The putative AKH receptor of the tobacco hornworm, Manduca sexta, and its expression

R. Ziegler, J. Isoe, W. Moore, M. A. Riehle, M. A. Wells

Research output: Contribution to journalArticle

28 Scopus citations

Abstract

Adipokinetic hormones are peptide hormones that mobilize lipids and/or carbohydrates for flight in adult insects and activate glycogen Phosphorylase in larvae during starvation and during molt. We previously examined the functional roles of adipokinetic hormone in Manduca sexta L. (Lepidoptera: Sphingidae). Here we report the cloning of the full-length cDNA encoding the putative adipokinetic hormone receptor from the fat body of M. sexta. The sequence analysis shows that the deduced amino acid sequence shares common motifs of G protein-coupled receptors, by having seven hydrophobic transmembrane segments. We examined the mRNA expression pattern of the adipokinetic hormone receptor by quantitative Real-Time PCR in fat body during development and in different tissues and found the strongest expression in fat body of larvae two days after molt to the fifth instar. We discuss these results in relation to some of our earlier results. We also compare the M. sexta adipokinetic hormone receptor with the known adipokinetic hormone receptors of other insects and with gonadotropin releasing hormone-like receptors of invertebrates.

Original languageEnglish (US)
Article number40
JournalJournal of Insect Science
Volume11
DOIs
StatePublished - 2011

Keywords

  • Adipokinetic hormone
  • Real Time PCR
  • adipokinetic hormone receptor
  • fat body
  • mRNA expression

ASJC Scopus subject areas

  • Insect Science

Fingerprint Dive into the research topics of 'The putative AKH receptor of the tobacco hornworm, Manduca sexta, and its expression'. Together they form a unique fingerprint.

  • Cite this