MT1X (Metallothionein 1X): MT1X is a member of the metallothionein family, proteins that play key roles in metal ion balance and detoxification, as well as protecting cells from oxidative stress. Metallothioneins bind heavy metals, helping to neutralize their toxicity and support their metabolism and elimination. MT1X, like other metallothioneins, is involved in responses to heavy metal exposure, oxidative stress, and inflammation, and is linked to various diseases, including cancer, due to its influence on cell growth and programmed cell death.