Marseille and Houston types. Coomassie-stained SDS-PAGE of whole-cell lysates harvested from chocolate agar plates (grown at 35°C in 5% CO2). High-molecular-weight (lane 1 and left border) and low-molecular-weight (right border) markers are shown, with values in kilodaltons. Lanes: 2, BH5; 3, BH4; 4, URBHLLY-8 Marseille; 5, ATCC 49882 Houston-1; 6, HC35 (S4); 7, HC35 (S20).