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Felix Kraus

@sauerkrausi.bsky.social
106 followers 271 following 12 posts

Quantitative cell biologist working on proteomics, organelle QC and CNS malignancies @bcchresearch.bsky.social. Quantify everything except my cat's chaos. She's orange. 🐈 Alumni: @harvardmed.bsky.social @monashuniversity.bsky.social @lmu.de

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Reposted by Felix Kraus
The Science of Parkinson's @scienceofpd.bsky.social · 30/09/2026
Researchers report that Protein phosphatase 1 H (PPM1H) deficiency significantly⬆️the distance between aSyn & the presynaptic marker Bassoon, indicating displacement of aSyn away from the presynapse; LRRK2 kinase inhibition rescued the phenotype link.springer.com/article/10.1...
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Reposted by Felix Kraus
The Science of Parkinson's @scienceofpd.bsky.social · 30/09/2026
New review provides an overview of mechanisms of lysosomal dysfunction in neurodegenerative conditions, particularly #Parkinsons, #Alzheimers, frontotemporal dementia & amyotrophic lateral sclerosis #ALS www.nature.com/articles/s41...
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Reposted by Felix Kraus
Cell Biology J-Club @cellclub.bsky.social · 30/09/2026
A TBK1/ULK1 signalling axis couples lysosomal stress to TFEB activation www.nature.com/articles/s41...
nature.com
A TBK1/ULK1 signalling axis couples lysosomal stress to TFEB activation - Nature
Proteomic and phosphoproteomic analyses of lysosomes identify a nutrient-independent regulatory arm of mTORC1 signalling that mediates lysosomal adaptation to stress and whose deregulation underl...
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Reposted by Felix Kraus
Mathilda Lennartz @mathilda95.bsky.social · 30/09/2026
UPDATE!: I am absolutely stoked that the second paper of my PhD is now out in @natcellbio.nature.com :D. We combined lipid imaging, STED microscopy, and mathematical modelling in a super cool team effort to quantify lipid partitioning inside clathrin-coated pits. www.nature.com/articles/s41....
nature.com
Quantification of lipid sorting during clathrin-mediated endocytosis - Nature Cell Biology
Lennartz et al. evaluate lipid enrichment in clathrin-coated pits and observe that the differential lipid partitioning into clathrin-coated pits is largely driven by the lipid asymmetry of the plasma ...
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Reposted by Felix Kraus
bioRxiv Neuroscience @biorxiv-neursci.bsky.social · 28/09/2026
Plasma Extracellular Vesicle Lipidomics Reveals an SMPD1-Driven Sphingomyelin Salvage Pathway Collapse in Parkinson's Disease www.biorxiv.org/content/10.64898/20…
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Reposted by Felix Kraus
The Science of Parkinson's @scienceofpd.bsky.social · 25/09/2026
The PsychAD cohort included diffuse Lewy body disease, vascular dementia, tauopathy, FTD, schizophrenia, & bipolar disorder. The study replicated findings that the H1 MAPT haplotype is associated with PD susceptibility, & observed that the H1H1 genotype increases PD risk
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Reposted by Felix Kraus
Cell Biology J-Club @cellclub.bsky.social · 25/09/2026
In situ visualization of autophagy reveals the presence of vesicles at the expanding phagophore rim journals.biologists.com/jcs/article/...
journals.biologists.com
In situ visualization of autophagy reveals the presence of vesicles at the expanding phagophore rim
The autophagy core machinery mediates the enclosure of cytosolic cargo destined for degradation in the lysosome. The Atg9-Atg2-Atg18 complex coordinates phagophore expansion via directed lipid transfe...
