Abstract
Mitochondrial fusion plays an important role in both their structure and function. In this issue, Su et al. (2023. J. Cell Biol.https://doi.org/10.1083/jcb.202301091) report that a nucleoside diphosphate kinase, NME3, facilitates mitochondrial tethering prior to fusion through its direct membrane-binding and hexamerization but not its kinase activity.
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