... 2004 FEBS Molecular characterization, phylogenetic relationships, and developmental expression patterns of prion genes in zebrafish (Danio rerio) Emmanuelle Cotto1,2, Miche`le Andre´1, ... mammalian origin by the fish intestine.Comparison of zebrafish prp1, prp2, and prp3 developmental expression patterns The developmental expression patterns of prp1 and prp2 coding for long zebrafish ... mis-folded form of a prion protein (PrP) encoded by the Prnp gene in humans. In the present study in zebrafish, two transcripts and the corresponding genes encoding prion proteins, PrP1 and PrP2, related...