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Reposted by Felix Kraus
Nature Reviews Genetics @natrevgenet.nature.com · 15/01/2026
Proteoform medicine: characterizing and targeting protein forms in human disease go.nature.com/45P6t8z #Review by Jennifer A. Korchak, S. Stephen Yi, Neil L. Kelleher (@nlkproteomics.bsky.social), Nidhi Sahni & Gloria M. Sheynkman #proteomics
go.nature.com
Proteoform medicine: characterizing and targeting protein forms in human disease - Nature Reviews Genetics
Proteoforms are the diverse protein molecules produced from a single gene whose primary sequence and composition can be diversified by genetic, transcriptomic, translational and post-translational var...
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Reposted by Felix Kraus
David Drubin @drubin.bsky.social · 22/09/2026
In a new preprint we provide evidence that biophysical properties of protein condensates can explain the order of events in the endocytic pathway, and that these events are tuned by protein condensate phosphorylation. www.biorxiv.org/content/10.6...
biorxiv.org
Phosphoregulation of hierarchical protein condensate formation during clathrin-mediated endocytosis
The sequential assembly of over 50 proteins during clathrin-mediated endocytosis (CME) is well documented in yeast. However, the mechanisms governing this ordered recruitment remain poorly understood....
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Reposted by Felix Kraus
bioRxiv Cell Biology @biorxiv-cellbio.bsky.social · 22/09/2026
Lysosomal proteome and lipidome analyses of intestinal cells reveal the crucial role of bis(monoacylglycero)phosphate for autophagosome-lysosome fusion www.biorxiv.org/content/10.64898/20…
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Reposted by Felix Kraus
Nature Methods @natmethods.nature.com · 22/09/2026
IRIS learns conserved signaling representations from in vivo perturbation data to reconstruct cell signaling states and histories. www.nature.com/articles/s41...
nature.com
Reconstructing signaling histories of single cells via perturbation screens and transfer learning - Nature Methods
IRIS learns conserved signaling representations from in vitro perturbation data to reconstruct signaling states and histories across diverse in vivo cellular contexts.
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Felix Kraus @sauerkrausi.bsky.social · 22/09/2026
This is beautiful!
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Reposted by Felix Kraus
Molecular Cell @cp-molcell.bsky.social · 22/09/2026
Molecular mechanism of HUWE1-HAPSTR1-USP7-mediated ubiquitin chain amplification on nuclear proteins
dlvr.it
Molecular mechanism of HUWE1-HAPSTR1-USP7-mediated ubiquitin chain amplification on nuclear proteins
Yatskevich et al. show that HUWE1 amplifies existing ubiquitin tags through chain elongation and branching. A cryo-EM structure reveals multivalent HUWE1-USP7 assembly and reciprocal regulation, while HAPSTR1 tunes substrate capture by engaging HUWE1 ubiquitin-binding motifs, defining a coordinated system for short-lived nuclear protein turnover.
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Reposted by Felix Kraus
Aligning Science Across Parkinson's @asapresearch.parkinsonsroadmap.org · 21/09/2026
The team also examined how the LRRK2(G2019S) variant affects iron homeostasis, NCOA4 trafficking, and ferroptotic cell death under iron overload conditions. bit.ly/4x3vQP2
LRRK2 G2019S cells are hypersensitive to iron-induced oxidation and ferroptotic cell death.
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Reposted by Felix Kraus
bioRxiv Cell Biology @biorxiv-cellbio.bsky.social · 18/09/2026
Compartment-Specific Lysosomal Heterogeneity in Microglia Is Regulated by Adaptor Protein Complex-4 www.biorxiv.org/content/10.64898/20…
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Reposted by Felix Kraus
Felix Campelo @felixmendu.bsky.social · 16/09/2026
This is tomorrow (thursday, 5pm CET)! Join us for the first session of the #membranetrafficking seminars after the break :)
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Reposted by Felix Kraus
Robert Arkowitz @robertarkowitz.bsky.social · 16/09/2026
www.nature.com/articles/s41...
nature.com
Cholesterol maintains the degradative capacity of lysosomes during clearance and recycling of dysfunctional mitochondria - Nature Communications
Damaged mitochondria are cleared by lysosomes. Here, authors show that ER-to-lysosome cholesterol transport preserves lysosomal degradative function during mitophagy, enabling efficient recycling of l...
