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Structural basis for metal ion transport by the human SLC11 proteins DMT1 and NRAMP1.
Nat Commun
January 2025
Department of Biochemistry, University of Zurich, Zurich, Switzerland.
Iron and manganese are essential nutrients whose transport across membranes is catalyzed by members of the SLC11 family. In humans, this protein family contains two paralogs, the ubiquitously expressed DMT1, which is involved in the uptake and distribution of Fe and Mn, and NRAMP1, which participates in the resistance against infections and nutrient recycling. Despite previous studies contributing to our mechanistic understanding of the family, the structures of human SLC11 proteins and their relationship to functional properties have remained elusive.
View Article and Find Full Text PDFLipidic folding pathway of α-Synuclein via a toxic oligomer.
Nat Commun
January 2025
NMR Based Structural Biology, Max Planck Institute for Multidisciplinary Sciences, Göttingen, Germany.
Aggregation intermediates play a pivotal role in the assembly of amyloid fibrils, which are central to the pathogenesis of neurodegenerative diseases. The structures of filamentous intermediates and mature fibrils are now efficiently determined by single-particle cryo-electron microscopy. By contrast, smaller pre-fibrillar α-Synuclein (αS) oligomers, crucial for initiating amyloidogenesis, remain largely uncharacterized.
View Article and Find Full Text PDFPhosphodiesterase 4D inhibition improves the functional and molecular outcome in a mouse and human model of Charcot Marie Tooth disease 1 A.
Biomed Pharmacother
January 2025
Laboratory for Functional Imaging & Research on Stem Cells, BIOMED, Faculty of Medicine and Life Sciences, Hasselt University, Diepenbeek, Belgium. Electronic address:
Charcot-Marie-Tooth disease type 1A (CMT1A) is an inherited peripheral neuropathy caused by a duplication of the peripheral myelin protein 22 (PMP22) gene. It is primarily marked by Schwann cell dedifferentiation and demyelination, leading to motor and sensory deficits. Cyclic adenosine monophosphate (cAMP) is crucial for Schwann cell differentiation and maturation.
View Article and Find Full Text PDFAberrant acetylation caused by a CDYL splicing mutation contributes to thin mid-piece related asthenoteratozoospermia and male infertility.
Andrology
January 2025
Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.
Objectives: Acetylated tubulin is a hallmark of flagellar stability in spermatozoa, and studies have demonstrated the ability of CDYL to function as a tubulin acetyltransferase in spermatozoa. Of note, germline conditional knockout of Cdyl can lead to asthenoteratozoospermia and infertility in male mice. However, the role of CDYL gene in human fertility remains uncharacterized.
View Article and Find Full Text PDFMicrosporocytic ARF17 misexpression leads to an excess callose deposition and male sterility in Arabidopsis.
Plant Mol Biol
January 2025
Shanghai Collaborative Innovation Center of Plant Germplasm Resources Development, College of Life Sciences, Shanghai Normal University, Shanghai, China.
The accurate callose deposition plays important roles in pollen wall formation and pollen fertility. As a direct target of miRNA160, ARF17 participate in the formation of the callose wall. However, the impact of ARF17 misexpression in microsporocytes on callose wall formation and pollen fertility remains unknown.
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