Figure 2.

Absolute transcript abundance of the cDNAs encoding the protein import machinery. Quantitative real-time RT-PCR analysis of Arabidopsis cell culture was used to measure the absolute transcript abundance for cDNAs encoding the Arabidopsis mitochondrial protein import machinery. Multiple gene families are encompassed by a rectangle. An arrow indicates the isoform with the highest transcript abundance in each gene family. A white circle indicates the protein isoform found by mass spectrometry.