Watch out epigenomic evil-doers, histone H3 has a new sidekick to help it keep gene regulation in shape. By day, serotonin can be found in its traditional role as a neurotransmitter; being released by cells of the nervous system and binding to specific receptors to impact a wide range of functions, from cognition to gut motility. […]
- Chromatin
Think Different – Alternatively Spliced Histone Variant Points to Epigenetic Control of Telomere Lengthening
While many prefer matters to be straightforward, some prefer to think “outside the box” and conjure up an alternative to the norm. Cancer cells are much the same; while most remain on the straight and narrow and employ the telomerase holoenzyme complex to maintain their telomeres, a significant fraction go their own way and use […]
EZH2 Gets a TAD Involved in Cancer
In the Venn diagram of epigenetics and cancer biology, EZH2 sits perfectly in the overlap. This methyltransferase is responsible for tri-methylation of lysine 27 on histone 3 (H3K27me3) but is also an oncogene, mutated in a variety ofhumancancers. H3K27me3 is a marker of inactive chromatin domains, specifically topologically associating domains (TADs), and has been linked to […]
When Two Is Not Better Than One: Duplicitous Dipeptides Disrupt Heterochromatin to Promote Neurodegeneration
While some protein aficionados may believe that the only thing better than one peptide is a dipeptide, a study from the lab of Leonard Petrucelli (Mayo Clinic, USA) recently established that the expansion of double-dealing dipeptide repeats promotes the development of neurodegenerative disease via the disruption of heterochromatin structure and function. The diseases in question, […]
Epigenetic Editing Wipes Fear Memory in a Sex-Specific Manner
Whether it’s the sure thing you bet on for the Super Bowl or the grant that keeps escaping your grasp, some memories are best forgotten. However, memories are complicated to say the least, and with most of us left wanting to retain a few of the more enjoyable examples, a targeted editing approach would certainly help. Thankfully, new […]