Featured
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Article
| Open AccessMechanistic basis of the dynamic response of TWIK1 ionic selectivity to pH
Using computer simulations authors identify the dynamic molecular motions controlling the structural conformation of the TWIK1 ion channel, showing that its ability to transport sodium upon acidification result from the evolution of the classical potassium-selective pore.
- Franck C. Chatelain
- , Nicolas Gilbert
- & Olivier Bignucolo
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Article
| Open AccessNative N-glycome profiling of single cells and ng-level blood isolates using label-free capillary electrophoresis-mass spectrometry
Single-cell manipulation and processing techniques and improvements in mass spectrometry sensitivity make single-cell proteomic profiling feasible. This study presents a label-free approach for the characterisation of native N-glycans of single mammalian cells and ng-level blood isolates, demonstrating the potential to detect cell surface glycome changes at the single-cell level in health or disease.
- Anne-Lise Marie
- , Yunfan Gao
- & Alexander R. Ivanov
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Article
| Open AccessAllosteric regulation by c-di-AMP modulates a complete N-acetylglucosamine signaling cascade in Saccharopolyspora erythraea
c-di-AMP is essential for bacterial signaling. Here, the authors identify the GlcNAc-sensing regulator DasR as a c-di-AMP receptor and provide molecular insight into their signaling effect on the developmental and antibiotic biosynthesis control across Actinobacteria.
- Di You
- , Liu-Chang Zhao
- & Bang-Ce Ye
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Article
| Open AccessAn interphase actin wave promotes mitochondrial content mixing and organelle homeostasis
A mitochondrial actin wave fragments mitochondria. Here, the authors find that the wave produces force that is resisted by mitochondrial tethering, inducing fission, with subsequent fusion promoting mitochondrial content mixing and mitochondrial homeostasis.
- Stephen M. Coscia
- , Andrew S. Moore
- & Erika L. F. Holzbaur
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Article
| Open AccessPharmacological inhibition of α-synuclein aggregation within liquid condensates
Aggregated forms of α-synuclein are characteristic of Parkinson’s disease. Here the authors show that the condensation-driven aggregation pathway of α-synuclein can be inhibited using small molecules: the aminosterol claramine stabilizes α-synuclein condensates and inhibits α-synuclein primary nucleation in the aggregation process.
- Samuel T. Dada
- , Zenon Toprakcioglu
- & Michele Vendruscolo
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Article
| Open AccesstauFisher predicts circadian time from a single sample of bulk and single-cell pseudobulk transcriptomic data
There is a need to determine circadian time in gene expression datasets. Here, authors built tauFisher, a pipeline that predicts circadian time labels from single transcriptomic samples. tauFisher will be useful for determining body clock time in circadian medicine and for research.
- Junyan Duan
- , Michelle N. Ngo
- & Bogi Andersen
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Article
| Open AccessThe miR-144/Hmgn2 regulatory axis orchestrates chromatin organization during erythropoiesis
Differentiation of stem and progenitor cells is a highly regulated process. Here, the authors uncover miR-144 and its target Hmgn2 as the backbone of the genetic regulatory circuit that controls the terminal differentiation of erythrocytes in vertebrates.
- Dmitry A. Kretov
- , Leighton Folkes
- & Daniel Cifuentes
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Article
| Open AccessSpatially revealed roles for lncRNAs in Drosophila spermatogenesis, Y chromosome function and evolution
In Drosophila, long noncoding RNAs (lncRNAs) are expressed most highly in male germline cells. Here the authors report the subcellular distributions of approximately 600 Drosophila lncRNAs in male reproductive tissues, indicating potential involvement in spermatogenesis, fertility and evolution.
- Zhantao Shao
- , Jack Hu
- & Henry M. Krause
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Article
| Open AccessSeasonal antigenic prediction of influenza A H3N2 using machine learning
This study presents a machine learning model that accurately predicts seasonal antigenic changes of influenza A H3N2 using genetic data. The model’s predictions can aid influenza surveillance, vaccine strain selection, and public health management.
- Syed Awais W. Shah
- , Daniel P. Palomar
- & Matthew R. McKay
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Article
| Open AccessStructural basis for the intracellular regulation of ferritin degradation
Ferritin, the cellular iron storage complex, binds NCOA4 and is trafficked to the lysosome for degradation and iron release. Here, authors present the cryo-EM structure of the NCOA4-Ferritin complex with biophysical and cellular characterization.
