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Series GSE165647 Query DataSets for GSE165647
Status Public on Jun 16, 2021
Title CRY2 missense mutations suppress P53 and enhance cell growth
Organism Mus musculus
Experiment type Expression profiling by high throughput sequencing
Summary Disruption of circadian rhythms increases the risk of several types of cancer. Mammalian cryptochromes (CRY1 and CRY2) are circadian transcriptional repressors that are related to DNA repair enzymes. While CRYs lack DNA repair activity, they modulate the transcriptional response to DNA damage, and CRY2 can promote SCFFBXL3-mediated ubiquitination of c-MYC and other targets. Here, we characterize five mutations in CRY2 observed in human cancers in The Cancer Genome Atlas. We demonstrate that two orthologous mutations of mouse CRY2 (D325H and S510L) accelerate the growth of primary mouse fibroblasts expressing high levels of c-MYC. Neither mutant affects steady state levels of overexpressed c-MYC, and they have divergent impacts on circadian rhythms and on the ability of CRY2 to interact with SCFFBXL3. Unexpectedly, stable expression of either CRY2 D325H or of CRY2 S510L robustly suppresses P53 target gene expression, suggesting that this is the primary mechanism by which they influence cell growth.
 
Overall design Comparisons of the transcriptomes of Cry2−/− mouse embryonic fibroblasts (MEFs) expressing c-MYC and WT or mutant Cry2 (D325H, S510L, or F428D), at low or high cell density.
 
Contributor(s) Chan AB, Lamia K, Ibrahim LH, Bollong M
Citation(s) 34183418
Submission date Jan 27, 2021
Last update date Sep 15, 2021
Contact name Lara Ibrahim
Organization name Scripps Research
Street address 10550 N Torrey Pines Rd
City San Diego
State/province California
ZIP/Postal code 92037
Country USA
 
Platforms (1)
GPL23479 BGISEQ-500 (Mus musculus)
Samples (30)
GSM5047491 Sample 1: empty vector control; low density – Biological replicate 1
GSM5047492 Sample 2: empty vector control; low density – Biological replicate 2
GSM5047493 Sample 3: empty vector control; low density – Biological replicate 3
Relations
BioProject PRJNA695264
SRA SRP303502

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Supplementary file Size Download File type/resource
GSE165647_chan.et.al.TPM.all.xlsx 7.8 Mb (ftp)(http) XLSX
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