The Drosophila gene CG9918 codes for a pyrokinin-1 receptor

The database from the Drosophila Genome Project contains a gene, CG9918, annotated to code for a G protein-coupled receptor. We cloned the cDNA of this gene and functionally expressed it in Chinese hamster ovary cells. We tested a library of about 25 Drosophila and other insect neuropeptides, and se...

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Veröffentlicht in:Biochemical and biophysical research communications 2005-09, Vol.335 (1), p.14-19
Hauptverfasser: Cazzamali, Giuseppe, Torp, Malene, Hauser, Frank, Williamson, Michael, Grimmelikhuijzen, Cornelis J.P.
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container_title Biochemical and biophysical research communications
container_volume 335
creator Cazzamali, Giuseppe
Torp, Malene
Hauser, Frank
Williamson, Michael
Grimmelikhuijzen, Cornelis J.P.
description The database from the Drosophila Genome Project contains a gene, CG9918, annotated to code for a G protein-coupled receptor. We cloned the cDNA of this gene and functionally expressed it in Chinese hamster ovary cells. We tested a library of about 25 Drosophila and other insect neuropeptides, and seven insect biogenic amines on the expressed receptor and found that it was activated by low concentrations of the Drosophila neuropeptide, pyrokinin-1 (TGPSASSGLWFGPRLamide; EC 50, 5 × 10 −8 M). The receptor was also activated by other Drosophila neuropeptides, terminating with the sequence PRLamide (Hug-γ, ecdysis-triggering-hormone-1, pyrokinin-2), but in these cases about six to eight times higher concentrations were needed. The receptor was not activated by Drosophila neuropeptides, containing a C-terminal PRIamide sequence (such as ecdysis-triggering-hormone-2), or PRVamide (such as capa-1 and -2), or other neuropeptides and biogenic amines not related to the pyrokinins. This paper is the first conclusive report that CG9918 is a Drosophila pyrokinin-1 receptor gene.
doi_str_mv 10.1016/j.bbrc.2005.07.038
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subjects Amino Acid Sequence
Animals
Base Sequence
Capability gene
CHO Cells
Cricetinae
Diapause
DNA, Complementary - genetics
Drosophila
Drosophila - chemistry
Drosophila - genetics
Drosophila - metabolism
Drosophila Proteins - chemistry
Drosophila Proteins - genetics
Drosophila Proteins - metabolism
Ecdysis
Evolution
Exons - genetics
G protein-coupled receptor
GPCR
Honey bee
Hugin gene
Insect
Introns - genetics
Malaria
Molecular Sequence Data
Mosquito
Neurohormone
Neuromedin
Neuropeptide
Neuropeptides - metabolism
Peptide hormone
Phylogeny
Pyrokinin
Receptors, G-Protein-Coupled - chemistry
Receptors, G-Protein-Coupled - genetics
Receptors, G-Protein-Coupled - metabolism
Sequence Alignment
Sex pheromone
Transcription, Genetic - genetics
title The Drosophila gene CG9918 codes for a pyrokinin-1 receptor
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