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Table 1 Neurohypophysial hormones in vertebrates

From: Sequence and organization of coelacanth neurohypophysial hormone genes: Evolutionary history of the vertebrate neurohypophysial hormone gene locus

Vasopressin homologs
Vasopressin Cys-Tyr-Phe-Gln-Asn-Cys-Pro-Arg-Gly (NH2) Mammals
[Lys8]vasopressin Cys-Tyr-Phe-Gln-Asn-Cys-Pro-Lys-Gly (NH2) Pigs and some marsupials
[Phe2]vasopressin Cys-Phe-Phe-Gln-Asn-Cys-Pro-Arg-Gly (NH2) Some marsupials
Vasotocin Cys-Tyr-Ile-Gln-Asn-Cys-Pro-Arg-Gly (NH2) Non-mammals
Oxytocin homologs
Oxytocin Cys-Tyr-Ile-Gln-Asn-Cys-Pro-Leu-Gly (NH2) Mammals, some marsupials, platypus, ratfish (H. colliei)
Mesotocin Cys-Tyr-Ile-Gln-Asn-Cys-Pro-Ile-Gly (NH2) Some marsupials, non-eutherian tetrapods, some lungfishes
[Phe2]mesotocin Cys-Phe-Ile-Gln-Asn-Cys-Pro-Ile-Gly (NH2) Australian lungfish
Isotocin Cys-Tyr-Ile-Ser-Asn-Cys-Pro-Ile-Gly (NH2) Ray-finned fishes
Glumitocin Cys-Tyr-Ile-Ser-Asn-Cys-Pro-Gln-Gly (NH2) Skates
Valitocin Cys-Tyr-Ile-Gln-Asn-Cys-Pro-Val-Gly (NH2) Sharks (Sq. acanthias)
Aspargtocin Cys-Tyr-Ile-Asn-Asn-Cys-Pro-Leu-Gly (NH2) Sharks (Sq. acanthias)
Asvatocin Cys-Tyr-Ile-Asn-Asn-Cys-Pro-Val-Gly (NH2) Sharks (Sc. canicula; T. scyllium)
Phasitocin Cys-Tyr-Phe-Asn-Asn-Cys-Pro-Ile-Gly (NH2) Sharks (T. scyllium)
Phasvatocin Cys-Tyr-Phe-Asn-Asn-Cys-Pro-Val-Gly (NH2) Sharks (Sc. canicula)
  1. Adapted from Gimpl and Fahrenholz [47], and Hyodo et al. [48].