Direct redox regulation of F-actin assembly and disassembly by Mical.
Direct redox regulation of F-actin assembly and disassembly by Mical.
复制标题
DOI:
10.1126/science.1211956
复制
发表时间:
2011-12-23
期刊:
影响因子:
--
通讯作者:
Terman JR
中科院分区:
文献类型:
--
作者:
Hung RJ;Pak CW;Terman JR
Different types of cell behavior including growth, motility, and navigation require actin proteins to assemble into filaments. Here, we describe a biochemical process that was able to disassemble actin filaments and limit their reassembly. Actin was a specific substrate of the multi-domain oxidation-reduction (Redox) enzyme, Mical, a poorly-understood actin disassembly factor that directly responds to Semaphorin/Plexin extracellular repulsive cues. Actin filament subunits were directly modified by Mical on their conserved pointed-end that is critical for filament assembly. Mical post-translationally oxidized the methionine 44 residue within the D-loop of actin, simultaneously severing filaments and decreasing polymerization. This mechanism underlying actin cytoskeletal collapse may have broad physiological and pathological ramifications.
登录
查看更多内容
影响因子:
64.8
作者:
通讯作者:
--
影响因子:
64.8
作者:
Fujii, Takashi;Iwane, Atsuko H.;Namba, Keiichi
通讯作者:
Namba, Keiichi
影响因子:
5.7
作者:
Takamoto, Keiji;Kamal, J. K. Amisha;Chance, Mark R.
通讯作者:
Chance, Mark R.
影响因子:
64.8
作者:
Oda, Toshiro;Iwasa, Mitsusada;Narita, Akihiro
通讯作者:
Narita, Akihiro
影响因子:
16.8
作者:
通讯作者:
--