Loss-of-function mutations in the homotrimeric serine protease HTRA1 cause cerebral vasculopathy. Here, we establish independent approaches to achieve the functional correction of trimer assembly defects. Focusing on the prototypical R274Q mutation, we identify an HTRA1 variant that promotes trimer formation thus restoring enzymatic activity in vitro. Genetic experiments in Htra1R274Q mice further demonstrate that expression of this protein-based corrector in trans is sufficient to stabilize HtrA1-R274Q and restore the proteomic signature of the brain vasculature. An alternative approach employs supramolecular chemical ligands that shift the monomer-trimer equilibrium towards proteolytically active trimers. Moreover, we identify a peptidic ligand that activates HTRA1 monomers. Our findings open perspectives for tailored protein repair strategies.
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Created: 18th Oct 2024 at 11:54
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Public web page: Not specified
Organisms: Mus musculus, Rattus norvegicus, Homo sapiens, Macaca mulatta, Sus scrofa, Danio rerio
Submitter: Rainer Malik
Studies: A TBK1 variant causes autophagolysosomal and motoneuron pathology withou..., A ubiquitin-specific, proximity-based labeling approach for the identifi..., ACSL3 is a novel GABARAPL2 interactor that links ufmylation and lipid dr..., ADAM10-Mediated Ectodomain Shedding Is an Essential Driver of Podocyte D..., ALS-linked loss of Cyclin-F function affects HSP90, AMPK, a Regulator of Metabolism and Autophagy, Is Activated by Lysosomal..., ATG4 family proteins drive phagophore growth independently of the LC3/GA..., An optimized quantitative proteomics method establishes the cell type-re..., Autophagosomal Content Profiling Reveals an LC3C-Dependent Piecemeal Mit..., Autophagosome content profiling using proximity biotinylation proteomics..., Autophagy acts through TRAF3 and RELB to regulate gene expression via an..., Basic Fibroblast Growth Factor 2-Induced Proteome Changes Endorse Lewy B..., Beneficial Effect of ACI-24 Vaccination on Aβ Plaque Pathology and Micro..., Brain injury environment critically influences the connectivity of trans..., C9orf72 protein quality control by UBR5-mediated heterotypic ubiquitin c..., CRISPR-Mediated Induction of Neuron-Enriched Mitochondrial Proteins Boos..., Cell-type-specific profiling of brain mitochondria reveals functional an..., Cellular depletion of major cathepsin proteases reveals their concerted ..., Deciphering sources of PET signals in the tumor microenvironment of glio..., Defining the Adult Neural Stem Cell Niche Proteome Identifies Key Regula..., Development of a Proteomic Workflow for the Identification of Heparan Su..., Distinct molecular profiles of skull bone marrow in health and neurologi..., Excessive local host-graft connectivity in aging and amyloid-loaded brain, Experimental evidence for temporal uncoupling of brain Aβ deposition and..., Fibrillar Aβ triggers microglial proteome alterations and dysfunction in..., Filling the Gaps – A Call for Comprehensive Analysis of Extracellular Ma..., IKKβ binds NLRP3 providing a shortcut to inflammasome activation for rap..., Injury-specific factors in the cerebrospinal fluid regulate astrocyte pl..., Lipid and protein content profiling of isolated native autophagic vesicles, Loss of CLN3 in microglia leads to impaired lipid metabolism and myelin ..., Loss of NPC1 enhances phagocytic uptake and impairs lipid trafficking in..., Lysosomal damage sensing and lysophagy initiation by SPG20-ITCH, Lysosomal targeting of the ABC transporter TAPL is determined by membran..., Mapping autophagosome contents identifies interleukin-7 receptor-alpha a..., Met/HGFR triggers detrimental reactive microglia in TBI, MicroRNAs from extracellular vesicles as a signature for Parkinson's dis..., Multi-omics profiling identifies a deregulated FUS-MAP1B axis in ALS/FTD..., Multiomic ALS signatures highlight subclusters and sex differences sugge..., Neuronal differentiation of LUHMES cells induces substantial changes of ..., Nonvesicular lipid transfer drives myelin growth in the central nervous ..., NrCAM is a marker for substrate-selective activation of ADAM10 in Alzhei..., Pro-inflammatory activation following demyelination is required for myel..., Proteomic Characterization of Ubiquitin Carboxyl-Terminal Hydrolase 19 D..., Proteomic and lipidomic profiling of demyelinating lesions identifies fa..., Proteomic profiling in cerebral amyloid angiopathy reveals an overlap wi..., Proteomics of mouse brain endothelium uncovers dysregulation of vesicula..., Rational correction of pathogenic conformational defects in HTRA1, Reactivated endogenous retroviruses promote protein aggregate spreading, Signal peptide peptidase-like 2c impairs vesicular transport and cleaves..., Signatures of glial activity can be detected in the CSF proteome, Spatial centrosome proteome of human neural cells uncovers disease-relev..., Spatial proteomics in three-dimensional intact specimens, Spatial proteomics reveals secretory pathway disturbances caused by neur..., Systematically defining selective autophagy receptor-specific cargo usin..., Targeting the TCA cycle can ameliorate widespread axonal energy deficien..., The Alzheimer's disease-linked protease BACE1 modulates neuronal IL-6 si..., The Alzheimer's disease-linked protease BACE2 cleaves VEGFR3 and modulat..., The COP9 signalosome reduces neuroinflammation and attenuates ischemic n..., The Hippo network kinase STK38 contributes to protein homeostasis by inh..., The intramembrane protease SPPL2c promotes male germ cell development by..., The pseudoprotease iRhom1 controls ectodomain shedding of membrane prote..., The tetraspanin Tspan15 is an essential subunit of an ADAM10 scissor com..., The ubiquitin-conjugating enzyme UBE2QL1 coordinates lysophagy in respon..., Trnp1 organizes diverse nuclear membrane-less compartments in neural ste..., Ubiquitin profiling of lysophagy identifies actin stabilizer CNN2 as a t...
