Thermal unfolding and aggregation of actin
Thermal unfolding and aggregation of actin
复制标题
肌动蛋白的热解折叠和聚集
DOI:
--
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发表时间:
2008
期刊:
影响因子:
--
通讯作者:
O. Nikolaeva
中科院分区:
文献类型:
--
作者:
D. Levitsky;A. Pivovarova;V. Mikhailova;O. Nikolaeva
Actin is one of the most abundant proteins in nature. It is found in all eukaryotes and plays a fundamental role in many diverse and dynamic cellular processes. Also, actin is one of the most ubiquitous proteins because actin‐like proteins have recently been identified in bacteria. Actin filament (F‐actin) is a highly dynamic structure that can exist in different conformational states, and transitions between these states may be important in cytoskeletal dynamics and cell motility. These transitions can be modulated by various factors causing the stabilization or destabilization of actin filaments. In this review, we look at actin stabilization and destabilization as expressed by changes in the thermal stability of actin; specifically, we summarize and analyze the existing data on the thermal unfolding of actin as measured by differential scanning calorimetry. We also analyze in vitro data on the heat‐induced aggregation of actin, the process that normally accompanies actin thermal denaturation. In this respect, we focus on the effects of small heat shock proteins, which can prevent the aggregation of thermally denatured actin with no effect on actin thermal unfolding. As a result, we have proposed a mechanism describing the thermal denaturation and aggregation of F‐actin. This mechanism explains some of the special features of the thermal unfolding of actin filaments, including the effects of their stabilization and destabilization; it can also explain how small heat shock proteins protect the actin cytoskeleton from damage caused by the accumulation of large insoluble aggregates under heat shock conditions.
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影响因子:
5.6
作者:
De la Cruz, EM;Mandinova, A;Pollard, TD
通讯作者:
Pollard, TD
影响因子:
5.6
作者:
Bobkov, AA;Muhlrad, A;Reisler, E
通讯作者:
Reisler, E
影响因子:
2.9
作者:
Bertazzon,A;Tian,GH;Lamblin,A;Tsong,TY
通讯作者:
Tsong,TY
DOI:
--
发表时间:
1994
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Muhlrad,A;Cheung,P;Phan,BC;Miller,C;Reisler,E
通讯作者:
Reisler,E
影响因子:
11.2
作者:
Huot,J;Houle,F;Spitz,DR;Landry,J
通讯作者:
Landry,J