FIG. 1.
LOS profiles of the arcA mutants and the wild type on 14% PAGE gels. Lane 1, Hib− strain (unencapsulated); lane 2, strain Hib1 (arcA::kan); lane 3, strain Hib2 (arcA::tet); lane 4, wild-type strain Hib; lane 5, Hib3 (arcA-gfp-tet); lane 6, strain Hib2 after exposure to serum; lane 7, wild-type strain Hib after exposure to serum.