Post-translational modification with Ubiquitin-like proteins represents a complex signaling language regulating virtually every cellular process. Among these post-translational modifiers is Ubiquitin-fold modifier (UFM1), which is covalently attached to its substrates through the orchestrated action of a dedicated enzymatic cascade. Originally identified to be involved embryonic development, its biological function remains enigmatic. Recent research reveals that UFM1 regulates a variety of cellular events ranging from DNA repair to autophagy and ER stress response implicating its involvement in a variety of diseases. Given the contribution of UFM1 to numerous pathologies, the enzymes of the UFM1 cascade represent attractive targets for pharmacological inhibition. Here we discuss the current understanding of this cryptic post-translational modification especially its contribution to disease as well as expand on the unmet needs of developing chemical and biochemical tools to dissect its role.
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http://dx.doi.org/10.3390/biom11020255 | DOI Listing |
Nat Commun
January 2025
Department of Biomedicine, University of Bergen, Bergen, Norway.
N-terminal acetylation is a highly abundant protein modification in eukaryotic cells. This modification is catalysed by N-terminal acetyltransferases acting co- or post-translationally. Here, we review the eukaryotic N-terminal acetylation machinery: the enzymes involved and their substrate specificities.
View Article and Find Full Text PDFLife Sci Alliance
March 2025
https://ror.org/00hj54h04 Interdisciplinary Life Sciences Graduate Programs, The University of Texas at Austin, Austin, TX, USA
Breast cancer stem cells (CSCs) are difficult to therapeutically target, but continued efforts are critical given their contribution to tumor heterogeneity and treatment resistance in triple-negative breast cancer. CSC properties are influenced by metabolic stress, but specific mechanisms are lacking for effective drug intervention. Our previous work on TFEB suggested a key function in CSC metabolism.
View Article and Find Full Text PDFBiochim Biophys Acta Mol Cell Res
January 2025
Designing Future Health Initiative, Center for Promotion of Innovation Strategy, Head Office of Enterprise Partnerships, Tohoku University, Miyagi 980-8579, Japan.
Proteasome-dependent protein degradation and the digestion of peptides by aminopeptidases are essential for myogenesis. Methionine aminopeptidases (MetAPs) are uniquely involved in, both, the proteasomal degradation of proteins and in the regulation of translation (via involvement in post-translational modification). Suppressing MetAP1 and MetAP2 expression inhibits the myogenic differentiation of C2C12 myoblasts.
View Article and Find Full Text PDFCarbohydr Res
January 2025
Department of Molecular Biochemistry, Nagoya University Graduate School of Medicine, 65 Tsurumai-Cho, Showa-Ku, Nagoya, Aichi, 466-8550, Japan; Institute for Glyco-core Research (iGCORE), Nagoya University, Furo-Cho, Chikusa-Ku, Nagoya, Aichi, 464-8601, Japan. Electronic address:
Extracellular O-GlcNAc is a unique post-translational modification that occurs in the epidermal growth factor-like (EGF) domain of the endoplasmic reticulum (ER) lumen. The EGF domain-specific O-GlcNAc transferase (EOGT), catalyzes the transfer of O-GlcNAc to serine/threonine residues of the C-terminal EGF domain. Thus, EOGT-dependent O-GlcNAc modifications are mainly found in selective proteins that are localized in the extracellular spaces or extracellular regions of membrane proteins.
View Article and Find Full Text PDFActa Cir Bras
January 2025
Universidade Federal de Mato Grosso do Sul - Postgraduate Program in Health and Development in the Midwest Region - Campo Grande (MS) - Brazil.
Purpose: To evaluate the molecular evolution of endoplasmic reticulum (ER) stress during colorectal cancer carcinogenesis.
Methods: Fifty-six hairless mice were divided into two groups: control (no intervention); and carcinogenesis (treated with two doses of azoxymethane at 10 mg/kg during the third and the fourth week and dextran sodium sulfate at 2.5% for seven days in the second, fifth, and eighth week).
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