Moving Mitochondria: Establishing Distribution of an Essential Organelle
Moving Mitochondria: Establishing Distribution of an Essential Organelle
Mitochondria form a dynamic network responsible for energy production, calcium homeostasis and cell signaling. Appropriate distribution of the mitochondrial network contributes to organelle function and is essential for cell survival. Highly polarized cells, including neurons and budding yeast, are particularly sensitive to defects in mitochondrial movement and have emerged as model systems for studying mechanisms that regulate organelle distribution. Mitochondria in multicellular eukaryotes move along microtubule tracks. Actin, the primary cytoskeletal component used for transport in yeast, has more subtle functions in other organisms. Kinesin, dynein and myosin isoforms drive motor‐based movement along cytoskeletal tracks. Milton and syntabulin have recently been identified as potential organelle‐specific adaptor molecules for microtubule‐based motors. Miro, a conserved GTPase, may function with Milton to regulate transport. In yeast, Mmr1p and Ypt11p, a Rab GTPase, are implicated in myosin V‐based mitochondrial movement. These potential adaptors could regulate motor activity and therefore determine individual organelle movements. Anchoring of stationary mitochondria also contributes to organelle retention at specific sites in the cell. Together, movement and anchoring ultimately determine mitochondrial distribution throughout the cell.
- University of Utah United States
- Carnegie Institution for Science United States
Neurons, Organelles, Dyneins, Kinesins, Myosins, Models, Biological, Axons, GTP Phosphohydrolases, Mitochondria, Animals, Humans, Cytoskeleton, Signal Transduction
Neurons, Organelles, Dyneins, Kinesins, Myosins, Models, Biological, Axons, GTP Phosphohydrolases, Mitochondria, Animals, Humans, Cytoskeleton, Signal Transduction
4 Research products, page 1 of 1
- 2004IsAmongTopNSimilarDocuments
- 2008IsAmongTopNSimilarDocuments
- 2017IsRelatedTo
- 2017IsRelatedTo
citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).295 popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.Top 1% influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).Top 1% impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.Top 1%
