This domain is found in Mitochondrial dynamics protein MID51 from humans and similar proteins predominantly found in vertebrates. MID51 promotes the recruitment and association of the fission mediator dynamin-related protein 1 (DNM1L) to the mitochondrial surface to drive mitochondrial fission. This entry represents the C-terminal domain of this protein, which adopts a nucleotidyltransferase fold with a mixed alpha-beta topology configured into two lobes separated by a deep cleft [1-4].

1: Structural and functional analysis of MiD51, a dynamin receptor required for mitochondrial fission. Richter V, Palmer CS, Osellame LD, Singh AP, Elgass K, Stroud DA, Sesaki H, Kvansakul M, Ryan MT; J Cell Biol. 2014;204:477-486. PMID:24515348

2: The mitochondrial fission receptor MiD51 requires ADP as a cofactor. Loson OC, Liu R, Rome ME, Meng S, Kaiser JT, Shan SO, Chan DC; Structure. 2014;22:367-377. PMID:24508339

3: Crystal structure and functional analysis of MiD49, a receptor for the mitochondrial fission protein Drp1. Loson OC, Meng S, Ngo H, Liu R, Kaiser JT, Chan DC; Protein Sci. 2015;24:386-394. PMID:25581164

4: New interfaces on MiD51 for Drp1 recruitment and regulation. Ma J, Zhai Y, Chen M, Zhang K, Chen Q, Pang X, Sun F; PLoS One. 2019;14:e0211459. PMID:30703167