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22.08.2024

Signatures of hierarchical temporal processing in the mouse visual system

Authors Rudelt L, González Marx D, Spitzner FP, Cramer B, Zierenberg J, Priesemann V. Journal PLoS Computational Biology Citation PLoS Comput Biol. 2024 Aug 22;20(8):e1012355. Abstract A core challenge for the brain is to process information across various timescales. This could be achieved by a hierarchical organization of temporal processing
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22.08.2024

Empirical Optimal Transport under Estimated Costs: Distributional Limits and Statistical Applications

Authors Hundrieser S, Mordant G. Weitkamp CA, Munk A Journal Stochastic Processes and their Applications Citation Stochastic Processes and their Applications 178 (2024) 104462. Abstract Optimal transport (OT) based data analysis is often faced with the issue that the underlying cost function is (partially) unknown. This is addressed in this
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Darstellung der Proteinfaltungshelfer-Komplexe in Bulletform (blau) und Footballform (rot) in ihrer natürlichen Umgebung umringt von einer Vielzahl von verschiedenen Proteinen. Vordergrund: Hochaufgelöste Struktur des Proteinfaltungshelfer-Komplexes im Querschnitt. Im Inneren ist ein zu faltendes Protein sichtbar (gelb). Illustration: Jonathan Wagner, MPI für Biochemie

21.08.2024

Proteinfaltungshelfer in ihrer natürlichen Umgebung

Martinsrieder und Göttinger Wissenschaftler haben Proteinfaltungshelfer, sogenannte Chaperonin-Komplexe, mithilfe der Kryo-Elektronentomographie in ihrer natürlichen Umgebung analysiert.   Mithilfe der Kryo-Elektronentomographie, kurz Kryo-ET, können zelluläre Strukturen in ihrer natürlichen Umgebung sichtbar gemacht und analysiert werden. Forschende vom Max-Planck-Institut für Biochemie (MPIB) in Martinsried bei München und der Universitätsmedizin in Göttingen nutzten
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21.08.2024

Genomic and biological panoramas of non-muscle actinopathies

Authors Di Donato N, NMA Consortium, Thom A, Rump A, Greve JN, Kropp M, Cadiñanos J, Calabro S, Cathey S, Chung B, Cope H, Costales M, Cuvertino S, Dinkel P, Erripi K, Fry AE, Garavelli L, Guan K, Hoffjan S, Janzarik WG, Koenig M, Kreimer I, Kuenzel K, Mancini G,
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21.08.2024

Visualizing chaperonin function in situ by cryo-electron tomography

Authors Wagner J, Carvajal AI, Bracher A, Beck F, Wan W, Bohn S, Körner R, Baumeister W, Fernandez-Busnadiego R, Hartl FU Journal Nature Citation Nature. 2024 Aug 21. Abstract Chaperonins are large barrel-shaped complexes that mediate ATP-dependent protein folding1-3. The bacterial chaperonin GroEL forms juxtaposed rings that bind unfolded protein
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20.08.2024

Variational calculus approach to Zernike polynomials with application to fluorescence correlation spectroscopy

Authors Gligonov I, Enderlein J Journal Biophysical Journal Citation Biophys J. 2024 Aug 19:S0006-3495(24)00557-5. Abstract Zernike polynomials are a sequence of orthogonal polynomials that play a crucial role in optics and, in particular, modeling microscopy systems. Introduced by Frits Zernike in 1934, they are particularly useful in expressing wavefront aberrations
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20.08.2024

Accelerated spike-triggered non-negative matrix factorization reveals coordinated ganglion cell subunit mosaics in the primate retina

Authors Zapp SJ, Khani MH, Schreyer HM, Sridhar S, Ramakrishna V, Krueppel S, Mietsch M, Protti DA, Karamanlis D, Gollisch T Journal eLife Citation eLife13:RP99945. Abstract A standard circuit motif in sensory systems is the pooling of sensory information from an upstream neuronal layer. A downstream neuron thereby collects signals
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19.08.2024

Stochastic tug-of-war among sarcomeres mediates cardiomyocyte response to environmental stiffness

Authors Haertter D, Hauke L, Driehorst T, Nishi K, Zimmermann WH, Schmidt CF Journal eLife Citation eLife 13:RP97321. Abstract Cardiac muscle function emerges from the coordinated contraction of sarcomeres in cardiomyocytes. Sarcomere dynamics are usually inferred from whole-cell or myofibril observations, assuming synchronized, uniform behavior. Here, we investigated how different
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12.08.2024

Morphological correlates of synaptic protein turnover in the mouse brain

Authors Li F, Bahr JN, Bierth FA, Reshetniak S, Tetzlaff C, Fornasiero EF, Wichmann C, Rizzoli SO Journal Life Science Alliance Citation Life Sci Alliance. 2024 Aug 12;7(11):e202402793. Abstract Synaptic proteins need to be replaced regularly, to maintain function and to prevent damage. It is unclear whether this process, known
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12.08.2024

Defective mitochondrial COX1 translation due to loss of COX14 function triggers ROS-induced inflammation in mouse liver

Authors Aich A, Boshnakovska A, Witte S, Gall T, Unthan-Fechner K, Yousefi R, Chowdhury A, Dahal D, Methi A, Kaufmann S, Silbern I, Prochazka J, Nichtova Z, Palkova M, Raishbrook M, Koubkova G, Sedlacek R, Tröder SE, Zevnik B, Riedel D, Michanski S, Möbius W, Ströbel P, Lüchtenborg C, Giavalisco
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