However, evidence of late-onset Alzheimer disease (LOAD)-associated genetic polymorphism within an exon of Mucin 6 (MUC6) and immediately downstream from the Adaptor Related Protein Complex 2 Subunit Alpha 2 (AP2A2) have been reported (Katsumata et al., 2020). The gene discussed is MUC6; the disease is late-onset Alzheimers disease.