- Fabian Hoelzgen
- , Thuy T. P. Nguyen
- & Gabriel A. Frank
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Article
| Open AccessSARS-CoV-2 Mpro responds to oxidation by forming disulfide and NOS/SONOS bonds
The main protease, a key enzyme of SARS-CoV-2, can protect itself from oxidative damage. Here, Reinke, Schubert, and colleagues used XFEL radiation to image the enzyme, revealing the disulfide and NOS/SONOS bonds that form in response to oxygen.
- Patrick Y. A. Reinke
- , Robin Schubert
- & Thomas J. Lane
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Article
| Open AccessHarnessing noncanonical crRNA for highly efficient genome editing
The inclusion of base Z has the potential to heighten the binding affinity between complementary nucleic acids. Here, the authors integrated base Z into CRISRP-Cas12a crRNA to augment the interaction between the crRNA and the target DNA, resulting in a significant enhancement of editing efficiency.
- Guanhua Xun
- , Zhixin Zhu
- & Huimin Zhao
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Article
| Open AccessA comprehensive genetic map of cytokine responses in Lyme borreliosis
Common genetic variants can affect an individual’s immune response to pathogens. Here, the authors uncover and characterize variants regulating cytokine responses in Lyme Borreliosis in 1,060 patients.
- Javier Botey-Bataller
- , Hedwig D. Vrijmoeth
- & Yang Li
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Article
| Open AccessImpact of distinct FG nucleoporin repeats on Nup98 self-association
Here, the authors demonstrate that mutations in the FG repeats of Nup98 significantly reduce its self-association capabilities and present a cryoEM structure exhibiting higher stability per residue then previously observed, suggesting spatial variations in self-association.
- Alain Ibáñez de Opakua
- , Christian F. Pantoja
- & Markus Zweckstetter
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Article
| Open AccessMetabolic phenotyping reveals an emerging role of ammonia abnormality in Alzheimer’s disease
Metabolic implications in AD are unclear. Here, authors found significant correlations between cognitive impairment and metabolic features in a Chinese aging cohort (n = 1397). The study highlights ammonia disturbance as a potential therapeutic target for AD.
- Tianlu Chen
- , Fengfeng Pan
- & Wei Jia
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Article
| Open AccessCRISPR-dCas13d-based deep screening of proximal and distal splicing-regulatory elements
Here the authors develop Splice-RUSH, a high-throughput screening method to map both proximal and distal splicing-regulatory sequences in a native sequence context. These sequences can also be targeted by ASOs to modulate splicing.
- Yocelyn Recinos
- , Dmytro Ustianenko
- & Chaolin Zhang
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Article
| Open AccessLower Ordovician synziphosurine reveals early euchelicerate diversity and evolution
Here, the authors describe an early synziphosurine from the Lower Ordovician Fezouata Shale of Morocco, which exhibits traits that elucidate the long-contentious relationships between crown euchelicerates and their sister taxa, and also clarifies euchelicerate body plan evolution.
- Lorenzo Lustri
- , Pierre Gueriau
- & Allison C. Daley
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Article
| Open AccessThe genomic landscape of Vk*MYC myeloma highlights shared pathways of transformation between mice and humans
Mouse models often combine mutant alleles to accelerate cancer development, limiting oncogenic diversity. Here the authors show that sporadic MYC activation in Vk*MYC mice is sufficient to induce tumors with a variety of secondary mutations that mirror the genetic heterogeneity of human myeloma.
- Francesco Maura
- , David G. Coffey
- & Marta Chesi
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Article
| Open AccessCardiac function is regulated by the sodium-dependent inhibition of the sodium-calcium exchanger NCX1
The sodium-calcium exchanger (NCX1) is the primary calcium extrusion mechanism of cardiac myocytes. Here, the authors show that removal of a long questioned allosteric regulation of NCX1 by intracellular sodium alters cardiac excitation-contraction coupling.
- Kyle Scranton
- , Scott John
- & Michela Ottolia
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Article
| Open AccessDeterminants of mosaic chromosomal alteration fitness
Here, the authors use passenger mutations to quantify expansion rate in ~6,000 people with mosaic chromosomal alterations in the NHLBI TOPMed cohort, finding associations between growth rate and blood counts along with germline genetic modulators of growth rate.
- Yash Pershad
- , Taralynn Mack
- & Alexander G. Bick
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Article
| Open AccessComplete male-to-female sex reversal in XY mice lacking the miR-17~92 cluster
The cluster miR-17~92 modulates the expression of genes networks and signalling pathways to ensure proper Sry expression timing and subsequent testis differentiation, an unexpected role for miRNAs in the early steps of mammalian sex determination.
