Currently, common obesity genes include ADRB2, ADRB3, UCP1, PPAR?, GNB3, Sema3, and so on. Qexp-MDx Obesity Genotyping Kit is based on ADRB2, ADRB3, and UCP1 to analyze the risk of obesity.
Beta-2 adrenergic receptor, ADRB2
ADRB2 is a cell membrane-spanning beta-adrenergic receptor. It will couple with catecholamines to activate a series of downstream reactions that promote the decomposition of fat and carbohydrates. ADRB2 has a Guanine (G) mutation from Cytosine (C) at position 79 leading to a decreased efficiency of fat and carbohydrate metabolism and an increased risk of systemic obesity.
Beta-3 adrenergic receptor, ADRB3
The function of ADRB3 is co-related to the ADRB2. The difference is that ADRB3 is involved in intercellular signaling and is responsible for lipolysis and thermogenesis. ADRB3 has a Cytosine (C) mutation from Thymine (T) at position 190. It will lead to easy accumulation of fat and increase the risk of upper-body fat.
Thermogenin, UCP1
UCP1 is a mitochondrial carrier protein found in brown adipose tissue (BAT). UCP1 plays an important role in energy balance by consuming energy from food metabolism to generate heat. UCP1 has a Guanine (G) mutation from Adenine (A) at position 190. It leads to poorer thermogenesis effect and accumulate fat in the thighs and buttocks, resulting in lower-body obesity.