EC Number |
Posttranslational Modification |
Reference |
---|
2.4.1.212 | glycoprotein |
HAS activity can be modulated by post-translational modification, such as phosphorylation and N-glycosylation |
704558 |
2.4.1.212 | more |
HAS2 can be O-GlcNAcylated on serine 221, which strongly increases its activity and its stability to half-life of over 5 h versus 17 min without O-GlcNAcylation |
722782 |
2.4.1.212 | more |
HAS2 is ubiquitinated on Lys190, HAS2 is both mono- and polyubiquitinated |
722678 |
2.4.1.212 | more |
the treatments of plasma membranes or microsomal membranes with phosphatases or N-glycosidase F reveals that also HAS activity in internal vesicles can be modulated |
736724 |
2.4.1.212 | phosphoprotein |
AMP-activated protein kinase, AMPK, phosphorylates HAS2 at Thr110, which inhibits its enzymatic activity. Isoenzymes HAS1 and HAS3 are not modified by the kinase |
722741 |
2.4.1.212 | phosphoprotein |
ERK-mediated phosphorylation |
692996 |
2.4.1.212 | phosphoprotein |
ERK-mediated serine phosphorylation of all the three HAS isozymes increases their specific activity. AMP activated protein kinase (AMPK) is considered a sensor of the energy status of the cell and is activated by low ATP:AMP ratio, AMPK leads to the inhibition of hyaluronan secretion by HAS2 phosphorylation at residue Thr110 |
736724 |
2.4.1.212 | phosphoprotein |
HAS activity can be modulated by post-translational modification, such as phosphorylation and N-glycosylation |
704558 |
2.4.1.212 | phosphoprotein |
human HAS3 expressed in COS-7 cells is serine-phosphorylated. This phosphorylation can be enhanced by a number of effectors, most significantly by a membrane-permeable analogue of cAMP. Under non-stimulating conditions, the FLAGHAS3 is phosphorylated to a stoichiometry of approx. 0.11 in COS-7 cells and, following maximal stimulation with 8-(4-chlorophenylthio)-cAMP, phosphorylation is increased to approximately 0.32 mol of phosphate/mol of protein |
671862 |
2.4.1.212 | ubiquitination |
the enzyme is regulated by post-translational modifications, including ubiquitination. The deubiquitinating enzymes USP4 and USP17 target hyaluronan synthase 2 and differentially affect its function |
759874 |