Deficiency of adenosine deaminase 2 is characterized by vasculitis, early-onset strokes, immunodeficiency, and bone marrow failure. We describe a novel pathogenic mutation affecting a consensus N-linked glycosylation sequence and illustrate the essential role of glycosylation in the biology of ADA2.
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http://dx.doi.org/10.1016/j.jaci.2018.05.038 | DOI Listing |
Sci Rep
December 2024
Department of Respiratory Medicine, Hunan Provincial People's Hospital (The First-Affiliated Hospital of Hunan Normal University), No. 61 Jiefang Xi Road, Changsha, Hunan, 410219, China.
Pulmonary arterial hypertension (PAH) is a serious medical condition that causes a failure in the right heart. Two-pore channel 2 (TPC2) is upregulated in PAH, but its roles in PAH remain largely unknown. Our investigation aims at the mechanisms by which TPC2 regulates PAH development.
View Article and Find Full Text PDFJ Inherit Metab Dis
January 2025
Department of Internal Medicine, Division of Endocrinology and Metabolic Disease, Maastricht University Medical Center+, Maastricht, The Netherlands.
Hereditary fructose intolerance (HFI) is characterized by liver damage and a secondary defect in N-linked glycosylation due to impairment of mannose phosphate isomerase (MPI). Mannose treatment has been shown to be an effective treatment in a primary defect in MPI (i.e.
View Article and Find Full Text PDFJ Microbiol Immunol Infect
December 2024
Animal Disease Diagnostic Center, College of Veterinary Medicine, National Pingtung University of Science and Technology, Pingtung, 91201, Taiwan; Department of Veterinary Medicine, College of Veterinary Medicine, National Pingtung University of Science and Technology, Pingtung, 91201, Taiwan; Research and Technical Center for Sustainable and Intelligent Swine Production, National Pingtung University of Science and Technology, Pingtung, 91201, Taiwan. Electronic address:
Background/purpose: Porcine reproductive and respiratory syndrome virus (PRRSV) is a pathogen with a negative economic impact on the global swine industry. In 2019, a suspected highly pathogenic strain, NPUST-108-929/2019 (108-929), was isolated from a pig farm in Pingtung with an outbreak of high mortality and analyzed. The characteristics of PRRSV 108-929 have barely been studied.
View Article and Find Full Text PDFJ Biol Chem
December 2024
Cancer Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, California 92037, United States. Electronic address:
Missense mutations in the EPHA1 receptor tyrosine kinase have been identified in Alzheimer's patients. To gain insight into their potential role in disease pathogenesis, we investigated the effects of four of these mutations. We show that the P460L mutation in the second fibronectin type III (FN2) domain drastically reduces EPHA1 cell surface localization while increasing tyrosine phosphorylation of the cell surface localized receptor.
View Article and Find Full Text PDFInt J Biol Macromol
December 2024
State Key Laboratory of Pharmaceutical Biotechnology, The University of Hong Kong, 21 Sassoon Road, Pokfulam 999077, Hong Kong, China; Department of Medicine, School of Clinical Medicine, The University of Hong Kong, 21 Sassoon Road, Pokfulam 999077, Hong Kong, China; Department of Pharmacology and Pharmacy, The University of Hong Kong, 21 Sassoon Road, Pokfulam 999077, Hong Kong, China. Electronic address:
β-Klotho (KLB), a type I transmembrane protein, serves as an obligate co-receptor determining the tissue-specific actions of endocrine fibroblast growth factors (FGFs). Despite accumulative evidence suggesting the occurrence of N-glycosylation in the KLB protein, the precise N-glycosites, glycoforms, and the impacts of N-glycosylation on the expression and function of the KLB protein remain unexplored. Employing a mass spectrometry-based approach, a total of 12 N-glycosites displaying heterogeneous site occupancy and glycoforms were identified within the extracellular region of the recombinant human KLB protein.
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