Not only does MTP appear to be bound to Complex I, but it also appears to channel substrates between the two enzymes. This is especially interesting, because up until then it was unknown exactly how MTP was associated with the inner mitochondrial membrane, and this discovery may provide the explanation.
MTP's connection to Complex I, along with its ability to channel substrates between the two enzymes, is a significant discovery because it sheds light on how MTP is integrated into the inner mitochondrial membrane and how it contributes to cellular energy production.