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Reposted by Felix Kraus
Maja Radulovic @majarad.bsky.social · 15/09/2026
Our study on DFCP1 and lysosome membrane repair is live! We uncover a previously unrecognized role for omegasomes in the cellular response to lysosomal membrane damage, revealing another layer of regulation in how damaged lysosomes are repaired. www.nature.com/articles/s41...
nature.com
DFCP1-containing ER microdomains mediate lysosomal membrane repair - Nature Cell Biology
Radulovic et al. show that phosphatidylinositol 3-phosphate (PI3P), produced by the phosphatidylinositol 3-kinase PIK3C3, is formed on ER domains after lysosome damage. ER domain PI3P helps to recruit...
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Reposted by Felix Kraus
Cell Biology J-Club @cellclub.bsky.social · 15/09/2026
New on CLN8 - a previously defined ER-cargo receptor: The Batten disease protein CLN8 is a stereospecific acyltransferase in bis(monoacylglycero)phosphate biosynthesis www.nature.com/articles/s41...
nature.com
The Batten disease protein CLN8 is a stereospecific acyltransferase in bis(monoacylglycero)phosphate biosynthesis - Nature Cell Biology
Two studies show that the endoplasmic reticulum-associated protein CLN8 catalyses the acyl CoA-dependent acylation of glycerophosphoglycerol, producing lysophosphatidylglycerol, which is then converte...
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Reposted by Felix Kraus
bioRxiv Neuroscience @biorxiv-neursci.bsky.social · 12/09/2026
GBAviewer: a structural database of GBA1 variants in Parkinson's disease www.biorxiv.org/content/10.64898/20…
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Reposted by Felix Kraus
The Science of Parkinson's @scienceofpd.bsky.social · 12/09/2026
Researchers from Lysoway Therapeutics & collaborators present preclinical data on their brain-penetrant TRPML1 agonist, LW-1017, which enhances autophagy–lysosomal function & mitigates pathology in aged models of #Parkinsons & #Alzheimers - one to watch! www.nature.com/articles/s41...
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Reposted by Felix Kraus
The Science of Parkinson's @scienceofpd.bsky.social · 11/09/2026
Interesting new review on retromer-targeted therapy for neurodegenerative conditions; Also explores current limitations & potential off-target effects of retromer enhancement - my weekend reading! link.springer.com/article/10.1...
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Reposted by Felix Kraus
Cell Biology J-Club @cellclub.bsky.social · 10/09/2026
4D spatiotemporal landscape of mitochondrial phenotypes across cellular states unlocked through representation learning: Cell www.cell.com/cell/fulltex...
cell.com
4D spatiotemporal landscape of mitochondrial phenotypes across cellular states unlocked through representation learning
Agarwal et al. introduce MitoSpace, a self-supervised model trained on 4D lattice light-sheet microscopy data. The model resolves drug-induced mitochondrial phenotypes without labels, predicts membran...
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Reposted by Felix Kraus
Cell Biology J-Club @cellclub.bsky.social · 10/09/2026
The ARLA1A-NAC089 module coordinates ER phagy with the unfolded protein response to maintain cellular homeostasis in plants: Developmental Cell www.cell.com/developmenta...
cell.com
The ARLA1A-NAC089 module coordinates ER phagy with the unfolded protein response to maintain cellular homeostasis in plants
Yang et al. reveal that the ARLA1A-NAC089 module couples ER phagy with the UPR in plants. This dual regulatory axis fine-tunes cell survival versus death under stress, providing a mechanistic framework for maintaining ER homeostasis and enhancing environmental resilience.
