KBTBD13 interacts with Cullin 3 to form a functional ubiquitin ligase.
KBTBD13 interacts with Cullin 3 to form a functional ubiquitin ligase.
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DOI:
10.1016/j.bbrc.2012.04.074
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发表时间:
2012-05-18
影响因子:
3.1
通讯作者:
Maynard E
中科院分区:
文献类型:
--
作者:
Sambuughin N;Swietnicki W;Techtmann S;Matrosova V;Wallace T;Goldfarb L;Maynard E
Autosomal dominant mutations in BTB and Kelch domain containing 13 protein (KBTBD13) are associated with a new type of Nemaline Myopathy (NEM). NEM is a genetically heterogeneous group of muscle disorders. Mutations causing phenotypically distinct NEM variants have previously been identified in components of muscle thin filament. KBTBD13 is a muscle specific protein composed of an N terminal BTB domain and a C terminal Kelch-repeat domain. The function of this newly identified protein in muscle remained unknown. In this study, we show that KBTBD13 interacts with Cullin 3 (Cul3) and the BTB domain mediates this interaction. Using ubiquitination assays, we determined that KBTBD13 participates in the formation of a Cul3 based RING ubiquitin ligase (Cul3-RL) capable of ubiquitin conjugation. Confocal microscopy of transiently expressed KBTBD13 revealed its co-localization with ubiquitin. Taken together, our results demonstrate that KBTBD13 is a putative substrate adaptor for Cul3-RL that functions as a muscle specific ubiquitin ligase, and thereby implicate the ubiquitin proteasome pathway in the pathogenesis of KBTBD13-associated NEM.
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影响因子:
56.9
作者:
Kamura, T;Koepp, DM;Conway, JW
通讯作者:
Conway, JW
影响因子:
3.4
作者:
Schuck, P
通讯作者:
Schuck, P
DOI:
10.1073/pnas.96.16.9124
发表时间:
1999-08-03
影响因子:
11.1
作者:
Galan, JM;Peter, M
通讯作者:
Peter, M
影响因子:
3.4
作者:
Olive, Montse;Goldfarb, Lev G.;Sambuughin, Nyamkhishig
通讯作者:
Sambuughin, Nyamkhishig
影响因子:
12.3
作者:
Stogios, Peter J;Downs, Gregory S;Jauhal, Jimmy J S;Nandra, Sukhjeen K;Prive, Gilbert G
通讯作者:
Prive, Gilbert G