LTN1 and Alzheimer disease: subsequently identified a T>C mutation at chr21:28 939 464 in the Listerin gene in AD patients.[16] Another tandem mass tag (TMT)‐mass spectrometry (MS) based quantitative proteomics study analyzed 516 dorsolateral prefrontal cortex (DLPFC) tissues from healthy and AD brains.[17] The data showed decreased expression of Listerin in the brain tissues of AD patients.