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Reposted by Felix Kraus
The Science of Parkinson's @scienceofpd.bsky.social · 09/09/2026
"Extremely high rates of co-pathologies suggest that therapeutics focused on a singular pathology are perhaps not very likely to be successful in modifying the course of #Parkinsons b/c they are only treating a small fraction of the disease pathobiology" journals.sagepub.com/doi/10.1177/...
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Reposted by Felix Kraus
Janet Iwasa @jiwasa.bsky.social · 09/09/2026
Interested in molecular animation? Give ProteinBlender a try! It's free and open source. animation-lab.github.io/ProteinBlend... The latest tools include a DNA builder (shown in the tutorial video below). We'd love to hear what you think! We have short tutorials that cover all the features!
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Reposted by Felix Kraus
Journal of Cell Biology @jcb.org · 09/09/2026
PISD acts as a switch between #lipophagy and fatty acid transfer to #mitochondria. From Hanbing Xue, Xingwen Hu, Zhenni Yang, Yan G. Zhao and colleagues: rupress.org/jcb/article/... 📕 From our #Lipid and #Membrane collection: rupress.org/jcb/collecti... #EMBOLipidCode
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Reposted by Felix Kraus
Ricardo D. Righetto @lifeonthewedge.bsky.social · 08/09/2026
A wild publishing ride to get here... but finally! (first bioRxiv: January 5th, 2024 🙃) Amazing work from @lorenzlamm.bsky.social and colleagues 🤗 Special thanks to the community who jumped early on the boat, sharing feedback and training data to make MemBrain v2 a reality 🙏🏽
nature.com
MemBrain v2: an end-to-end tool for the analysis of membranes in cryo-electron tomography - Nature Methods
MemBrain v2 enables streamlined analysis of membranes in cryo-electron tomography by providing user-friendly tools for membrane segmentation, membrane protein localization and spatial analysis, suppor...
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Reposted by Felix Kraus
Ishier Raote @ishier.bsky.social · 07/09/2026
Membrane Trafficking Seminar Series 2026 fall season is here! An exciting programme: membrane traffic, organelle biogenesis, lipid transport, endomembrane evolution, we have it all! Save the dates and join us for fun science and discussions. Details at felixcampelo.wixsite.com/membranetraf...
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Reposted by Felix Kraus
Erdinc Sezgin @sciezgin.bsky.social · 08/09/2025
Previous preprint is now published in RSC Chemical Biology. If you are interested in plasma membrane labeling, see the paper! 👇 pubs.rsc.org/en/content/a...
pubs.rsc.org
Plasma membrane labelling efficiency, internalization and partitioning of functionalized fluorescent lipids as a function of lipid structure
Labeling the plasma membrane for advanced imaging remains a significant challenge. For time-lapse live cell imaging, probe internalization and photobleaching are major limitations affecting most membr...
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Reposted by Felix Kraus
Christophe 🔬 Leterrier @christlet.bsky.social · 02/09/2026
Really cool! Smaller than GFP and reversibly binding last-generation rhodamine dyes. De novo pan-rhodamine binders for fluorescence microscopy from mammalian cells to extremophiles www.cell.com/cell/fulltex... Congrats @bohuang.bsky.social @rhodamine110.bsky.social @mullinslab.bsky.social et al
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Reposted by Felix Kraus
The Science of Parkinson's @scienceofpd.bsky.social · 02/09/2026
Single-cell profiling of 109 human striatum samples maps human striatal neuron diversity & subregion specialization; scMOSAIC unravels subregional & cell-type vulnerabilities in #Huntingtons www.cell.com/cell/abstrac...
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Reposted by Felix Kraus
Aligning Science Across Parkinson's @asapresearch.parkinsonsroadmap.org · 02/09/2026
Team Harper examined DNAJC13/RME-8 structure and function, offering a mechanistic framework for understanding recycling endosome regulation. 🔗 bit.ly/4gSf7sU
Structural architecture of DNAJC13 by cryo-EM.