Assays: Affinity purification coupled with mass spectrometry proteomics (human), Affinity purification coupled with mass spectrometry proteomics (human), Affinity purification coupled with mass spectrometry proteomics (human), Affinity purification coupled with mass spectrometry proteomics (human), Affinity purification coupled with mass spectrometry proteomics (human), Affinity purification coupled with mass spectrometry proteomics (human), Affinity purification coupled with mass spectrometry proteomics (human), Affinity purification coupled with mass spectrometry proteomics (human), Affinity purification coupled with mass spectrometry proteomics (human), Bottom-up proteomics (human), Bottom-up proteomics (mouse), Bottom-up proteomics (mouse), Bottom-up proteomics (mouse), Bottom-up proteomics (mouse), Gel-based experiment (human), Phosphoproteomics / Bottom-up proteomics (mouse), Proximity-proteomics-based autophagosome content profiling (human), SWATH MS (human), SWATH MS (human, mouse), SWATH MS (mouse), Shotgun proteomics (human), Shotgun proteomics (human), Shotgun proteomics (human), Shotgun proteomics (human), Shotgun proteomics (human), Shotgun proteomics (human), Shotgun proteomics (human), Shotgun proteomics (human), Shotgun proteomics (human), Shotgun proteomics (human), Shotgun proteomics (human), Shotgun proteomics (human), Shotgun proteomics (human), Shotgun proteomics (human), Shotgun proteomics (human), Shotgun proteomics (human), Shotgun proteomics (human, mouse), Shotgun proteomics (human, mouse), Shotgun proteomics (human, mouse), Shotgun proteomics (human, mouse), Shotgun proteomics (macaque), Shotgun proteomics (mouse), Shotgun proteomics (mouse), Shotgun proteomics (mouse), Shotgun proteomics (mouse), Shotgun proteomics (mouse), Shotgun proteomics (mouse), Shotgun proteomics (mouse), Shotgun proteomics (mouse), Shotgun proteomics (mouse), Shotgun proteomics (mouse), Shotgun proteomics (mouse), Shotgun proteomics (mouse), Shotgun proteomics (mouse), Shotgun proteomics (mouse), Shotgun proteomics (mouse), Shotgun proteomics (mouse), Shotgun proteomics (mouse), Shotgun proteomics (mouse), Shotgun proteomics (mouse), Shotgun proteomics (mouse), Shotgun proteomics (mouse), Shotgun proteomics (mouse), Shotgun proteomics (mouse), Shotgun proteomics (mouse), Shotgun proteomics (mouse), Shotgun proteomics (rat), Untargeted Proteomics (mouse)
Snapshots: Snapshot 1
Dissection of ventral pial cerebral vessels: Mice were anesthetized with Ketamine (100 mg/kg) and Xylazine (10 mg/kg) and transcardially perfused with 20 ml PBS, followed by 2 ml of 2% Evan’s blue (w/v) prepared in PBS. After brain harvest, pial vessels were collected from the ventral face of the brain with micro forceps under a M205 A dissection microscope (Leica) and snap frozen on dry ice. Lysis of cerebral vessels. Vessels were mixed with 4% (w/v) SDS, 100 mM dithiothreitol, 100 mM Tris–HCl, ...
Submitter: Aditi Methi
Assay type: Proteomics
Technology type: Mass Spectrometry
Investigation: Proteomics (Published)
Organisms: Mus musculus
SOPs: No SOPs
Data files: Rational correction of pathogenic conformationa...
Snapshots: No snapshots
Creators: None
Submitter: Aditi Methi
Investigations: Proteomics (Published)
Studies: Rational correction of pathogenic conformationa...
Assays: Shotgun proteomics (mouse)
Abstract (Expand)
Authors: Nathalie Beaufort, Linda Ingendahl, Melisa Merdanovic, Andree Schmidt, David Podlesainski, Tim Richter, Thorben Neumann, Michael Kuszner, Ingrid R Vetter, Patricia Stege, Steven G Burston, Anto Filipovic, Yasser B Ruiz-Blanco, Kenny Bravo-Rodriguez, Joel Mieres-Perez, Christine Beuck, Stephan Uebel, Monika Zobawa, Jasmin Schillinger, Rainer Malik, Katalin Todorov-Völgyi, Juliana Rey, Annabell Roberti, Birte Hagemeier, Benedikt Wefers, Stephan A Müller, Wolfgang Wurst, Elsa Sanchez-Garcia, Alexander Zimmermann, Xiao-Yu Hu, Tim Clausen, Robert Huber, Stefan F Lichtenthaler, Carsten Schmuck, Michael Giese, Markus Kaiser, Michael Ehrmann, Martin Dichgans
Date Published: 16th Jul 2024
Publication Type: Journal