Title: Isolation, identification and synthesis of AKH-I4-10 from Locusta migratoria
Authors: Schoofs, Liliane ×
Holman, G M
Proost, Paul
Van Damme, Jozef
Neven, H
Oudejans, R C
De Loof, Arnold #
Issue Date: Jun-1993
Publisher: Academic Press
Series Title: General and Comparative Endocrinology vol:90 issue:3 pages:364-71
Abstract: A heptapeptide was isolated from brain-corpora cardiaca-corpora allata-suboesophageal ganglion extracts of the locust, Locusta migratoria. Biological activity was monitored during HPLC purification by observing the myotropic effect of column fractions on the isolated hindgut of Leucophaea maderae. The primary structure of this myotropic peptide was established as: Phe-Thr-Pro-Asn-Trp-Gly-Thr-NH2. The chromatographic and biological properties of the synthetic peptide were the same as those of the native peptide, thus confirming structural analysis. This heptapeptide is identical to the carboxyterminal heptamer of AKH-I and therefore designated as AKH-I4-10. AKH-I4-10 has no adipokinetic activity. AKH-I4-10 is most likely a breakdown product of Lom-AKH-I, suggesting that an endopeptidase which cleaves between Asn and Phe is present in the brain complex of L. migratoria. Such an endopeptidase has recently been characterized in in synaptic membranes of the nervous system of Schistocerca gregaria.
ISSN: 0016-6480
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Animal Physiology and Neurobiology Section - miscellaneous
Academic Center for General Practice
Laboratory of Molecular Immunology (Rega Institute)
Department of Biology - miscellaneous
× corresponding author
# (joint) last author

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