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Reposted by Felix Kraus
Max Perutz Labs Vienna @maxperutzlabs.ac.at · 02/09/2026
🚨 Out now! Special delivery for autophagy: A new @natcomms.nature.com study from the Martens lab, led by first author Elisabeth Holzer, reveals how ATG2A and ATG8-like proteins deliver key lipids to build and expand autophagosomes ➡️ tinyurl.com/ycx9v759 @univie.ac.at @meduniwien.ac.at
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Reposted by Felix Kraus
bioRxiv Cancer Bio @biorxiv-cancer.bsky.social · 28/08/2026
Single-Cell proteomics discerns patient-specific subpopulations in pediatric B-cell acute lymphoblastic leukemia www.biorxiv.org/content/10.64898/20…
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Reposted by Felix Kraus
Nature Chemical Biology @natchembio.nature.com · 27/08/2026
A new paper reveals the mechanisms of topogenic sequence recognition in mitochondrial inner membrane complexes TIM23 and TIM22 www.nature.com/articles/s41...
nature.com
Topogenic sequence recognition at TIM complexes revealed by a stendomycin-bound structure - Nature Chemical Biology
The mitochondrial inner membrane complexes TIM23 and TIM22 mediate distinct protein topogenesis functions in polypeptide import. The authors reveal their mechanistic overlap in topogenic sequence reco...
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Reposted by Felix Kraus
bioRxiv Neuroscience @biorxiv-neursci.bsky.social · 27/08/2026
CSF complement proteins are associated with early tau pathology and synaptic damage in an asymptomatic population at risk of Alzheimer's disease www.biorxiv.org/content/10.64898/20…
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Reposted by Felix Kraus
Cell Biology J-Club @cellclub.bsky.social · 27/08/2026
The molecular basis of mitochondrial crista formation by the MIC10 complex | Science Advances www.science.org/doi/10.1126/...
science.org
The molecular basis of mitochondrial crista formation by the MIC10 complex
Mitochondrial cristae are essential for respiration, yet the molecular basis of how the high curvature of these membrane folds is maintained remains unclear. Using structure prediction tools and multi...
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Reposted by Felix Kraus
Martin Steinegger 🇺🇦 @martinsteinegger.bsky.social · 26/08/2026
Foldseek-Interface enables fast search/clustering of the protein interface universe! We clustered 3.1M PDB dimers into 77,167 groups and found new interfaces keep appearing even as fold discovery plateaus. 🧵 📄 www.biorxiv.org/content/10.6... 🔎 search.foldseek.com/interface 🌐 interface.foldseek.com
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Reposted by Felix Kraus
Álvaro López Codina @alcodina.bsky.social · 22/08/2026
Triplet tumbling microscopy enables in situ quantification of protein complex assembly and dynamics: www.biorxiv.org/content/10.6...
biorxiv.org
Triplet tumbling microscopy enables in situ quantification of protein complex assembly and dynamics
Protein-protein interactions (PPIs) mediate diverse cellular processes, but PPIs are typically characterized using reconstituted in vitro biochemical and biophysical approaches. Current approaches for...
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Felix Kraus @sauerkrausi.bsky.social · 21/08/2026
Exciting & beautiful work. Cannot wait to try it out!
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Reposted by Felix Kraus
Robert Arkowitz @robertarkowitz.bsky.social · 21/08/2026
www.biorxiv.org/content/10.6...
biorxiv.org
Ionizable Lipids Promote Curvature Remodeling and Altered Fluctuation Dynamics in Endosomal Membranes
Inefficient endosomal escape is a crucial barrier to intracellular delivery of nucleic acid therapeutics using lipid nanoparticles (LNPs). The use of ionizable lipids (ILs) has significantly improved ...
