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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
biochemistry, genetics and molecular biology
Red pigment-concentrating hormone is not limited to crustaceans
Biochemical and Biophysical Research Communications, Volume 309, No. 4, Year 2003
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Description
A peptide that was previously assumed to occur exclusively in crustaceans is found in the corpora cardiaca of the stinkbug, Nezara viridula. The sequence of the peptide was deduced from the multiple MSN electrospray mass data as that of an octapeptide: pGlu-Ile/Leu-Asn-Phe-Ser-Pro-Gly-Trp amide. This peptide with Leu at position 2 is known as crustacean red pigment-concentrating hormone and code-named Panbo-RPCH. The ambiguity about the amino acid at position 2, Leu or Ile, was solved by isolating the peptide in a single-step by reversed-phase HPLC and establishing co-elution with authentic Panbo-RPCH but not with the Ile2-analog. When injected into stinkbugs, synthetic Panbo-RPCH elicited an increase of lipids in the haemolymph. Thus, it is assumed that Panbo-RPCH functions in the stinkbug as a lipid-mobilizing hormone. © 2003 Elsevier Inc. All rights reserved.
Authors & Co-Authors
Gáde, Gerd
South Africa, Cape Town
University of Cape Town
Auerswald, Lutz
South Africa, Cape Town
University of Cape Town
Simek, P.
Czech Republic, Ceske Budejovice
Institute of Entomology, Biology Centre of the Academy of Sciences of the Czech Republic
Marco, Heather G.
South Africa, Cape Town
University of Cape Town
Kodrík, Dalibor
Czech Republic, Ceske Budejovice
Institute of Entomology, Biology Centre of the Academy of Sciences of the Czech Republic
Statistics
Citations: 56
Authors: 5
Affiliations: 2
Identifiers
Doi:
10.1016/j.bbrc.2003.08.107
ISSN:
0006291X