Abstract
An oxytocin-vasopressin-related peptide, Cys-Phe-Val-Arg-Asn-Cys-Pro-Thr-Gly-NH2, was isolated from the lumbricid earthworm, Eisenia foetida and termed annectocin. Annetocin potentiated not only spontaneous contractions of the gut but also pulsatory contractions and bladder-shaking movement of the nephridia. Annetocin may be involved in osmoregulation of the animal through nephridial function.
MeSH terms
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Amino Acid Sequence
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Animals
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Biological Assay
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Chromatography, High Pressure Liquid
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Invertebrate Hormones / chemistry*
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Invertebrate Hormones / isolation & purification
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Invertebrate Hormones / pharmacology
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Molecular Sequence Data
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Muscle Contraction / drug effects
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Muscle, Smooth / drug effects
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Muscle, Smooth / physiology
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Oligochaeta / physiology*
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Oxytocin / chemistry*
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Peptides, Cyclic / chemistry*
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Peptides, Cyclic / isolation & purification
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Peptides, Cyclic / pharmacology
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Sequence Homology, Amino Acid
Substances
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Invertebrate Hormones
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Peptides, Cyclic
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annetocin
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Oxytocin