Results 41 to 50 of about 290,493 (308)

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

open access: yesFEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe   +3 more
wiley   +1 more source

The biogenesis of the immunopeptidome

open access: yesSeminars in Immunology, 2023
The immunopeptidome is the repertoire of peptides bound and presented by the MHC class I, class II, and non-classical molecules. The peptides are produced by the degradation of most cellular proteins, and in some cases, peptides are produced from extracellular proteins taken up by the cells.
openaire   +2 more sources

The Biogenesis and Functions of Exosomes [PDF]

open access: yesTraffic, 2002
Exosomes are membrane vesicles with a diameter of 40–100 nm that are secreted by many cell types into the extracellular milieu. They correspond to the internal vesicles of an endosomal compartment, the multivesicular body and are released upon exocytic fusion of this organelle with the plasma membrane. Intracellularly, they are formed by inward budding
Stoorvogel, Willem   +3 more
openaire   +3 more sources

The dynamics and functional impact of tRNA repertoires during early embryogenesis in zebrafish

open access: yesThe EMBO Journal
Embryogenesis entails dramatic shifts in mRNA translation and turnover that reprogram gene expression during cellular proliferation and differentiation.
Madalena M Reimão-Pinto   +5 more
doaj   +1 more source

CircRNA: A new class of targets for gastric cancer drug resistance therapy

open access: yesPathology and Oncology Research, 2023
Gastric cancer (GC) is one of the most common malignancies worldwide. Patients with advanced GC need palliative care to ensure survival. This includes the use of chemotherapy agents, such as cisplatin, 5-fluorouracil, oxaliplatin, paclitaxel, and ...
Ying Zheng   +15 more
doaj   +1 more source

Organ‐specific redox imbalances in spinal muscular atrophy mice are partially rescued by SMN antisense oligonucleotides

open access: yesFEBS Letters, EarlyView.
We identified a systemic, progressive loss of protein S‐glutathionylation—detected by nonreducing western blotting—alongside dysregulation of glutathione‐cycle enzymes in both neuronal and peripheral tissues of Taiwanese SMA mice. These alterations were partially rescued by SMN antisense oligonucleotide therapy, revealing persistent redox imbalance as ...
Sofia Vrettou, Brunhilde Wirth
wiley   +1 more source

CRISPR/Cas9-mediated knock-in of the murine Y chromosomal genes Zfy1 and Zfy2

open access: yesBMC Genomics
Background The Y-linked mouse zinc finger genes Zfy1 and Zfy2 are critical fertility factors in mice but the mechanisms by which they regulate spermatogenesis remain unclear.
Hayden Holmlund   +6 more
doaj   +1 more source

Lead Compounds in the Context of Extracellular Vesicle Research

open access: yesPharmaceutics, 2020
Studies of small extracellular vesicles (sEVs), known as exosomes, have been flourishing in the last decade with several achievements, from advancing biochemical knowledge to use in biomedical applications.
Thao T.D. Tran, Phuong H.L. Tran
doaj   +1 more source

Pathogenic mechanisms and the potential clinical value of circFoxo3 in cancers

open access: yesMolecular Therapy: Nucleic Acids, 2021
Circular RNAs (circRNAs) are covalently closed circular structures that can function in various physiological and pathological processes by acting as microRNA (miRNA) sponges, RNA-binding protein (RBP) sponges, mRNA transcriptional regulators, and ...
Lei Zhang   +4 more
doaj   +1 more source

A comparative study of peroxisomal structures in Hansenula polymorpha pex mutants [PDF]

open access: yes, 2007
In a recent study, we performed a systematic genome analysis for the conservation of genes involved in peroxisome biogenesis (PEX genes) in various fungi.
Koek, Anne,   +8 more
core   +1 more source

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