The advance of functional genomics revealed the superfamily of G-protein coupled receptors (GPCRs). Hundreds of GPCRs have been cloned but many of them are orphan GPCRs with unidentified ligands. The first identified orphan GPCR is the opioid receptor like orphan receptor, ORL1. It was cloned in
Bordetella pertussis, the agent of whooping cough, is capable of invading human respiratory epithelial cells. In this study, we investigated the mechanisms by which B. pertussis invades the human lung epithelial cell line A549 and normal human bronchial epithelial (NHBE) cells. In vitro adhesion and
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