- Alicia Hurtado
- , Irene Mota-Gómez
- & Francisco J. Barrionuevo
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Article
| Open AccessFGFR inhibition blocks NF-ĸB-dependent glucose metabolism and confers metabolic vulnerabilities in cholangiocarcinoma
FGFR inhibitors (FGFRi) benefit patients with FGFR2-fusion positive intrahepatic cholangiocarcinoma (ICC) but depth and duration of response is often limited. Here, the authors demonstrate that oncogenic FGFR2 signaling promotes a glycolytic phenotype, which is blocked by FGFRi, resulting in a targetable dependence on mitochondrial metabolism.
- Yuanli Zhen
- , Kai Liu
- & Nabeel Bardeesy
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Article
| Open AccessPersistent and multiclonal malaria parasite dynamics despite extended artemether-lumefantrine treatment in children
Standard diagnostics are often not able to fully capture submicroscopic parasite dynamics after treatment with antimalarials. In this longitudinal analysis of molecular markers of malaria parasitemia in an Ugandan cohort, authors describe persistence of markers following antimalarial therapy with dynamic and complex multiclonal infections in the initial and post-treatment periods.
- Justin Goodwin
- , Richard Kajubi
- & Sunil Parikh
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Article
| Open AccessSpecific exercise patterns generate an epigenetic molecular memory window that drives long-term memory formation and identifies ACVR1C as a bidirectional regulator of memory in mice
Exercise has beneficial effects on cognition. Here, authors utilize an exercise model to show ACVR1C to be an essential bidirectional regulator of memory and synaptic plasticity in adult, aging and 5xFAD mice beyond the context of exercise.
- Ashley A. Keiser
- , Tri N. Dong
- & Marcelo A. Wood
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Article
| Open AccessReplication competent HIV-guided CRISPR screen identifies antiviral factors including targets of the accessory protein Nef
Innate immune mechanisms are critical for antiviral defense. Here, the authors developed a CRISPR/Cas9-based HIV-driven approach to identify cellular factors compromising viral transcription, assembly, release or infectivity in human T cells. They identify targets of the Nef protein as antiviral factors.
- Caterina Prelli Bozzo
- , Alexandre Laliberté
- & Frank Kirchhoff
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Article
| Open AccessContextual and combinatorial structure in sperm whale vocalisations
Sperm whales use sequences of clicks to communicate. Here, the authors show that these vocalizations are significantly more complex than previously believed-the “sperm whale phonetic alphabet" has both combinatorial structure and call modulation dependent on the conversational context.
- Pratyusha Sharma
- , Shane Gero
- & Jacob Andreas
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Article
| Open AccessSleep fragmentation exacerbates myocardial ischemia‒reperfusion injury by promoting copper overload in cardiomyocytes
Sleep disorders increase the risk and mortality of heart disease. Here, the authors show that sleep fragmentation results in elevated copper levels in the male mouse heart and exacerbates myocardial ischemia–reperfusion injury with increased myocardial cuproptosis and apoptosis.
- Na Chen
- , Lizhe Guo
- & E. Wang
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Article
| Open AccessDistinct cellular immune responses in children en route to type 1 diabetes with different first-appearing autoantibodies
Previous studies have reported heterogeneity in the progression to clinical type 1 diabetes in children who develop either insulin- or glutamic acid decarboxylase-specific antibodies as their first autoantibodies. Here, the authors show that children who later develop disease have distinct characteristics in early immune responses, which are dependent on the type of autoantibodies that appear first.
- Inna Starskaia
- , Milla Valta
- & Riitta Lahesmaa
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Article
| Open AccessHigh SARS-CoV-2 incidence and asymptomatic fraction during Delta and Omicron BA.1 waves in The Gambia
Many low- and middle-income countries, including The Gambia, had low COVID-19 vaccination coverage during the emergence of the Delta and Omicron variants. Here, the authors perform a prospective household cohort study in the Gambia to investigate the dynamics of SARS-Cov-2 infection in this setting.
- Sheikh Jarju
- , Rhys D. Wenlock
- & Thushan I. de Silva
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Article
| Open AccessLongitudinal molecular profiling elucidates immunometabolism dynamics in breast cancer
Although metabolic reprogramming within the tumour microenvironment (TME) has been reported in breast cancer, whether and how this evolves during treatment remains unclear. Here, the authors use multiple ‘omic’ analyses to examine this question in patients with breast cancer undergoing neoadjuvant chemotherapy.
