Fig. 1. Sequence alignment of putative vertebrate Prdm1/Blimp1 proteins to zebrafish Prdm1 (D. rerio, in red). Identical sequences are boxed in dark gray, sequences with similar properties in light gray. The regions harboring a putative Groucho binding site (orange) (Ren et al., 1999), and five zinc-fingers (green) are highlighted.