Ka/Ks profiles. Five GAPD isoenzymes are compared: GAPD-1 and GAPD-2 of mammals, GAPD-1 and GAPD-2 of teleosts and GAPD of insects. Numbering of the X axis starts immediately after the proline-rich domain of mammalian GAPD-2 and corresponds to the positions in protein sequences.
Kuravsky et al. BMC Evolutionary Biology 2011 11:160 doi:10.1186/1471-2148-11-160