The process involves removing a nucleus from a somatic, or body, cell, and inserting it into an egg, or oocyte, that has had its own nucleus removed.
In light of these data, we have hypothesized that the disruption of sperm fertilizing potential and the concomitant presence of high levels of DNA damage in the sperm nucleus involves a common causative mechanism in the form of oxidative stress [19].
However, complex DNA damage response (DDR) signaling is not confined to the nucleus, and involves a plethora of PTM mechanisms including phosphorylation, acetylation, ubiquitination and sumoylation along with transcriptional and post-transcriptional regulation [ 26].
The circadian rhythm, including the maintenance of sleep and wakefulness, involves a complex network with multiple nuclei and neurotransmitter systems.
Recent studies indicate that elongation of the sperm nucleus involves an extensive modulation of the NE.
Both were fit with a cooperative assembly mechanism involving a weak dimer nucleus, similar to EcFtsZ but with slower kinetics.
Classically, cervical spondylosis is believed to involve a combination of nucleus pulposus protrusion, osteophyte formation, and fibrosis, most frequently effecting the C5/6, C6/7 and C4/5 levels, in order of decreasing occurrence [ 50, 51].
An alternative model for the entry of full-length EGFR family members into the nucleus involving a passage of these receptors into the nucleoplasm through a Sec61 translocon in the inner nuclear membrane has also been proposed.
An example is the (d, p) stripping reaction involving an aluminum-27 nucleus and a deuteron.
Sleep is regulated by two main processes: the sleep homeostatic drive, influenced by experienced durations of sleep and wakefulness, and the circadian system, an intrinsic pacemaker involving a pathway from the suprachiasmatic nucleus to the hypothalamus [ 9].
