by contrast , assay of bird , reptile , teleost , and elasmobranch hypothalamic extracts with antiserum 422 gave much higher values than did the other antisera , suggesting that the lhrh peptide is structurally different from mammalian and amphibian lhrh in the region of leu7 but similar at the nh2- and co2h-termini .
C0020663
hypothalamic
C0023610
lhrh