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Related Experiment Video

Updated: Jun 17, 2026

Isolation and Functional Analysis of Mitochondria from Cultured Cells and Mouse Tissue

Isolation and Functional Analysis of Mitochondria from Cultured Cells and Mouse Tissue

Published on: March 23, 2015

Motors: unleashing mitochondria.

Margaret A Titus¹

¹Department of Genetics, Cell Biology and Genetics, University of Minnesota, Minneapolis, MN 55455, USA. titus004@umn.edu

Current Biology : CB

|January 13, 2010

Summary

A novel unconventional myosin, Myo19, has been identified as a mitochondria-associated motor protein. This discovery may explain how mitochondria interact with and move along actin filaments in metazoans.

Area of Science:

Cell Biology
Molecular Biology
Biochemistry

Background:

Mitochondria are dynamic organelles involved in cellular energy production and signaling.
Mitochondrial movement and positioning are crucial for cellular function.
The molecular mechanisms by which mitochondria interact with the actin cytoskeleton in metazoans remain largely unknown.

Purpose of the Study:

To identify the protein(s) responsible for mediating mitochondrial interactions with actin in metazoans.
To elucidate the role of novel motor proteins in mitochondrial dynamics.

Main Methods:

Proteomic analysis of mitochondria-associated proteins.
Expression and localization studies of candidate proteins.
Functional assays to assess the role of identified proteins in mitochondrial movement.

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Published on: May 4, 2013

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Isolation and Functional Analysis of Mitochondria from Cultured Cells and Mouse Tissue

Isolation and Functional Analysis of Mitochondria from Cultured Cells and Mouse Tissue

Published on: March 23, 2015

F1FO ATPase Vesicle Preparation and Technique for Performing Patch Clamp Recordings of Submitochondrial Vesicle Membranes

F₁F_O ATPase Vesicle Preparation and Technique for Performing Patch Clamp Recordings of Submitochondrial Vesicle Membranes

Published on: May 4, 2013

Main Results:

Identification of a novel unconventional myosin, designated Myo19, as a mitochondria-associated protein.
Myo19 localizes to mitochondria and exhibits motor protein characteristics.
Evidence suggests Myo19 plays a role in either the transport or tethering of mitochondria to actin.

Conclusions:

Myo19 is a novel mitochondria-associated motor protein in metazoans.
Myo19 likely mediates the interaction between mitochondria and the actin cytoskeleton.
Further research is needed to fully define Myo19's role in mitochondrial trafficking and tethering.