Document Detail


A non-canonical UBA-UBL interaction forms the linear-ubiquitin-chain assembly complex.
MedLine Citation:
PMID:  22430200     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
HOIL-1L and its binding partner HOIP are essential components of the E3-ligase complex that generates linear ubiquitin (Ub) chains, which are critical regulators of NF-κB activation. Using crystallographic and mutational approaches, we characterize the unexpected structural basis for the specific interaction between the Ub-like domain (UBL) of HOIL-1L and the Ub-associated domain (UBA) of HOIP. Our data indicate the functional significance of this non-canonical mode of UBA-UBL interaction in E3 complex formation and subsequent NF-κB activation. This study highlights the versatility and specificity of protein-protein interactions involving Ub/UBLs and their cognate proteins.
Authors:
Hirokazu Yagi; Kazuhiro Ishimoto; Takeshi Hiromoto; Hiroaki Fujita; Tsunehiro Mizushima; Yoshinori Uekusa; Maho Yagi-Utsumi; Eiji Kurimoto; Masanori Noda; Susumu Uchiyama; Fuminori Tokunaga; Kazuhiro Iwai; Koichi Kato
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2012-05-01
Journal Detail:
Title:  EMBO reports     Volume:  13     ISSN:  1469-3178     ISO Abbreviation:  EMBO Rep.     Publication Date:  2012 May 
Date Detail:
Created Date:  2012-05-01     Completed Date:  2012-08-29     Revised Date:  2013-05-02    
Medline Journal Info:
Nlm Unique ID:  100963049     Medline TA:  EMBO Rep     Country:  England    
Other Details:
Languages:  eng     Pagination:  462-8     Citation Subset:  IM    
Affiliation:
Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe-dori, Mizuho-ku, Nagoya 467-8603, Japan.
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MeSH Terms
Descriptor/Qualifier:
Carrier Proteins / chemistry,  metabolism
Cell Line
Circular Dichroism
Humans
Immunoprecipitation
Magnetic Resonance Spectroscopy
NF-kappa B / metabolism
Protein Binding
Protein Structure, Secondary
Surface Plasmon Resonance
Ubiquitin / chemistry*,  metabolism*
Ubiquitin-Protein Ligases / chemistry*,  metabolism*
Ultracentrifugation
Chemical
Reg. No./Substance:
0/Carrier Proteins; 0/NF-kappa B; 0/RNF31 protein, human; 0/Ubiquitin; EC 6.3.2.19/HOIL-1 protein, human; EC 6.3.2.19/Ubiquitin-Protein Ligases

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