- Kang Wang
- , Ioannis Zerdes
- & Theodoros Foukakis
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Article
| Open AccessDisentangling genetic effects on transcriptional and post-transcriptional gene regulation through integrating exon and intron expression QTLs
Expression quantitative trait loci (eQTL) studies typically only consider exon expression levels and discard intronic RNA sequencing reads. Here, the authors show that analyzing eQTLs together with QTLs for intron levels and exon-intron ratios expands the number and functional understanding of genetic effects on gene regulatory processes.
- Anneke Brümmer
- & Sven Bergmann
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Article
| Open AccessDe novo generation of multi-target compounds using deep generative chemistry
Polypharmacology drugs are compounds designed to inhibit multiple protein targets. Here, authors use recent advances in AI to rapidly generate polypharmacology compounds against any pair of protein targets, experimentally validating numerous compounds targeting MEK1 and mTOR.
- Brenton P. Munson
- , Michael Chen
- & Trey Ideker
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Article
| Open AccessArabidopsis α-Aurora kinase plays a role in cytokinesis through regulating MAP65-3 association with microtubules at phragmoplast midzone
Arabidopsis α-Aurora kinase regulates plant cytokinesis by phosphorylating the microtubule-associated protein MAP65-3, which controls the dynamic organization of the phragmoplast structure essential for cytokinesis completion.
- Xingguang Deng
- , Yu Xiao
- & Honghui Lin
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Article
| Open AccessDeciphering DED assembly mechanisms in FADD-procaspase-8-cFLIP complexes regulating apoptosis
Here the authors structurally and mechanistically characterize the assembly of FADD, procaspase-8, and cFLIP through their death-effector domains (DEDs), providing insights into the regulation of apoptotic and necroptotic signalling.
- Chao-Yu Yang
- , Chia-I Lien
- & Su-Chang Lin
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Article
| Open AccessActive site remodeling in tumor-relevant IDH1 mutants drives distinct kinetic features and potential resistance mechanisms
Here the authors show mutants of isocitrate dehydrogenase 1 (IDH1), an enzyme implicated in various cancers, have distinct catalytic and structural features that drive their ability to generate an oncometabolite.
- Matthew Mealka
- , Nicole A. Sierra
- & Christal D. Sohl
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Article
| Open AccessA conserved N-terminal motif of CUL3 contributes to assembly and E3 ligase activity of CRL3KLHL22
The assembly integrity of dimeric CRL3 E3 ligases are important in various physiological and pathological processes. Here, the authors show that an evolutionarily conserved CUL3 N-terminal motif contributes to both the assembly and activity of dimeric CRL3 E3 ligases.
- Weize Wang
- , Ling Liang
- & Yuxin Yin
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Article
| Open AccessBERNN: Enhancing classification of Liquid Chromatography Mass Spectrometry data with batch effect removal neural networks
Liquid Chromatography Mass Spectrometry (LC-MS) is a powerful method for profiling biological samples. Here, the authors have developed a suit of Batch Effect Removal Neural Networks (BERNN) to remove batch effects in large LC-MS experiments to maximize sample classification between conditions.
- Simon J. Pelletier
- , Mickaël Leclercq
- & Arnaud Droit
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Article
| Open AccessIn vivo genome editing via CRISPR/Cas9-mediated homology-independent targeted integration for Bietti crystalline corneoretinal dystrophy treatment
Bietti crystalline corneoretinal dystrophy (BCD) is an autosomal recessive chorioretinal degenerative disease without approved therapeutic drug. Here, the authors show a promising CRISPR/Cas9 mediated homology-independent targeted integration therapy in patient derived cells and humanized mice carrying BCD mutations.
- Xiang Meng
- , Ruixuan Jia
- & Liping Yang
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Article
| Open AccessGenetic influence on within-person longitudinal change in anthropometric traits in the UK Biobank
The availability of longitudinal data in large biobanks is increasing. Here, using data from the UK Biobank, the authors develop and apply analytical approaches to quantify genetic contributions to change over time for traits like height and weight.
- Kathryn E. Kemper
- , Julia Sidorenko
- & Peter M. Visscher
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Article
| Open AccessA Toxoplasma gondii O-glycosyltransferase that modulates bradyzoite cyst wall rigidity is distinct from host homologues
A Toxoplasma gondii mucin-type O-glycosyltransferase uses a unique catalytic mechanism to modify bradyzoite cyst wall proteins. A second metal coupled to substrate binding is required for catalysis, while an active site glutamate suggests a double-displacement mechanism.
