Next, we examined whether ENST00000480739 may regulate OS-9 expression in PDAC cells.
This finding may have broader importance because SPY orthologs are conserved in prokaryotes and eukaryotes, thus suggesting that intracellular O-fucosylation may regulate a wide range of biological processes in diverse organisms.
Thus, O-GlcNAc may regulate aspects of neuronal development in concert with phosphorylation.
Chondroitin 6- O-sulfate may regulate the maturation of parvalbumin-expressing interneurons through the incorporation of Otx2 [ 116], which regulates ocular dominance plasticity.
There is a considerable body of evidence to suggest that O-GlcNAc may regulate cellular protein phosphorylation by competing for the same serines/threonines (Hart et al, 1995, 2007; Love and Hanover, 2005).
The reduced phosphorylation at S438 on S395A Tas1 as compared with that of WT TAB1 could be related to the reduced activation of JNK1/2 as observed earlier, although its not yet clear how TAB1 O-GlcNAcylation may regulate JNK1/2 activity towards the TAB1 S438 phosphorylation site.
This suggests that O-GlcNAc at S395 may regulate TAB1 phosphorylation at S438.
By inhibiting the phosphorylation of Tyr, O-GlcNAcylation of Thr271 may regulate microtubule formation and/or interaction with ligands, such as tau, microtubule-associated proteins 1, 2 (MAPs-1, 2), which are also O-GlcNAcylated.
Background: O-linked N-acyl-glycosylation may regulate protein function by competing with phosphorylation of serine residues.
However, the functional importance of O-GlcNAc is only just emerging, with evidence to suggest that it may regulate protein activity in a manner analogous (and complementary) to phosphorylation [ 7].
Phytophagous insects may regulate primary production.
