کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10815181 1058457 2014 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Regulation of C1-Ten protein tyrosine phosphatase by p62/SQSTM1-mediated sequestration and degradation
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی زیست شیمی
پیش نمایش صفحه اول مقاله
Regulation of C1-Ten protein tyrosine phosphatase by p62/SQSTM1-mediated sequestration and degradation
چکیده انگلیسی
C1-Ten is a member of the tensin family of focal adhesion molecules but recent studies suggest it plays a more active role in many biological processes because of its potential association with diabetes and cancers. However, relatively little is known about the regulation of C1-Ten, such as changes in its protein level or cellular localization. The cellular localization of C1-Ten is unique because it is expressed in cytoplasmic puncta but nothing is known about these puncta. Here, we show that p62 sequestrates C1-Ten into puncta, making C1-Ten diffuse into the cytoplasm upon p62 depletion. More importantly, p62-mediated C1-Ten sequestration promoted C1-Ten ubiquitination and proteasomal degradation. p62-mediated protein reduction was specific to C1-Ten, and not other tensins such as tensin1 and tensin3. Thus, our results link cellular localization of C1-Ten to an off-switch site for C1-Ten. Additionally, p62 expression increased but C1-Ten protein decreased during muscle differentiation, supporting a role for p62 as a physiological regulator of C1-Ten.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Cellular Signalling - Volume 26, Issue 11, November 2014, Pages 2470-2480
نویسندگان
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