Mitofusin-1 (MFN1)

Mitochondrial outer membrane GTPase that mediates mitochondrial clustering and fusion (PubMed:12475957, PubMed:12759376, PubMed:27920125, PubMed:28114303). Membrane clustering requires GTPase activity (PubMed:27920125).

It may involve a significant rearrangement of the coiled coil domains (PubMed:27920125, PubMed:28114303). Mitochondria are exceptionally dynamic organelles, and their morphology is determined by the equilibrium between mitochondrial fusion and fission events (PubMed:12475957, PubMed:12759376).