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OTUD1 is a deubiquitinating enzyme involved in many cellular processes including cancer and innate, immune signaling pathways. Here, we perform a proximity labeling-based interactome study that identifies OTUD1 largely present in the translation and RNA metabolism protein complexes. Biochemical analysis validates OTUD1 association with ribosome subunits, elongation factors and the E3 ubiquitin ligase ZNF598 but not with the translation initiation machinery. OTUD1 catalytic activity suppresses polyA triggered ribosome stalling through inhibition of ZNF598-mediated RPS10 ubiquitination and stimulates formation of polysomes. Finally, analysis of gene expression suggests that OTUD1 regulates the stability of rare codon rich mRNAs by antagonizing ZNF598.
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http://dx.doi.org/10.1128/mcb.00265-22 | DOI Listing |
Medicine (Baltimore)
September 2025
Department of Pediatrics, Affiliated Hospital of Jining Medical University, Jining, Shandong Province, China.
Rationale: Weaver syndrome is a rare congenital overgrowth disorder characterized by a wide spectrum of clinical manifestations that often overlap with other overgrowth syndromes. It is primarily caused by pathogenic variants in the Enhancer of Zeste Homolog 2 (EZH2) gene on chromosome 7q36.1.
View Article and Find Full Text PDFJ Biol Chem
September 2025
Department of Chemistry and Center for Molecular Signaling, Wake Forest University, Winston-Salem, NC, 27109. Electronic address:
The AUA isoleucine codon is generally rare and used with varying frequency in bacterial genomes. The tRNA responsible for decoding this trinucleotide must be modified at the wobble position by tRNA lysidine synthetase (TilS) prior to aminoacylation and accommodation at the ribosome. To test the hypothesis that TilS catalytic efficiency correlates with AUA frequency, we cloned tilS genes from bacteria with varying AUA codon usage.
View Article and Find Full Text PDFBMC Zool
August 2025
Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, 98166, Italy.
Background: Fishes are key components of the megafauna of the deep sea, and evolutionary adaptations to deep-sea life appear to have occurred independently in at least 22 fish orders. In this context, the analysis of even more fish genomes and mitogenomes has fundamental importance, providing a valuable resource for understanding the molecular mechanisms underlying evolutionary adaptation, especially to extreme environments such as the deep sea. Here, we report the first complete mitochondrial genome of Zu cristatus (Bonelli, 1819), providing essential information on its structure and phylogeny.
View Article and Find Full Text PDFViruses
July 2025
Cancer Virology Program, Hillman Cancer Center, University of Pittsburgh, Pittsburgh, PA 15213, USA.
Viruses use a range of sophisticated strategies to evade detection by cytotoxic T-lymphocytes (CTLs) within host cells. Beyond elaborating dedicated viral proteins that disrupt the MHC class I antigen-presentation machinery, some viruses possess intrinsic, cis-acting genome-encoded elements that interfere with antigen processing and display. These protein features, including G-quadruplex motifs, repetitive peptide sequences, and rare-codon usage, counterintuitively limit production of proteins critical to virus survival, particularly during latency.
View Article and Find Full Text PDFGenes (Basel)
August 2025
Laboratory of Clinical Pathology, Joint Faculty of Veterinary Medicine, Kagoshima University, Kagoshima 890-0065, Japan.
: Pompe disease (PD) is a rare autosomal recessive disorder caused by a deficiency of the lysosomal acid α-1,4-glucosidase (GAA) encoded by the gene, leading to muscular dysfunctions due to pathological accumulation of glycogen in skeletal and cardiac muscles. PD has been reported in several animals and Japanese quails (JQ; ), but a causative mutation has yet to be found in JQs with PD. Here, we aimed to identify a pathogenic mutation in JQs associated with PD.
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