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Reposted by Felix Kraus
Cell Biology J-Club @cellclub.bsky.social · 21/08/2026
www.biorxiv.org/content/10.6...
biorxiv.org
A cleavable signal peptide controls the topology and Golgi targeting of the membrane protein TMEM165
TMEM165 is a Golgi-resident multi-pass membrane protein involved in divalent cation homeostasis and associated with congenital disorders of glycosylation, yet its N-terminal biogenesis has remained un...
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Reposted by Felix Kraus
Molecular Cell @cp-molcell.bsky.social · 20/08/2026
A negative regulator of mitochondrial complex I assembly adapts respiration to cellular energy demand
dlvr.it
A negative regulator of mitochondrial complex I assembly adapts respiration to cellular energy demand
Li et al. identify TMEM141 as a negative regulator of mitochondrial complex I assembly. Under high energy demand, the YME1L1 and AFG3L2 proteases degrade TMEM141, relieving its inhibition of the assembly factor TIMMDC1. This work reveals a mechanism that adapts complex I assembly to OXPHOS demands.
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Reposted by Felix Kraus
Nature Reviews Clinical Oncology @natrevclinonc.nature.com · 19/08/2026
dlvr.it
Exploring the landscape of targetable alterations in patients with glioblastoma
Nature Reviews Clinical Oncology, Published online: 19 August 2026; doi:10.1038/s41571-026-01190-7Despite considerable progress in other cancer types, progress with the development of targeted therapies for patients with glioblastoma has remained limited, despite considerable research effort. In this Review, the authors summarize the various attempts to develop effective targeted therapies for patients with glioblastoma, including some of the challenges that have likely impaired progress thus far. The authors also highlight novel therapies, clinical trial designs and research directions that have been informed by the shortcomings of previous research efforts, all of which might eventually lead to improved outcomes for patients.
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Reposted by Felix Kraus
Cell Biology J-Club @cellclub.bsky.social · 18/08/2026
link.springer.com/article/10.1...
link.springer.com
Disease-specific tau polymorphs are associated with unique protein networks across proteinopathies - The EMBO Journal
Tau protein aggregates adopt distinct conformations across tauopathies, yet the protein interactions engaged by disease-specific polymorphs remain poorly characterized. Here, we demonstrate that confo...
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Reposted by Felix Kraus
The Science of Parkinson's @scienceofpd.bsky.social · 17/08/2026
Researchers conducted a scoping review of neuroinflammation biomarkers across #Alzheimers, #Parkinsons, ALS, FTD, #Huntingtonsdisease, Lewy body dementia, multiple system atrophy & progressive supranuclear palsy, covering the past 23 years academic.oup.com/braincomms/a...
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Reposted by Felix Kraus
Cell Biology J-Club @cellclub.bsky.social · 13/08/2026
Reconstitution of multistep recruitment of ULK1 to membranes in autophagy www.biorxiv.org/content/10.1...
biorxiv.org
Reconstitution of multistep recruitment of ULK1 to membranes in autophagy
The Human ULK1 autophagy-initiating complex consists of ULK1, FIP200, and the HORMA domain heterodimer ATG13:ATG101. PI3P is essential to recruit ULK1C to membranes for ULK1, but ULK1C subunits do not...
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Reposted by Felix Kraus
The Science of Parkinson's @scienceofpd.bsky.social · 12/08/2026
Researchers performed a logistic regression to identify health variables linked to #Parkinsons & found 43% of PD patients have depression, anxiety, or disordered sleep; Novel mood-sleep cluster may be linked to dysfunction of norepinephrinergic projections www.prd-journal.com/article/S135...
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Reposted by Felix Kraus
Cell Biology J-Club @cellclub.bsky.social · 06/08/2026
www.nature.com/articles/s41...
nature.com
α-Synuclein blocks endoplasmic reticulum co-translational protein translocation early in Parkinson’s disease - Nature Communications
Proteomic and transcriptomic profiling on hiPSC-derived midbrain dopaminergic neurons with pathological α-synuclein burden reveals defective Sec61A interactions and co-translational translocation of E...
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