Figure 4. The MTS of Arg2 is located on N-terminus and includes amino acids 1-22 or 1-40.
HAEC were transfected with Full length Arg2, or either the 1-22 or the 1-40 N terminal deletion mutants, and analysis of A) western blotting, B) subcellular fractionation of full length and 1-22 truncated Arg2, and C) immunofluorescence using anti-FLAG antibody (green) and mitotracker red are shown. Full length Arg2 was localized almost exclusively to mitochondria and both truncated mutants were predominantly cytosolic (DAPI-labeled nuclei (blue) are shown in the merged images). Scale bar denotes ~40 microns.