Title : Oxidative stress-induced ubiquitination of RCAN1 mediated by SCFbeta-TrCP ubiquitin ligase.

Pub. Date : 2008 Jul

PMID : 18575781






13 Functional Relationships(s)
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1 H2O2 induced ubiquitination of RCAN1 at the same concentrations as those causing a decrease in RCAN1 in HEK293T cells. Hydrogen Peroxide regulator of calcineurin 1 Homo sapiens
2 H2O2 induced ubiquitination of RCAN1 at the same concentrations as those causing a decrease in RCAN1 in HEK293T cells. Hydrogen Peroxide regulator of calcineurin 1 Homo sapiens
3 beta-TrCP, the F-box protein component of SCF ubiquitin ligase, interacted with RCAN1 in response to H2O2 stimulation. Hydrogen Peroxide regulator of calcineurin 1 Homo sapiens
4 In vitro ubiquitination assay showed that SCFbeta-TrCP but not SCFFBW4 increased ubiquitination of RCAN1, dependent on H2O2 stimulation. Hydrogen Peroxide regulator of calcineurin 1 Homo sapiens
5 In addition, knockdown of beta-TrCP by siRNA abolished the H2O2-induced decrease in RCAN1 in HEK293T cells. Hydrogen Peroxide regulator of calcineurin 1 Homo sapiens
6 We further examined whether RCAN1 undergoes ubiquitination by H2O2 in primary neurons, similarly to that in HEK293T cells. Hydrogen Peroxide regulator of calcineurin 1 Homo sapiens
7 An H2O2-induced decrease in RCAN1 was exhibited also in hippocampal and cortical neurons. Hydrogen Peroxide regulator of calcineurin 1 Homo sapiens
8 Ubiquitination of RCAN1 was induced by 500 muM H2O2, the concentration at which H2O2 induced a decrease in RCAN1 in primary neurons. Hydrogen Peroxide regulator of calcineurin 1 Homo sapiens
9 Ubiquitination of RCAN1 was induced by 500 muM H2O2, the concentration at which H2O2 induced a decrease in RCAN1 in primary neurons. Hydrogen Peroxide regulator of calcineurin 1 Homo sapiens
10 Ubiquitination of RCAN1 was induced by 500 muM H2O2, the concentration at which H2O2 induced a decrease in RCAN1 in primary neurons. Hydrogen Peroxide regulator of calcineurin 1 Homo sapiens
11 Ubiquitination of RCAN1 was induced by 500 muM H2O2, the concentration at which H2O2 induced a decrease in RCAN1 in primary neurons. Hydrogen Peroxide regulator of calcineurin 1 Homo sapiens
12 These results suggest that H2O2 induces SCF beta-TrCP-mediated ubiquitination of RCAN1, leading to a decrease in the protein level of RCAN1. Hydrogen Peroxide regulator of calcineurin 1 Homo sapiens
13 These results suggest that H2O2 induces SCF beta-TrCP-mediated ubiquitination of RCAN1, leading to a decrease in the protein level of RCAN1. Hydrogen Peroxide regulator of calcineurin 1 Homo sapiens