Article
Interference with ubiquitination in CFTR modifies stability of core glycosylated and cell surface pools.
Molecular and cellular biology - 1 Jul 2014
Lee Seakwoo, Henderson Mark J, Schiffhauer Eric, Despanie Jordan, Henry Katherine, Kang Po Wei, Walker Douglas, McClure Michelle L, Wilson Landon, Sorscher Eric J, Zeitlin Pamela L
Abstract excerpt
It is recognized that both wild-type and mutant CFTR proteins undergo ubiquitination at multiple lysines in the proteins and in one or more subcellular locations. We hypothesized that ubiquitin is added to specific sites in wild-type CFTR to stabilize it and at other sites to signal for proteolysis. Mass spectrometric analysis of wild-type CFTR identified ubiquitinated lysines 68, 710, 716, 1041, and 1080. We...
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