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Isolation of two AKH-related peptides from cicadas.

Author information

1
Department of Entomology, University of Arizona, Tucson 85721, USA.

Abstract

Two peptides related to locust adipokinetic hormone and crustacean red pigment concentrating hormone were isolated by high performance liquid chromatography from the cicadas Cacama valavata and Diceroprocta semicincta. Both species have the same peptides. The structure of one of the peptides is pGlu-Val-Asn-Phe-Ser-Pro-Ser-Trp-Gly-Asn-amide. The mass spectrum, amino acid composition, and amino acid sequence of the other peptide suggest that it is almost identical to the first peptide. However, the exact nature of the difference between the two peptides could not be determined.

PMID:
7655059
DOI:
10.1002/arch.940290406
[Indexed for MEDLINE]

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