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Isotocin Bony
fishes Cys-Tyr-Ile-Ser-Asn-Cys-Pro-Gln-Gly-NH2
Glumitocin skates Cys-Tyr-Ile-Asn/Gln-Asn-Cys-Pro-Leu/Val-Gly-NH2
Various tocins...
- birds, fish,
reptiles and
amphibians (mesotocin, isotocin, valitocin,
glumitocin, aspargtocin, vasotocin, seritocin, asvatocin, phasvatocin), in worms...