Article
A tightly regulated molecular toggle controls AAA+ disaggregase.
Nature structural & molecular biology - 1 Dec 2012
Oguchi Yuki, Kummer Eva, Seyffer Fabian, Berynskyy Mykhaylo, Anstett Benjamin, Zahn Regina, Wade Rebecca C, Mogk Axel, Bukau Bernd
Abstract excerpt
The ring-forming AAA+ protein ClpB cooperates with the DnaK chaperone system to refold aggregated proteins in Escherichia coli. The M domain, a ClpB-specific coiled-coil structure with two wings, motif 1 and motif 2, is essential to disaggregation, but the positioning and mechanistic role of M domains in ClpB hexamers remain unresolved. We show that M domains nestle at the ClpB ring surface, with both M-domain...
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