Whole cell proteins from haloarchaeal cells grown in NG or SMG, following separation by SDS polyacrylamide gel electrophoresis. (A1, A2) One-dimensional gels. Molecular mass markers are indicated to the right from top to bottom (in kDa) as follows: 200, 100, 50, 30, 25, 15, 10. Red arrows point to regions with significant protein differences between growth in NG (A1, A2, left lanes) or SMG (A1, A2, right lanes), respectively. (A1) Hfx. mediterranei DSM 1411T. (A2) Hcc. dombrowskii DSM 14522T. (B1, B2) Partial proteomes of Hcc. dombrowskii DSM 14522T grown in NG (B1) or SMG (B2), separated by two-dimensional gel electrophoresis. Isoelectric points (pI from 3 to 5) and molecular mass standards (30, 25, 15 kDa) are indicated. Several spots with identical locations in both gels are depicted by black arrows; significant differences between the two proteomes with respect to number and intensity of spots are highlighted with red boxes.