Multivalent protein-protein interactions are pivotal regulators of eukaryotic Hsp70 complexes.
Multivalent protein-protein interactions are pivotal regulators of eukaryotic Hsp70 complexes.
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多价蛋白质-蛋白质相互作用是真核Hsp 70复合物的关键调节因子。
DOI:
10.1007/s12192-022-01281-1
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发表时间:
2022-07
影响因子:
3.8
通讯作者:
Gestwicki, Jason E.
中科院分区:
文献类型:
--
作者:
Johnson, Oleta T.;Gestwicki, Jason E.
Heat shock protein 70 (Hsp70) is a molecular chaperone and central regulator of protein homeostasis (proteostasis). Paramount to this role is Hsp70’s binding to client proteins and co-chaperones to produce distinct complexes, such that understanding the protein–protein interactions (PPIs) of Hsp70 is foundational to describing its function and dysfunction in disease. Mounting evidence suggests that these PPIs include both “canonical” interactions, which are universally conserved, and “non-canonical” (or “secondary”) contacts that seem to have emerged in eukaryotes. These two categories of interactions involve discrete binding surfaces, such that some clients and co-chaperones engage Hsp70 with at least two points of contact. While the contributions of canonical interactions to chaperone function are becoming increasingly clear, it can be challenging to deconvolute the roles of secondary interactions. Here, we review what is known about non-canonical contacts and highlight examples where their contributions have been parsed, giving rise to a model in which Hsp70’s secondary contacts are not simply sites of additional avidity but are necessary and sufficient to impart unique functions. From this perspective, we propose that further exploration of non-canonical contacts will generate important insights into the evolution of Hsp70 systems and inspire new approaches for developing small molecules that tune Hsp70-mediated proteostasis.
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DOI:
10.1016/j.jbc.2021.101282
发表时间:
2021-11
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Arhar T;Shkedi A;Nadel CM;Gestwicki JE
通讯作者:
Gestwicki JE
影响因子:
3.4
作者:
Zhang B;Rong R;Li H;Peng X;Xiong L;Wang Y;Yu X;Mao H
通讯作者:
Mao H
影响因子:
10.5
作者:
Campbell, KS;Mullane, KP;DeCaprio, JA
通讯作者:
DeCaprio, JA
DOI:
10.1073/pnas.0903503106
发表时间:
2009-05-26
影响因子:
11.1
作者:
Bertelsen, Eric B.;Chang, Lyra;Zuiderweg, Erik R. P.
通讯作者:
Zuiderweg, Erik R. P.
影响因子:
4.8
作者:
Abrams, Jennifer L.;Verghese, Jacob;Morano, Kevin A.
通讯作者:
Morano, Kevin A.