MNE1 is a novel component of the mitochondrial splicing apparatus responsible for the processing of a COX1 group I intron in yeast [1]. Yeast cells lacking MNE1 are deficient in intron splicing in the gene encoding the Cox1 subunit of cytochrome oxidase but do contain wild-type levels of the bc1 complex.

1: Mne1 is a novel component of the mitochondrial splicing apparatus responsible for processing of a COX1 group I intron in yeast. Watts T, Khalimonchuk O, Wolf RZ, Turk EM, Mohr G, Winge DR; J Biol Chem. 2011; [Epub ahead of print] PMID:21257754