Ontology highlight
ABSTRACT:
SUBMITTER: Burkhard KA
PROVIDER: S-EPMC3832205 | biostudies-literature | 2008 Aug
REPOSITORIES: biostudies-literature
Burkhard Kimberly A KA Wilks Angela A
Biochemistry 20080711 31
The heme ATP binding cassette (ABC) transporter, ShuUV, of Shigella dysenteriae has been incorporated into proteoliposomes. Functional characterization of ShuUV revealed that ATP hydrolysis and transport of heme from the periplasmic binding protein, ShuT, to the cytoplasmic binding protein, ShuS, are coupled. Site-directed mutagenesis of ShuT residues proposed to be required for stabilization of the complex abolished heme transport. Furthermore, residues His-252 and His-262, located in the trans ...[more]