This gene encodes an E3 ubiquitin-protein ligase, part of the ubiquitin protein degradation system. This imprinted gene is maternally expressed in brain and biallelically expressed in other tissues. Maternally inherited deletion of this gene causes Angelman Syndrome, characterized by severe motor and intellectual retardation, ataxia, hypotonia, epilepsy, absence of speech, and characteristic facies. The protein also interacts with the E6 protein of human papillomavirus types 16 and 18, resulting in ubiquitination and proteolysis of tumor protein p53. Alternative splicing of this gene results in three transcript variants encoding three isoforms with different N-termini. Additional transcript variants have been described, but their full length nature has not been determined. (provided by RefSeq)
Immunogen
UBE3A (AAH09271, 51 a.a. ~ 150 a.a) partial recombinant protein with GST tag. MW of the GST tag alone is 26 KDa.
The ubiquitin protein ligase E3A (UBE3A) functions as E3 ligase in the ubiquitin-proteasome pathway and act as transcriptional coactivator of steroid hormone receptors such as progesterone, estrogen and other hormone receptors. During papilloma virus infection, ubiquitin protein ligase E3A (UBE3A), along with E6 viral protein, plays a vital role in degradation of the cell cycle regulatory protein p53. Anomalistic degradation of p53 can cause cervical cancer. Inactivation or deletion of UBE3A gene leads to the neurodevelopmental disorder Angelman syndrome (AS), while overexpression of maternal UBE3A gene is associated with autism pathogenesis. Therefore UBE3A level has to be properly controlled for normal brain development.
Physical form
Solution in phosphate buffered saline, pH 7.4
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Epigenetic regulation of UBE3A and roles in human neurodevelopmental disorders.
LaSalle JM
Epigenomics, 7(7), 1213-1228 (2015)
An Autism-Linked Mutation Disables Phosphorylation Control of UBE3A.
Yi JJ
Cell, 162(4), 795-807 (2015)
Catalytically Important Residues of E6AP Ubiquitin Ligase Identified Using Acid-Cleavable Photo-Cross-Linkers.
Krist DT and Statsyuk AV
Biochemistry, 54(29), 4411-4414 (2015)
The Angelman syndrome ubiquitin ligase localizes to the synapse and nucleus, and maternal deficiency results in abnormal dendritic spine morphology.
Dindot SV
Human Molecular Genetics, 17(1), 111-118 (2008)
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