... using Lasergene DNASTAR MEGALIGN software The lamprey NPY receptor sequence serves as a master with human Y1 , Y2 and Y4 , mouse y6 , and zebrafish Ya, Yb and Yc sequences Boxes mark putative transmembrane ... and Xenopus, the Y4 gene from human, rat, mouse, guinea Lamprey neuropeptide Y receptor (Eur J Biochem 268) 6147 pig and the y6 gene from mouse and rabbit as well as the zebrafish Ya, Yb and Yc ... Phylogenetic analyses of the Y1 subfamily amino-acid sequences (A) Tree A is a maximum parsimony bootstrap consensus tree placing the lamprey sequence basal to all Y4 , Ya, Yb and Yc sequences (PAUP...