Mitochondrial nucleoid interacting proteins support mitochondrial protein synthesis.

He J, Helen Cooper, A Reyes, Di Re M, H Sembongi, TR Litwin, J Gao, KC Neuman, IM Fearnley, A Spinazzola, JE Walker, IJ Holt

Tutkimustuotos: LehtiartikkeliArtikkeliTieteellinenvertaisarvioitu

123 Sitaatiot (Scopus)

Abstrakti

Mitochondrial ribosomes and translation factors co-purify with mitochondrial nucleoids of human cells, based on affinity protein purification of tagged mitochondrial DNA binding proteins. Among the most frequently identified proteins were ATAD3 and prohibitin, which have been identified previously as nucleoid components, using a variety of methods. Both proteins are demonstrated to be required for mitochondrial protein synthesis in human cultured cells, and the major binding partner of ATAD3 is the mitochondrial ribosome. Altered ATAD3 expression also perturbs mtDNA maintenance and replication. These findings suggest an intimate association between nucleoids and the machinery of protein synthesis in mitochondria. ATAD3 and prohibitin are tightly associated with the mitochondrial membranes and so we propose that they support nucleic acid complexes at the inner membrane of the mitochondrion.

AlkuperäiskieliEi tiedossa
Sivut6109–6121
JulkaisuNucleic Acids Research
Vuosikerta40
Numero13
DOI - pysyväislinkit
TilaJulkaistu - 2012
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

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