PIK3CD and COVID-19: Other genes that have been annotated in public database KEGG for their role in the COVID-19 pathway include NLRP3 (NLR family pyrin domain containing 3), MAPK10 (mitogen-activated protein kinase 10), and PIK3CD (phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit delta).