Fig. S1
Related to Figure 1 and 2: bace2-/- mutants have increased mRNA expression of pigmentation genes.
(A) Schematic representation of zebrafish WT and Bace2-/- protein as found in the wanderlust mutant. Zebrafish Bace2 is a type I integral membrane β secretase that contains two DTG and DSG protease sites within its extracellular/lumenal domain. The wanderlust mutant (Bace2-/-) has a C to A nonsense mutation leading to a truncated protein with size of 56 amino acids (aa), lacking both protease sites. TM=Transmembrane domain. (B-C) ISH shows no detectable difference in neural crest or melanophore genes expression between WT and bace2-/- fish at 24 hpf (B), but ISH shows pigmentation genes are elevated in bace2-/- fish at 72 hpf (C). Scale bars, 200μM.
Reprinted from Developmental Cell, 45(5), Zhang, Y.M., Zimmer, M.A., Guardia, T., Callahan, S.J., Mondal, C., Di Martino, J., Takagi, T., Fennell, M., Garippa, R., Campbell, N.R., Bravo-Cordero, J.J., White, R.M., Distant Insulin Signaling Regulates Vertebrate Pigmentation through the Sheddase Bace2, 580-594.e7, Copyright (2018) with permission from Elsevier. Full text @ Dev. Cell