MT1X (Metallothionein 1X): MT1X belongs to the metallothionein family, a group of proteins essential for maintaining metal ion balance and detoxification, as well as protecting cells from oxidative stress. Metallothioneins bind heavy metals to neutralize their toxicity and facilitate their metabolism and elimination. Like other metallothioneins, MT1X participates in the body's response to heavy metal exposure, oxidative stress, and inflammation, and is associated with various diseases, including cancer, due to its role in regulating cell growth and apoptosis.