Figure 1.

CAH4/5 protein levels are strongly affected by CO₂ levels. The left panel is an immunoblot probed with anti-CAH4 antibodies showing the CAH4/5 levels in D66 grown on minimal media in light at high CO₂ or ambient CO₂. Cells were grown in MIN media for 72 h in high CO₂ conditions before incubating them under the respective CO₂ conditions. The right panel is an SDS–PAGE gel of the same samples stained with Coomassie Blue.