A little sugar goes a long way: the cell biology of O-GlcNAc.
A little sugar goes a long way: the cell biology of O-GlcNAc.
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DOI:
10.1083/jcb.201501101
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发表时间:
2015-03-30
期刊:
影响因子:
--
通讯作者:
Hanover JA
中科院分区:
文献类型:
--
作者:
Bond MR;Hanover JA
Unlike the complex glycans decorating the cell surface, the O-linked β-N-acetyl glucosamine (O-GlcNAc) modification is a simple intracellular Ser/Thr-linked monosaccharide that is important for disease-relevant signaling and enzyme regulation. O-GlcNAcylation requires uridine diphosphate–GlcNAc, a precursor responsive to nutrient status and other environmental cues. Alternative splicing of the genes encoding the O-GlcNAc cycling enzymes O-GlcNAc transferase (OGT) and O-GlcNAcase (OGA) yields isoforms targeted to discrete sites in the nucleus, cytoplasm, and mitochondria. OGT and OGA also partner with cellular effectors and act in tandem with other posttranslational modifications. The enzymes of O-GlcNAc cycling act preferentially on intrinsically disordered domains of target proteins impacting transcription, metabolism, apoptosis, organelle biogenesis, and transport.
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期刊:
The Journal of biological chemistry
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