ZMYND10 stabilizes intermediate chain proteins in the cytoplasmic pre-assembly of dynein arms.

Autor: Kyeong Jee Cho, Shin Hye Noh, Soo Min Han, Won-Il Choi, Hye-Youn Kim, Seyoung Yu, Joon Suk Lee, John Hoon Rim, Min Goo Lee, Friedhelm Hildebrandt, Heon Yung Gee
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: PLoS Genetics, Vol 14, Iss 3, p e1007316 (2018)
Druh dokumentu: article
ISSN: 1553-7390
1553-7404
DOI: 10.1371/journal.pgen.1007316
Popis: Zinc finger MYND-type-containing 10 (ZMYND10), a cytoplasmic protein expressed in ciliated cells, causes primary ciliary dyskinesia (PCD) when mutated; however, its function is poorly understood. Therefore, in this study, we examined the roles of ZMYND10 using Zmynd10-/-mice exhibiting typical PCD phenotypes, including hydrocephalus and laterality defects. In these mutants, morphology, the number of motile cilia, and the 9+2 axoneme structure were normal; however, inner and outer dynein arms (IDA and ODA, respectively) were absent. ZMYND10 interacted with ODA components and proteins, including LRRC6, DYX1C1, and C21ORF59, implicated in the cytoplasmic pre-assembly of DAs, whose levels were significantly reduced in Zmynd10-/-mice. LRRC6 and DNAI1 were more stable when co-expressed with ZYMND10 than when expressed alone. DNAI2, which did not interact with ZMYND10, was not stabilized by co-expression with ZMYND10 alone, but was stabilized by co-expression with DNAI1 and ZMYND10, suggesting that ZMYND10 stabilized DNAI1, which subsequently stabilized DNAI2. Together, these results demonstrated that ZMYND10 regulated the early stage of DA cytoplasmic pre-assembly by stabilizing DNAI1.
Databáze: Directory of Open Access Journals
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