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Toll/interleukin-1 receptor-only genes contribute to immune responses in maize.
Plant Physiol
January 2025
The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education; Shandong Key Laboratory of Precision Molecular Crop Design and Breeding; School of Life Sciences, Shandong University, Qingdao 266237, China.
Proteins with Toll/interleukin-1 receptor (TIR) domains are widely distributed in both prokaryotes and eukaryotes, serving as essential components of immune signaling. Although monocots lack the major TIR-nucleotide-binding (NB)-leucine-rich repeat (LRR)-type (TNL) immune receptors, they possess a small number of TIR-only proteins, the function of which remains largely unknown. In the monocot maize (Zea mays), there are three conserved TIR-only genes in the reference genome, namely ZmTIR1 to ZmTIR3.
View Article and Find Full Text PDFFunctional analysis of AtTX11/12 TIR-domain proteins identifies key residues for basal and temperature-insensitive growth inhibition.
Biochem Biophys Res Commun
January 2025
Department of Biology, Chosun University, Gwangju, 61452, Republic of Korea. Electronic address:
Plant Toll/interleukin-1 receptor (TIR) domains function as NADases and ribosyl-transferases generating second messengers that trigger hypersensitive responses. TIR-X (TX) proteins contain a TIR domain with or without various C-terminal domains and lack the canonical nucleotide-binding site and leucine-rich repeat domain. In a previous study, we identified an Arabidopsis thaliana activation-tagging line with severe growth defects caused by the overexpression of the AtTX12 gene.
View Article and Find Full Text PDFMyelodysplastic syndromes (MDS) are age-related diseases characterized by bone marrow (BM) dysfunction and an increased risk of developing acute leukemia. While there is growing evidence highlighting the crucial role of the BM microenvironment (BMME) in MDS, the specific influence of inflammation on BMME changes, as well as the potential benefits of targeting cytokines therapeutically, remain to be elucidated. We previously found interleukin-1 (IL-1) to be a driver of aging phenotypes of BMME and hematopoietic stem and progenitor cells (HSPCs).
View Article and Find Full Text PDFErdheim Chester Disease with Calvarial Involvement: A rare case of Histiocytosis.
Turk Neurosurg
March 2024
SBÜ Gaziosmanpaşa Eğitim ve Araştırma Hastanesi.
Erdheim-Chester Disease is a rare systemic xanthogranulomatous infiltrating disease, characterized by lipid-laden histiocytes accumulating in various organs and almost always in bones. Etiology of the disease is still unknown. It may involve various organs and systems, such as musculoskeletal, cardiac, pulmonary, renal, gastrointestinal and central nervous system (CNS) as well as the skin.
View Article and Find Full Text PDFStructure-guided insights into TIR-mediated bacterial and eukaryotic immunity.
Structure
January 2025
Structural Biology Program, Memorial Sloan-Kettering Cancer Center, New York, NY 10065, USA. Electronic address:
Within the course of evolution, TIR (Toll/interleukin-1 receptor) domains acquired a myriad of functional specificities. This has significantly added to their well-established roles in innate immune signaling. These additional functions include nicotinamide adenine dinucleotide (NAD)(P) hydrolase, RNA/DNA nuclease (in plants), CN (cyclic nucleotide) cyclase, and base exchanger activities.
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