- Journal article
Authors : Sharma, Deepak; Zagore, Leah L; Brister, Matthew M (2020) - Gene expression in higher eukaryotic cells orchestrates interactions between thousands of RNA binding proteins (RBPs) and tens of thousands of RNAs 1. The kinetics by which RBPs bind to and dissociate from their RNA sites are critical for the coordination of cellular RNA-protein interactions 2. However, these kinetics were experimentally inaccessible in cells. Here we show that time-resolved RNA-protein crosslinking with a pulsed femtosecond UV laser, followe...
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- Journal article
Authors : Lloyd, Jonathan T; McLaughlin, Kyle; Lubula, Mulu Y (2020) - Bromodomains are chromatin reader modules that recognize acetylated lysine. Different bromodomains exhibit a preference for specific patterns of lysine acetylation marks on core and variant histone proteins, however, the functional relationships that exist between histone acetyllysine ligands and bromodomain recognition remain poorly understood. In this study, we examined the ligand specificity of the ATAD2B bromodomain and compared it to its closely related paralog in ...
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- Journal article
Authors : Obi, Juliet O; Lubula, Mulu Y; Cornilescu, Gabriel (2020) - Bromodomain-containing proteins are often part of chromatin-modifying complexes, and their activity can lead to altered expression of genes that drive cancer, inflammation and neurological disorders in humans. Bromodomain-PHD finger protein 1 (BRPF1) is part of the MOZ (monocytic leukemic zinc-finger protein) HAT (histone acetyltransferase) complex, which is associated with chromosomal translocations known to contribute to the development of acute myeloid leukemia (AML). BRPF1&#...
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- Journal article
Authors : Deme, Justin C; Johnson, Steven; Vickery, Owen (2020) - The bacterial flagellum is the proto-typical protein nanomachine and comprises a rotating helical propeller attached to a membrane-embedded motor complex1. The motor consists of a central rotor surround by stator units that couple ion flow across the cytoplasmic membrane to torque generation. Here we present the structures of stator complexes from multiple bacterial species, allowing interpretation of the extensive body of data on stator mechanism. The struct...
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- Journal article
Authors : Newman, Joseph A; Gavard, Angeline E; Lie, Simon (2020) - Werner syndrome helicase (WRN) plays important roles in multiple pathways of DNA repair and the maintenance of genome integrity. Recently, loss of WRN was identified as a strong synthetic lethal interaction for microsatellite instable (MSI) cancers making WRN a promising drug target. Yet, structural information for the helicase domain is lacking, which prevents structure-based design of drug molecules. In this study, we show that ATP binding and hydrolys...
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- Journal article
Authors : Rius, Bibiana; Mesgarzadeh, Jaleh S; Romine, Isabelle C (2020) - The plasma cell secretion and toxic aggregation of amyloidogenic immunoglobulin light chains (LCs) causes proteotoxicity in Light Chain Amyloidosis (AL). We recently identified endoplasmic reticulum (ER) proteostasis regulators such as compound 147 that reduce secretion and aggregation of LCs implicated in AL (Plate, Cooley et al., 2016). Compound 147 promotes adaptive ER proteostasis remodeling through a mechanism involving covalent modification of multiple protein disulfi...
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- Journal article
Authors : Kostyn, Kamil; Boba, Aleksandra; Kostyn, Anna (2020) - Introduction of rat tyrosine hydroxylase gene to potato disturbs catecholamine synthesis, causes oxidative stress and activates antioxidant response.
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- Journal article
Authors : Kash, Kazutoshi; Stojkovič, Gorazd; Ruiz, Cristina Velázquez (2020) - Replication forks often stall at damaged DNA. Resumption of DNA synthesis can occur by replacement of the replicative DNA polymerase with specialized, error-prone translesion DNA polymerases (TLS), that have higher tolerance for damaged substrates. Several of these polymerases (Polλ, Polη and PrimPol) are stimulated in DNA synthesis through interaction with PolDIP2, however the mechanism of this PolDIP2-dependent stimulation is still unclear. Here we show that Pri...
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- Journal article
Authors : Walter, Justin D; Hutter, Cedric A.J; Zimmermann, Iwan (2020) - The COVID-19 pandemic, caused by the novel coronavirus SARS-CoV-2, has resulted in a global health and economic crisis of unprecedented scale. The high transmissibility of SARS-CoV-2, combined with a lack of population immunity and prevalence of severe clinical outcomes, urges the rapid development of effective therapeutic countermeasures. Here, we report the generation of synthetic nanobodies, known as sybodies, against the receptor-binding domain (RBD) of SARS-CoV-2....
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- Journal article
Authors : Koopman, Margreet B (2020) - Alzheimer’s Disease is driven by protein aggregation and is characterised by accumulation of Tau protein into neurofibrillary tangles. In healthy neurons the cellular protein quality control is successfully in charge of protein folding, which raises the question to which extent this control is disturbed in disease. Here we describe that brain cells in Alzheimer’s Disease show very specific derailment of the protein quality control network. We performed a...
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