WebApr 10, 2024 · The activators BMAL1 and CLOCK heterodimerize and induce the transcription of thousands of clock-regulated genes via binding to E-boxes. PERIOD (Per) 1, 2 and 3 and CRYPTOCHROME (Cry) 1 and 2 are among these and they function as repressors of BMAL1:CLOCK transcriptional activity. This is subsequently followed by … WebThe circadian clock system exists in most organs and regulates diverse physiological processes, including growth. Here, we used a prostate-specific Bmal1-knockout mouse …
BMAL1 and CLOCK, two essential components of the circadian clock…
WebIn the present study, we report that the core clock genes Bmal1 and Clock play a pro-proliferative role in HCC by controlling cell cycle regulators. Down-regulating Bmal1 and Clock induced HCC cytotoxicity, activated … WebSep 1, 2024 · The molecular mechanisms responsible for sleep deprivation–mediated clock gene expression changes are still being investigated (Fig. 1).It seems unlikely that in this context, increases in Per1 and Per2 are caused by the CLOCK::BMAL1 or NPAS2::BMAL1 complex (Fig. 1 a). The binding of these complexes to E-boxes in the promoter region of … books narrated by richard armitage
BMAL1 and CLOCK proteins in regulating UVB‐induced apoptosis …
We then explored how depletion of BMAL1 affects end-resection. As chromatin remodeling regulated by histone modification, in particular acetylation of Histone H4 (H4Ac), is critical for DNA end-resection in eukaryotes and HR-mediated DSBs repair [12, 42, 43]. CLOCK has an intrinsic acetyltransferase domain … See more To find out whether BMAL1 directly participates in DSBR, human sarcoma U2OS cells were treated with Zeocin, a radio-mimetic chemical that predominantly induces DSBs [22, … See more DNA end-resection is the key event that controls the DSB repair pathway choice, which generates the long ssDNA leading cells prone to HR-mediated repair [37]. Because BMAL1 … See more We then explored how depletion of BMAL1 affects DSBR. BMAL1 was knocked down in U2OS, the amount of DSBs was determined by detecting DNA fragments released by DSBs and the level of phosphorylation of … See more It is well recognized that cancer cells that are deficient in HR-mediated DSBR are frequently more sensitive to killing by chemotherapy drugs such as etoposide or irradiation than the … See more WebJan 4, 2024 · Author summary Circadian clocks in mammals rely on the heterodimeric transcription factor CLOCK:BMAL1 to drive rhythmic gene expression and allow biological functions to perform best at the most … WebMay 1, 2009 · CLOCK:BMAL1 regulates the circadian expression of NAMPT (nicotinamide phosphoribosyltransferase), an enzyme that provides a rate-limiting step in the NAD+ salvage pathway. SIRT1 is recruited to the Nampt promoter and contributes to the circadian synthesis of its own coenzyme. Using the specific inhibitor FK866, we demonstrated that … harvey schiller michael jordan