KBTBD13 and the ever-expanding sarcomeric universe.
KBTBD13 and the ever-expanding sarcomeric universe.
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KBTBD13 和不断扩大的肌节宇宙。
DOI:
10.1172/jci132954
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
Campbell SG
中科院分区:
文献类型:
--
作者:
Campbell SG
KBTBD13 is a protein expressed in striated muscle whose precise function is unknown. Work by de Winter et al. in this issue of theJCIprovides evidence that KBTBD13 localizes to the sarcomere and can directly bind actin. A mutation in KBTBD13 that is associated with nemaline myopathy alters the protein’s effects on actin, apparently increasing thin-filament stiffness and ultimately depressing contractile force and relaxation rate. We discuss here the implications of this new sarcomeric protein, some alternate explanations for the effects of KBTBD13R408C, and the advantages of using computational models to interpret functional data from muscle.