UGT1A8

UGT1A8 is an enzyme that in humans is encoded by the UGT1A8 gene. It is part of the UDP-glucuronosyltransferase (UGT) family, which plays a crucial role in the metabolism of both endogenous and exogenous compounds.

Function

UGT1A8, like other members of the UGT family, catalyzes the transfer of glucuronic acid from uridine diphosphate glucuronic acid (UDP-Glucuronic acid) to a wide array of substrates, including bile acids, steroids, and drugs. This process, known as glucuronidation, is a major pathway for the body to eliminate potentially harmful compounds, including drugs and other xenobiotics.

Clinical significance

Alterations in the function of UGT1A8 can have significant clinical implications. For example, mutations in the UGT1A8 gene can lead to Gilbert's syndrome, a benign condition characterized by mild, intermittent jaundice due to decreased glucuronidation of bilirubin.

In addition, the activity of UGT1A8 can be influenced by various factors, including age, sex, and the presence of certain diseases. For instance, the activity of UGT1A8 is known to be reduced in patients with liver disease, potentially leading to altered drug metabolism and increased risk of drug toxicity.

See also

• UDP-glucuronosyltransferase
• Glucuronidation
• Gilbert's syndrome