Mechanical instability generated by Myosin 19 contributes to mitochondria cristae architecture and OXPHOS.
Mechanical instability generated by Myosin 19 contributes to mitochondria cristae architecture and OXPHOS.
复制标题
肌球蛋白 19 产生的机械不稳定性有助于线粒体嵴结构和 OXPHOS
DOI:
10.1038/s41467-022-30431-3
复制
发表时间:
2022-05-13
影响因子:
16.6
通讯作者:
中科院分区:
文献类型:
--
作者:
The folded mitochondria inner membrane-cristae is the structural foundation for oxidative phosphorylation (OXPHOS) and energy production. By mechanically simulating mitochondria morphogenesis, we speculate that efficient sculpting of the cristae is organelle non-autonomous. It has long been inferred that folding requires buckling in living systems. However, the tethering force for cristae formation and regulation has not been identified. Combining electron tomography, proteomics strategies, super resolution live cell imaging and mathematical modeling, we reveal that the mitochondria localized actin motor-myosin 19 (Myo19) is critical for maintaining cristae structure, by associating with the SAM-MICOS super complex. We discover that depletion of Myo19 or disruption of its motor activity leads to altered mitochondria membrane potential and decreased OXPHOS. We propose that Myo19 may act as a mechanical tether for effective ridging of the mitochondria cristae, thus sustaining the energy homeostasis essential for various cellular functions.
登录
查看更多内容
影响因子:
2.9
作者:
Adikes, Rebecca C.;Unrath, William C.;Yengo, Christopher M.;Quintero, Omar A.
通讯作者:
Quintero, Omar A.
影响因子:
--
作者:
Choi YJ;Jung SH;Kim MS;Baek IP;Rhee JK;Lee SH;Hur SY;Kim TM;Chung YJ;Lee SH
通讯作者:
Lee SH
影响因子:
1.8
作者:
Kohutek ZA;Rosati LM;Hong J;Poling J;Attiyeh MA;Makohon-Moore A;Herman JM;Iacobuzio-Donahue CA
通讯作者:
Iacobuzio-Donahue CA
DOI:
10.1007/978-3-030-38062-5_20
发表时间:
2020-01-01
期刊:
MYOSINS: A SUPERFAMILY OF MOLECULAR MOTORS, 2ND EDITION
影响因子:
--
作者:
Bocanegra, Jennifer L.;Adikes, Rebecca;Quintero, Omar A.
通讯作者:
Quintero, Omar A.
影响因子:
64.5
作者:
Jiao, Haifeng;Jiang, Dong;Hu, Xiaoyu
通讯作者:
Hu, Xiaoyu