MIRO domain (IPR020860)

Short name: MIRO_dom

Overlapping homologous superfamilies

Domain relationships



Mitochondrial Rho (Miro) proteins are aberrant members of the small GTPase superfamily found in most eukaryotes. Miro contains a transmembrane region located at the C terminus anchors the protein to the outer membrane of mitochondria, the GTPase domains and EF-hands located in the cytoplasm. Miro and its cytoplasmic binding partner Milton/TRAK link mitochondria to kinesin and dynein molecular motors in various cell types [PMID: 27064409]. Mammals have two Miro orthologs , Miro1 and Miro2. They mediate mitochondrial trafficking in neurons by linking mitochondria to kinesin and dynein motor proteins for their transport in axons and dendrites [PMID: 24711517, PMID: 27386195]. Yeasts have one Miro homologue, known as Gem1, which is part of the ERMES complex that links the ER to mitochondria [PMID: 21825164]. Interestingly, ERMES is absent in metazoa [PMID: 28122638].

This entry represents the tandemly repeated GTPase domain from these proteins.

GO terms

Biological Process

No terms assigned in this category.

Molecular Function

GO:0005525 GTP binding
GO:0003924 GTPase activity

Cellular Component

No terms assigned in this category.

Contributing signatures

Signatures from InterPro member databases are used to construct an entry.
PROSITE profiles