Choline Animals 6 Female 6 Mice 6 article 6 controlled study 6 nonhuman 6 ATP-Binding Cassette Transporters 4 Amino Acid Sequence 4 Bacterial Proteins 4 Biological Transport, Active 4 Brucella abortus 4 Cell Membrane 4 ChoX protein 4 Gene Expression Regulation, Bacterial 4 Macrophages 4 Mice, Inbred BALB C 4 Molecular Sequence Data 4 Open Reading Frames 4 Phosphatidylcholines 4 binding affinity 4 binding assay 4 cell migration 4 cell vacuole 4 choline 4 choline uptake 4 fluorescence 4 gene disruption 4 isotope labeling 4 mutant 4