Figure 2From: Molecular cloning and functional characterization of an ATP-binding cassette transporter OtrC from Streptomyces rimosusAlignment of the amino acid sequence of predicted conserved motifs of the transmembrane subunit, OtrC-ORF2, MsbA, DrrB, BtuC and MalG. The dark gray regions show residues that are highly conserved, whereas the residues in light gray are less well conserved. The first amino acid in the sequence of each protein is shown.Back to article page