Table 1: Comparison of kisspeptin, kissorphin, and NPFF sequences.

Kisspeptin-13LeuProAsnTyrAsnTrpAsnSerPheGlyLeuArgPheNH2
Kisspeptin-10TyrAsnTrpAsnSerPheGlyLeuArgPheNH2
KissorphinTyrAsnTrpAsnSerPheNH2
Neuropeptide FFPheLeuPheGlnProGlnArgPheNH2
* * *

*Ring structure aminoacid; uncharged polar aminoacid.