Xu Wang

Graduate Student

Ph.D. candidate

Biochemistry and Cell Biology

Keck Hall, Room 327
BioSciences Department
6100 Main Street
Houston, TX 77005
Email: Xu.Wang@rice.edu
Ph: 713-348-2492
Daptomycin is a calcium dependent cyclic lipopeptide antibiotic used against multidrug-resistant, gram-positive pathogens. Daptomycin could insert into bacterial plasma membrane and aggregate to form channels, which leads to slow leakage of ions and loss of membrane potential. However, use of daptomycin represents a risk for the development of resistance. According to previous work in our lab, several
mutations have been identified in E. faecalis high daptomycin resistance strains, including a mutation in a DHH family protein. I will elucidate the structure and function of this DHH family protein and the role its mutant plays in daptomycin resistance.