DC Field | Value | Language |
---|---|---|
dc.contributor.author | Wang, J | ko |
dc.contributor.author | Song, Ji-Joon | ko |
dc.contributor.author | Seong, IS | ko |
dc.contributor.author | Franklin, MC | ko |
dc.contributor.author | Kamtekar, S | ko |
dc.contributor.author | Eom, SH | ko |
dc.contributor.author | Chung, Chin Ha | ko |
dc.date.accessioned | 2013-03-04T15:01:24Z | - |
dc.date.available | 2013-03-04T15:01:24Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2001-11 | - |
dc.identifier.citation | STRUCTURE, v.9, no.11, pp.1107 - 1116 | - |
dc.identifier.issn | 0969-2126 | - |
dc.identifier.uri | http://hdl.handle.net/10203/83012 | - |
dc.description.abstract | Background: The bacterial heat shock locus ATPase HslU is an AAA(+) protein that has structures known in many nucleotide-free and -bound states. Nucleotide is required for the formation of the biologically active HslU hexameric assembly. The hexameric HslU ATPase binds the dodecameric HsIV peptidase and forms an ATP-dependent HsIVU protease. Results: We have characterized four distinct HsIU conformational states, going sequentially from open to closed: the empty, SO4, ATP, and ADP states. The nucleotide binds at a cleft formed by an alpha/beta domain and an alpha -helical domain in HslU. The four HslU states differ by a rotation of the alpha -helical domain. This classification leads to a correction of nucleotide identity in one structure and reveals the ATP hydrolysis-dependent structural changes in the HsIVU complex, including a ring rotation and a conformational change of the HslU C terminus. This leads to an amended protein unfolding-coupled translocation mechanism. Conclusions: The observed nucleotide-dependent conformational changes in HslU and their governing principles provide a framework for the mechanistic understanding of other AAA(+) proteins. | - |
dc.language | English | - |
dc.publisher | Cell Press | - |
dc.subject | ESCHERICHIA-COLI | - |
dc.subject | CRYSTAL-STRUCTURE | - |
dc.subject | PROTEOLYTIC ACTIVITY | - |
dc.subject | ACTIVATED ATPASE | - |
dc.subject | 20S PROTEASOME | - |
dc.subject | COMPLEX | - |
dc.subject | HSLVU | - |
dc.subject | RESOLUTION | - |
dc.subject | HYDROLYSIS | - |
dc.subject | PROTEINS | - |
dc.title | Nucleotide-dependent conformational changes in a protease-associated ATPase HsIU | - |
dc.type | Article | - |
dc.identifier.wosid | 000172132300011 | - |
dc.identifier.scopusid | 2-s2.0-0035184442 | - |
dc.type.rims | ART | - |
dc.citation.volume | 9 | - |
dc.citation.issue | 11 | - |
dc.citation.beginningpage | 1107 | - |
dc.citation.endingpage | 1116 | - |
dc.citation.publicationname | STRUCTURE | - |
dc.identifier.doi | 10.1016/S0969-2126(01)00670-0 | - |
dc.contributor.localauthor | Song, Ji-Joon | - |
dc.contributor.nonIdAuthor | Wang, J | - |
dc.contributor.nonIdAuthor | Seong, IS | - |
dc.contributor.nonIdAuthor | Franklin, MC | - |
dc.contributor.nonIdAuthor | Kamtekar, S | - |
dc.contributor.nonIdAuthor | Eom, SH | - |
dc.contributor.nonIdAuthor | Chung, Chin Ha | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | hexameric ATPase | - |
dc.subject.keywordAuthor | HsIVU | - |
dc.subject.keywordAuthor | nucleotide-dependent motions | - |
dc.subject.keywordAuthor | translocation | - |
dc.subject.keywordAuthor | mechanism | - |
dc.subject.keywordPlus | ESCHERICHIA-COLI | - |
dc.subject.keywordPlus | CRYSTAL-STRUCTURE | - |
dc.subject.keywordPlus | PROTEOLYTIC ACTIVITY | - |
dc.subject.keywordPlus | ACTIVATED ATPASE | - |
dc.subject.keywordPlus | 20S PROTEASOME | - |
dc.subject.keywordPlus | COMPLEX | - |
dc.subject.keywordPlus | HSLVU | - |
dc.subject.keywordPlus | RESOLUTION | - |
dc.subject.keywordPlus | HYDROLYSIS | - |
dc.subject.keywordPlus | PROTEINS | - |
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