Title:UDP-glucuronosyltransferases: Structure, Function and Drug Design Studies
Volume: 25
Issue: 27
关键词:
UDP-葡萄糖醛糖基转移酶,葡萄糖醛酸氧化,药物-药物相互作用,生物信息工具,药物设计。
摘要: UDP-glucuronosyltransferases (UGTs) are important phase II metabolic enzymes
responsible for approximately 40-70% of endo and xenobiotic reactions. It catalyzes the transfer
of glucuronic acid to lipophilic substrates, converting them into hydrophilic compounds
that are excreted. There are 22 active human UGTs that belong to 4 families. This review focuses
on human UGTs, highlighting the most current issues in order to connect all information
available and allowing a discussion on the challenges already solved and those in which
we need to move forward. Although, several UGTs studies have been conducted, the most
recent ones addressing drug-drug interactions and polymorphism issues, there are still bottlenecks
to overcome. Tridimensional structure is difficult to obtain due to overexpression, purification,
and crystallization problems as well as the action mechanism - since overlapping of
substrate specificities renders impasses on the identification of which isoform is responsible
for a particular drug metabolic pathway. For this reason, bioinformatic tools are gaining more
space, since it is a faster and less expensive reliable methodology that complements in vitro
and in vivo researches. Combinations of quantum and molecular methods have become increasingly
common, leading to the incorporation of enzyme features comprising their structure,
dynamics and chemical reactions. Breakthroughs related to the enzyme, not only enable
the discovery of new drugs essential for the treatment of various diseases, but also provide an
improved action of the existing drugs.