Structure determination of LpxD from the lipopolysaccharide-synthesis pathway of Acinetobacter baumannii.

John Badger, Barbara Chie-Leon, Cheyenne Logan, Vandana Sridhar, Banumathi Sankaran, Peter H Zwart, Vicki Nienaber

Acta crystallographica. Section F, Structural biology and crystallization communications 2013 Jan 01

filter terms:

Acinetobacter baumannii is a Gram-negative bacterium that is resistant to many currently available antibiotics. The protein LpxD is a component of the biosynthetic pathway for lipopolysaccharides in the outer membrane of this bacterium and is a potential target for new antibacterial agents. This paper describes the structure determination of apo forms of LpxD in space groups P2(1) and P4(3)22. These crystals contained six and three copies of the protein molecule in the asymmetric unit and diffracted to 2.8 and 2.7 Å resolution, respectively. A comparison of the multiple protein copies in the asymmetric units of these crystals reveals a common protein conformation and a conformation in which the relative orientation between the two major domains in the protein is altered.

Citation

John Badger, Barbara Chie-Leon, Cheyenne Logan, Vandana Sridhar, Banumathi Sankaran, Peter H Zwart, Vicki Nienaber. Structure determination of LpxD from the lipopolysaccharide-synthesis pathway of Acinetobacter baumannii. Acta crystallographica. Section F, Structural biology and crystallization communications. 2013 Jan 01;69(Pt 1):6-9