These results suggest that impact trauma-induced chondrocyte death is predominantly due to caspase-9-dependent apoptosis and is linked to cartilage degeneration.

No abstract

Bordetella pertussis lipopolysaccharide (LPS) contains a single 2-keto-3-deoxy-d-manno-octulosonic acid (Kdo) residue, whereas LPS from Escherichia colicontains at least two. Here we report that B. pertussis waaA encodes an enzyme capable of transferring only a single Kdo during the biosynthesis of LPS and that this activity is sufficient to complement an E. coli waaA mutation.