farnesyl-diphosphate kinase / farnesyl diphosphate kinase activity / succinyl-CoA binding / ITP biosynthetic process / isoprenoid metabolic process / Hydrolases; Acting on ester bonds; Site specific endodeoxyribonucleases: cleavage is not sequence specific (deleted sub-subclass) / phosphotransferase activity, phosphate group as acceptor / DNA nuclease activity / acetyl-CoA catabolic process / nucleoside triphosphate biosynthetic process ...farnesyl-diphosphate kinase / farnesyl diphosphate kinase activity / succinyl-CoA binding / ITP biosynthetic process / isoprenoid metabolic process / Hydrolases; Acting on ester bonds; Site specific endodeoxyribonucleases: cleavage is not sequence specific (deleted sub-subclass) / phosphotransferase activity, phosphate group as acceptor / DNA nuclease activity / acetyl-CoA catabolic process / nucleoside triphosphate biosynthetic process / acetyl-CoA binding / nucleoside diphosphate metabolic process / Ribavirin ADME / coenzyme A binding / protein histidine kinase activity / regulation of fatty acid biosynthetic process / apoptotic DNA fragmentation / nucleoside-diphosphate kinase / 3'-5'-DNA exonuclease activity / Interconversion of nucleotide di- and triphosphates / UTP biosynthetic process / CTP biosynthetic process / protein hexamerization / Azathioprine ADME / DNA catabolic process / nucleoside diphosphate kinase activity / GTP biosynthetic process / 加水分解酵素; エステル加水分解酵素; 5'-リン酸モノエステル産生エンドデオキシリボヌクレアーゼ / histidine kinase / ribosomal small subunit binding / lactation / positive regulation of epithelial cell proliferation / DNA endonuclease activity / ADP binding / ruffle membrane / endocytosis / kinase activity / GDP binding / nervous system development / regulation of apoptotic process / early endosome / cell differentiation / non-specific serine/threonine protein kinase / negative regulation of cell population proliferation / magnesium ion binding / DNA binding / RNA binding / extracellular exosome / ATP binding / membrane / identical protein binding / nucleus / cytoplasm / cytosol 類似検索 - 分子機能
ジャーナル: Nat Chem / 年: 2025 タイトル: Nucleoside diphosphate kinase A (NME1) catalyses its own oligophosphorylation. 著者: Arif Celik / Felix Schöpf / Christian E Stieger / Sarah Lampe / Björn Hanf / Jeremy A M Morgan / Max Ruwolt / Fan Liu / Christian P R Hackenberger / Daniel Roderer / Dorothea Fiedler / 要旨: Protein phosphorylation is a central signalling mechanism in eukaryotic cells. The scope of this post-translational modification includes protein pyro- and polyphosphorylation. Here we report the ...Protein phosphorylation is a central signalling mechanism in eukaryotic cells. The scope of this post-translational modification includes protein pyro- and polyphosphorylation. Here we report the discovery of another mode of phosphorylation: protein oligophosphorylation. Using site-specifically phosphorylated and pyrophosphorylated nucleoside diphosphate kinase A (NME1), the effects of these modifications on enzyme activity were investigated. Phosphorylation, and more so pyrophosphorylation, on Thr94 reduced the nucleoside diphosphate kinase activity. Nevertheless, both phosphoprotein and pyrophosphoprotein catalysed their own oligophosphorylation-up to the formation of a hexaphosphate chain-using ATP as a cofactor. Oligophosphorylation was critically dependent on the catalytic histidine residue His118, and cryogenic electron microscopy analysis of the modified proteins suggests an intramolecular phosphoryl transfer mechanism. Oligophosphorylation of NME1 in biochemical samples, and in cell lysates, was further confirmed using mass spectrometry, and was found to promote a new set of protein interactions. Our results highlight the complex nature of phosphoregulation, and the methods described here provide the opportunity to investigate the impact of this unusual modification in the future.