Figure 2.
Molecular analysis of difF. (A) Diagram showing the structure of difF. Exons are depicted as thick bars. The triangles indicate the positions of dTph1 insertions in the alleles difF-V2082 and difF-W2090. (B) Phylogenetic tree showing the homology of the DIF-F protein to a variety of Cyt b5 proteins. (C) Alignment of the DIF-F protein with Cyt b5s from mammals, plants, and yeast. Amino acids conserved in more than half of the sequences are indicated by black shading.
