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Phospholipase C delta 1, also known by its gene name PLCD1, has a 756 amino acid long isoform that is approximately 86 kDa and a 777 amino acid long isoform that is approximately 88 kDa. Phospholipase C delta 1 is a member of the phospholipase C family and plays a critical role in the production of intercellular second messenger molecules. Phospholipase C delta 1 is a tumor suppressor and mutations in PLCD1 may be a cause of hereditary leukonychia. Currently research on Phospholipase C delta 1 is related to several diseases and disorders including nail disorders, squamous cell carcinoma, Huntington's disease, Alzheimer's disease, colon carcinoma, breast cancer, esophagitis and hypertension. Phospholipase C delta 1 has also been shown to interact with CALM1, CALM2, CALM3, TGM2 and KPNB1 in pathways such as IGF1R signaling, PKA signaling, sweet taste signaling and CREB Pathway.