- Pranav Kumar
- , Tadakimi Tomita
- & Nadine L. Samara
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Article
| Open AccessPlatform-directed allostery and quaternary structure dynamics of SAMHD1 catalysis
SAMHD1 is a regulator of dNTP homeostasis and an HIV restriction factor. The authors use time-resolved cryo-EM to visualise dynamic conformational changes that drive the catalytic cycle and allosteric regulation of this multi-subunit enzyme.
- Oliver J. Acton
- , Devon Sheppard
- & Ian A. Taylor
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Article
| Open AccessTargeted delivery of the probiotic Saccharomyces boulardii to the extracellular matrix enhances gut residence time and recovery in murine colitis
In this study, the authors engineered a targeted Saccharomyces boulardii probiotic yeast platform, showing it exhibits high adherence to extracellular matrix proteins, resulting in longer gut residence, higher colon concentrations, and enhanced recovery in murine colitis.
- Mairead K. Heavey
- , Anthony Hazelton
- & Juliane Nguyen
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Article
| Open AccessAn adeno-associated virus variant enabling efficient ocular-directed gene delivery across species
In non-human primates, rAAVs are delivered through suprachoroidal injection at a high dose to achieve optimal efficacy. Here, the authors present a novel AAV capsid (AAVv128) that significantly improved the transduction efficiency in photoreceptor and retinal pigment epithelial cells across species.
- Shuang Luo
- , Hao Jiang
- & Xun Sun
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Article
| Open AccessBiosynthetic production of anticoagulant heparin polysaccharides through metabolic and sulfotransferases engineering strategies
Microbial heparin bioproduction is hampered by the difficulty of recombinant expression of active heparan sulfate N-deacetylase/N-sulfotransferase. Here, the authors solve the problem by developing a cellular system-based semisynthetic strategy and achieve the production of active heparin by engineered E. coli.
- Jian-Qun Deng
- , Yi Li
- & Ju-Zheng Sheng
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Article
| Open AccessAn oxylipin signal confers protection against antifungal echinocandins in pathogenic aspergilli
Echinocandins are antifungal drugs that inhibit hyphal growth and induce lysis of hyphal tip compartments in pathogenic Aspergillus species. Here, Calise et al. show that echinocandins induce production of a fungal oxylipin signal, thus triggering hyphal growth changes that reduce hyphal tip lysis and confer echinocandin tolerance.
- Dante G. Calise
- , Sung Chul Park
- & Nancy P. Keller
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Article
| Open AccessMutation characteristics and molecular evolution of ovarian metastasis from gastric cancer and potential biomarkers for paclitaxel treatment
‘Gastric cancer metastasis to the ovary is difficult to treat and is not fully understood. Here, the authors characterized mutations in a cohort of matched primary and metastatic disease, and found mutations, including in CLDN18, could predict treatment response to paclitaxel.
- Pengfei Yu
- , Can Hu
- & Xiangdong Cheng
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Article
| Open AccessTargeting adipocyte ESRRA promotes osteogenesis and vascular formation in adipocyte-rich bone marrow
Excessive bone marrow adipocytes accumulation is involved in bone deterioration. Here, the authors show that adipocyte ESRRA abrogation promotes osteogenesis and vascular formation in adipocyte-rich bone marrow via oppositely regulating the expression and secretion of leptin and SPP1.
- Tongling Huang
- , Zhaocheng Lu
- & Min Guan
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Article
| Open AccessGiant organelle vesicles to uncover intracellular membrane mechanics and plasticity
The biophysical properties of cellular organelles are difficult to study directly. Here, the authors generate and characterize osmotically-expanded giant vesicles of several organelles, which maintain some of their functional properties.
- Alexandre Santinho
- , Maxime Carpentier
- & Abdou Rachid Thiam
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Article
| Open AccessArabidopsis SBT5.2 and SBT1.7 subtilases mediate C-terminal cleavage of flg22 epitope from bacterial flagellin
Plants initiate specific defense responses by recognizing flg22 peptide epitope derived from flagellin, the major structural protein of the bacterial flagellum. Here, the authors identified two plant subtilases, SBT5.2 and SBT1.7, as specific proteases responsible for cleaving the peptide epitope.
- Sayaka Matsui
- , Saki Noda
- & Yoshikatsu Matsubayashi
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