ATXN3 and Spinocerebellar ataxia type 3: Of the 68 mitophagy-related proteins in the KEGG database, for 36 there is no evidence that they could be ataxin-3 interactors, but since the experimental approaches used to obtain PPIs do not take in account transient dynamics, post-translational modifications, proteins with disordered regions, or physiological conditions [98], and since these proteins are expressed in tissues that are important in SCA3/MJD (protocol 2), they could be ataxin-3 interactors that are yet to be described.