetration can often reach up to 1 mm below the cortical surface. However, for densely labelled neuronal populations, ...

|READ MORE|

schotta-nchembio_2282_500.100x0.jpeg

Protein lysine methyltransferases (PKMTs) regulate diverse physiological processes including transcription and the maintenance of genomic integrity. Genetic studies suggest that the PKMTs SUV420H1 and SUV420H2 facilitate proficient nonhomologous end-joining (NHEJ)-directed DNA repair by catalyzing the di- and trimethylation (me2 and me3, respectively) of lysine ...

|READ MORE|

gaul-kremer_et_al-2017-glia_500.100x0.jpeg

Glia play crucial roles in the development and homeostasis of the nervous system. While the GLIA in the Drosophila embryo have been well characterized, their study in the adult nervous system has been limited. Here, we present a detailed description of the glia in the adult nervous system, based on the analysis of some 500 glial drivers we identified within a ...

|READ MORE|

bra_uchle-uhl_acs_nano_2017_500.100x0.jpeg

Advances in the engineering of nanoparticles (NPs), which represent particles of less than 100 nm in one external dimension, led to an increasing utilization of nanomaterials for biomedical purposes. A prerequisite for their use in diagnostic and therapeutic applications, however, is the targeted delivery to the site of injury. Interactions between blood-borne ...

|READ MORE|

jung-fang_et_al-2017-molecular_microbiology_550.100x0.jpg

BceRS and PsdRS are paralogous two-component systems in Bacillus subtilis controlling the response to antimicrobial peptides. In the presence of extracellular bacitracin and nisin, respectively, the two response regulators (RRs) bind their target promoters, PbceA or PpsdA, resulting in a strong up-regulation of target gene expression and ultimately antibiotic ...

|READ MORE|

gulder-greunke_et_al-2017-angewandte_chemie_international_edition_500.100x0.jpeg

Nature provides an inexhaustible diversity of small organic molecules with beautiful molecular architectures that have strong and selective inhibitory activities. However, this tremendous biomedical potential often remains inaccessible, as the structural complexity of natural products can render their synthetic preparation extremely challenging. This problem is ...

|READ MORE|

linser.100x0.jpg

Fibrillar aggregates of Aβ and Tau in the brain are the major hallmarks of Alzheimer’s disease. Most Tau fibers have a twisted appearance but the twist can be variable and even absent. This ambiguity, which has also been associated with different phenotypes of tauopathies, has led to controversial assumptions about fibril constitution, and it is unclear to-date ...

|READ MORE|

zacharias-journal_pone_0170625_500.100x0.jpeg

Protein-protein docking protocols aim to predict the structures of protein-protein complexes based on the structure of individual partners. Docking protocols usually include several steps of sampling, clustering, refinement and re-scoring. The scoring step is one of the bottlenecks in the performance of many state-of-the-art protocols. The performance of scoring ...

|READ MORE|

gaul-bio_020669_full_500.100x0.jpeg

During development, many epithelia are formed by a mesenchymal-epithelial transition (MET). Here, we examine the major stages and underlying mechanisms of MET during blood-brain barrier formation in Drosophila. We show that contact with the basal lamina is essential for the growth of the barrier-forming subperineurial glia (SPG). Septate junctions (SJs), which ...

|READ MORE|

kessler-749_2017_srep39805_integrin_ligands_500.100x0.jpeg

Integrins, a diverse class of heterodimeric cell surface receptors, are key regulators of cell structure and behaviour, affecting cell morphology, proliferation, survival and differentiation. Consequently, mutations in specific integrins, or their deregulated expression, are associated with a variety of diseases. In the last decades, many integrin-specific ...

|READ MORE|

CIPSM Movie
LMUexcellent
TU München
MPG
Helmholtz München
MPI of Neurobiology
MPI of Biochemistry