While regulation of PTEN by miR-22 is likely to occur in many different cell types, regulation of ERα will take place only in those tissues that express the ERα receptor.
You can make a plausible argument for many different forms of regulation, and there has been plenty of debate over the various details of re-regulation.
For a metabolic network as complex as that in E. coli, there can be many different ways of regulation to achieve the same goal [60].
Many different mechanisms of regulation have been identified affecting both cells and soluble mediators (Table 1).
It is an ambitious project to describe a comprehensive model of intestinal sugar absorption considering the many different levels of regulation it involves.
There are many different levels of regulation in the Wnt signaling pathway at many different places: outside cells, at the outer surface of the cell membrane, at the inner surface of the cell membrane, in the cytoplasm, and in the nucleus [ 25].
Gene expression in eukaryotes is a highly coordinated process involving regulation at many different levels, among which the regulation of transcription is one of the most important.
Although crucial in many different species, post-transcriptional regulation is especially the major mechanism for regulation of gene expression in a group of unicellular parasites called trypanosomatids.
This is consistent with a model of gene regulation in which multiple factors contribute in macromolecular complexes and in many different stages of cell regulation such as signaling, transport, and so on.
Matthew D. Shawkey, a biologist at the University of Akron in Ohio who conducted some of the most telling analysis of the melanosome-iridescence relationship, noted that modern birds use their feathers for many different things, including flight, regulation of body temperature and mate-attracting displays.
