Moreover, there is very limited information on the phosphorylation status of TDP‐43 in cellular or animal models, such as iPSC‐derived neurons or mouse models of TDP‐43 proteinopathy—typically only the presence of S409/S410 is probed, while comprehensive information on TDP‐43 phospho‐sites (number, location, stoichiometry) is largely missing. This evidence concerns the gene TARDBP and proteostasis deficiencies.