Phosphoethanolamine Transferase LptA in Haemophilus ducreyi Modifies Lipid A and Contributes to Human Defensin Resistance In Vitro
Fig 4
H. ducreyi putative PEA transferases contribute to modification of lipid A with PEA.
Negative-ion MALDI-MS spectra of O-LOS from (A) 35000HP/pLSSK, (B) 35000HPΔPEAT/pLSSK, and (C) 35000HPΔPEAT/pPEAT. The compositions of the glycoforms are described in Table 5. Masses labeled in bold were only observed in the parent strain and the corresponding PEAT complemented strain. The asterisk in the glycoform nomenclature designates the number of PEA groups present on the O-LOS.