Further crystallographic and biochemical analyses show a Shigella cell wall O-antigen fragment to bind to an endorhamnosidase active site located between two β-helix subunits each anchoring one catalytic carboxylate.
Time-lapse imaging revealed striking differences between the two β-catenin mutant cell lines and WT.
These differences in palmitate-induced apoptosis between α and β cells were confirmed at three different glucose concentrations, i.e. 6.1 mM, 10 mM and 20 mM.
For instance, an intersection between the two β-catenin pools may serve to integrate spatial organization of cells (cell-cell adhesion) with gene expression (Wnt signaling).
Given the role of β-Catenin in progenitor cells, its distribution between two daughter cells was analysed during GNP cell division.
For evaluation of the impact by proliferation of pre-existing β cells, three parameters were determined: β cell expansion, proliferation rates, and the mode of β cell replication.
About 12% of the CFY ducts contained induced β cells, typically between one and three cells per duct.
The tight relationships between the major endocrine islet cells are supported by the tri-laminar architecture of human islets whereby one layer of β cells appears to be sandwiched between two α cell enriched layers [ 21].
However, relatively little consideration has been given to the possibility that the presence of β-catenin in both pathways may point to a mechanistic link between two core cell processes of fundamental importance in their own right [4], [24].
In β cells, proinsulin is processed into insulin and C-peptide by three key proteases along two routes.
