Β-LGND2

Β-LGND2‏‎ is a protein that in humans is encoded by the LGND2 gene. It is also known as Liver-expressed antimicrobial peptide 2 (LEAP2). This protein is a part of the antimicrobial peptide family, which are small proteins involved in the innate immune response.

Function

Β-LGND2‏‎ is a secreted protein that is primarily expressed in the liver. It has been found to have antimicrobial activity against a variety of bacteria, including Gram-negative and Gram-positive species. The protein is thought to function by disrupting the bacterial cell membrane, leading to cell death.

In addition to its antimicrobial activity, Β-LGND2‏‎ has been found to play a role in the regulation of energy homeostasis. It acts as a natural antagonist for the ghrelin receptor, a G-protein coupled receptor that is involved in the regulation of appetite and energy balance.

Clinical significance

Alterations in the expression of Β-LGND2‏‎ have been associated with a variety of diseases. For example, increased expression of the protein has been observed in patients with liver disease, suggesting that it may play a role in the body's response to liver injury.

In addition, alterations in the function of the ghrelin receptor due to changes in the levels of Β-LGND2‏‎ have been implicated in the development of obesity and metabolic syndrome.

See also

• Antimicrobial peptides
• Ghrelin receptor
• Liver disease
• Obesity
• Metabolic syndrome