期刊
SCIENTIFIC REPORTS
卷 6, 期 -, 页码 -出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/srep26419
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资金
- BBSRC
- NIH [U54HL127624, U54CA189201, R01GM098316]
- Bloodwise
- FMHS Stepping Stones Fellowship
- Wellcome
- University of Manchester Strategic Fund
- GSK
- AZ
- Manchester Collaborative Centre for Inflammation Research
- MRC [MR/N00583X/1, MR/M008908/1, MR/L00254X/1, MR/M008959/1] Funding Source: UKRI
- Medical Research Council [MR/M008959/1, MR/M008908/1, MR/L00254X/1, MR/N00583X/1] Funding Source: researchfish
- Wellcome Trust [107851/Z/15/Z] Funding Source: researchfish
The glucocorticoid receptor (GR), a nuclear receptor and major drug target, has a highly conserved minor splice variant, GR gamma, which differs by a single arginine within the DNA binding domain. GR gamma, which comprises 10% of all GR transcripts, is constitutively expressed and tightly conserved through mammalian evolution, suggesting an important non-redundant role. However, to date no specific role for GR gamma has been reported. We discovered significant differences in subcellular localisation, and nuclear-cytoplasmic shuttling in response to ligand. In addition the GR gamma transcriptome and protein interactome was distinct, and with a gene ontology signal for mitochondrial regulation which was confirmed using Seahorse technology. We propose that evolutionary conservation of the single additional arginine in GR gamma is driven by a distinct, non-redundant functional profile, including regulation of mitochondrial function.
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