Warning: Undefined variable $zfal in C:\Inetpub\vhosts\kidney.de\httpdocs\mlpefetch.php on line 525
Deprecated: str_replace(): Passing null to parameter #3 ($subject) of type array|string is deprecated in C:\Inetpub\vhosts\kidney.de\httpdocs\mlpefetch.php on line 525
Warning: Undefined variable $sterm in C:\Inetpub\vhosts\kidney.de\httpdocs\mlpefetch.php on line 530
Warning: Undefined variable $sterm in C:\Inetpub\vhosts\kidney.de\httpdocs\mlpefetch.php on line 531
English Wikipedia
Nephropedia Template TP (
Twit Text
DeepDyve Pubget Overpricing |
lüll How cells switch HIPK2 on and off Sombroek D; Hofmann TGCell Death Differ 2009[Feb]; 16 (2): 187-94Homeodomain-interacting protein kinase 2 (HIPK2) is an emerging regulator of cell growth and apoptosis in various cell types, tissues and organisms. Previous work indicates that HIPK2 is a potential tumour suppressor and DNA damage-responsive kinase, which phosphorylation-dependently activates the apoptotic programme by engaging diverse downstream targets, including tumour suppressor p53 and the anti-apoptotic transcriptional corepressor C-terminal binding protein. The regulation of HIPK2, however, remained largely obscure. Recent studies show that HIPK2 activity is mainly controlled at the post-transcriptional level through targeted proteolysis. Caspase-dependent processing triggers HIPK2 hyperactivation, whereas the ubiquitin-proteasome system (UPS) keeps HIPK2 in check by targeting it for degradation. Both HIPK2 hyperactivation and HIPK2 degradation are under the control of transcription factor p53. Negative regulation of HIPK2 by the UPS is abolished in response to DNA damage, which facilitates HIPK2 stabilization and activation. Here we discuss these findings in the context of DNA damage signalling and tumour suppression.|Apoptosis[MESH]|Carrier Proteins/*metabolism[MESH]|Caspases/metabolism[MESH]|DNA Damage[MESH]|Humans[MESH]|Nuclear Proteins/metabolism[MESH]|Protein Serine-Threonine Kinases/*metabolism[MESH]|Signal Transduction[MESH]|Tumor Suppressor Protein p53/*metabolism[MESH]|Ubiquitin-Protein Ligases/metabolism[MESH] |