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27.05.2024

CDK7 kinase activity promotes RNA polymerase II promoter escape by facilitating initiation factor release

Authors Velychko T, Mohammad E, Ferrer-Vicens I, Parfentev I, Werner M, Studniarek C, Schwalb B, Urlaub H, Murphy S, Cramer P, Lidschreiber M Journal Molecular Cell Citation Mol Cell. 2024 May 27:S1097-2765(24)00400-3. Abstract Cyclin-dependent kinase 7 (CDK7), part of the general transcription factor TFIIH, promotes gene transcription by phosphorylating the
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23.05.2024

CaV1.3 channel clusters characterized by live-cell and isolated plasma membrane nanoscopy

Authors Schwenzer N, Teiwes NK, Kohl T, Pohl C, Giller MJ, Lehnart SE, Steinem C Journal Communications Biology Citation Commun Biol. 2024 May 23;7(1):620. Abstract A key player of excitable cells in the heart and brain is the L-type calcium channel CaV1.3. In the heart, it is required for voltage-dependent
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22.05.2024

The molecular machinery for maturation of primary mtDNA transcripts

Authors Vučković A, Freyer C, Wredenberg A, Hillen HS Journal Human Molecular Genetics Citation Hum Mol Genet. 2024 May 22;33(R1):R19-R25. Abstract Human mitochondria harbour a circular, polyploid genome (mtDNA) encoding 11 messenger RNAs (mRNAs), two ribosomal RNAs (rRNAs) and 22 transfer RNAs (tRNAs). Mitochondrial transcription produces long, polycistronic transcripts that
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22.05.2024

Coordinating mitochondrial translation with assembly of the OXPHOS complexes

Authors Kremer LS, Rehling P Journal Human Molecular Genetics Citation Hum Mol Genet. 2024 May 22;33(R1):R47-R52. Abstract The mitochondrial oxidative phosphorylation (OXPHOS) system produces the majority of energy required by cells. Given the mitochondrion’s endosymbiotic origin, the OXPHOS machinery is still under dual genetic control where most OXPHOS subunits are
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21.05.2024

GestaltMatcher Database – A global reference for facial phenotypic variability in rare human diseases

Authors Lesmann H, Hustinx A, Moosa S, Klinkhammer H, Marchi E, Caro P, Abdelrazek IM, Pantel JT, Ten Hagen M, Thong MK, Binti Mazlan RA, Tae SK, Kamphans T, Meiswinkel W, Li JM, Javanmardi B, Knaus A, Uwineza A, Knopp C, Tkemaladze T, Elbracht M, Mattern L, Jamra RA, Velmans
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19.05.2024

Astrocytes adopt a progenitor-like migratory strategy for regeneration in adult brain

Authors Herwerth M, Wyss MT, Schmid NB, Condrau J, Ravotto L, Mateos Melero JM, Kaech A, Bredell G, Thomas C, Stadelmann C, Misgeld T, Bennett JL, Saab AS, Jessberger S, Weber B Journal BioRxiv Citation bioRxiv 2024.05.18.594292. Abstract Mature astrocytes become activated upon non-specific tissue damage and contribute to glial
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16.05.2024

Autophagy preferentially degrades non-fibrillar polyQ aggregates

Authors Zhao DY, Bäuerlein FJB, Saha I, Hartl FU, Baumeister W, Wilfling F Journal Molecular Cell Citation Mol Cell. 2024 May 16;84(10):1980-1994.e8. Abstract Aggregation of proteins containing expanded polyglutamine (polyQ) repeats is the cytopathologic hallmark of a group of dominantly inherited neurodegenerative diseases, including Huntington’s disease (HD). Huntingtin (Htt), the
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12.05.2024

The molecular mechanism of on-demand sterol biosynthesis at organelle contact sites

Authors Zung N, Aravindan N, Boshnakovska A, Valenti R, Preminger N, Jonas F, Yaakov G, Willoughby M, Homberg B, Keller J, Kupervaser M, Dezorella N, Dadosh T, Wolf SG, Itkin M, Malitsky S, Brandis A, Barkai N, Fernandez-Busnadiego R, Reddi A, Rehling P, Rapaport D, Schuldiner M Journal BioRxiv Citation
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10.05.2024

Multimodal binding and inhibition of bacterial ribosomes by the antimicrobial peptides Api137 and Api88

Authors Lauer SM, Reepmeyer M, Berendes O, Klepacki D, Gasse J, Gabrielli S, Grubmüller H, Bock LV, Krizsan A, Nikolay R, Spahn CMT, Hoffmann R Journal Nature Communications Citation Nat Commun 15, 3945 (2024). Abstract Proline-rich antimicrobial peptides (PrAMPs) inhibit bacterial protein biosynthesis by binding to the polypeptide exit tunnel
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08.05.2024

Single-particle Cryo-EM and molecular dynamics simulations: A perfect match.

Authors Bock LV, Igaev M, Grubmüller H Journal Current Opinion in Structural Biology Citation Curr Opin Struct Biol. 2024 May 8;86:102825. Abstract Knowledge of the structure and dynamics of biomolecules is key to understanding the mechanisms underlying their biological functions. Single-particle cryo-electron microscopy (cryo-EM) is a powerful structural biology technique
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