title: Cloning and transcriptional expression of a leucokinin-like peptide receptor from the southern cattle tick, Boophilus microplus (Acari: Ixodidae).
abstract: Leucokinins are invertebrate neuropeptides that exhibit myotropic and diuretic activity. Only one leucokinin-like peptide receptor is known, the lymnokinin receptor from the mollusc Lymnaea stagnalis. A cDNA encoding a leucokinin-like peptide receptor was cloned from the Southern cattle tick, Boophilus microplus, a pest of cattle world-wide. This is the first neuropeptide receptor known from the Acari and the second known in the subfamily of leucokinin-like peptide G-protein-coupled receptors. The deduced amino acid sequence exhibits 40% identity to the lymnokinin receptor. The receptor transcript is present in all tick life stages as determined by semiquantitative reverse transcription polymerase chain reaction. We also propose that the sequence AAF50775.1 from the Drosophila melanogaster genome (CG10626) encodes the first identified insect leucokinin receptor.
authors.affiliation: Department of Entomology, Texas A & M University, College Station, Texas, 77843-2475, USA.
authors.forename: S P
authors.initials: SP
authors.lastname: Holmes
authors.forename: H
authors.initials: H
authors.lastname: He
authors.forename: A C
authors.initials: AC
authors.lastname: Chen
authors.forename: G W
authors.initials: GW
authors.lastname: lvie
authors.forename: P V
authors.initials: PV
authors.lastname: Pietrantonio
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D060829:Arthropod Proteins; D001483:Base Sequence; D003001:Cloning, Molecular; D015870:Gene Expression; D008969:Molecular Sequence Data; D008970:Molecular Weight; D016366:Open Reading Frames; D016133:Polymerase Chain Reaction; D018013:Receptors, Neuropeptide / Q000737:chemistry / Q000235:genetics* / Q000378:metabolism; D020133:Reverse Transcriptase Polymerase Chain Reaction; D013987:Ticks / Q000235:genetics* / Q000254:growth & development / Q000378:metabolism
chemical_list: D060829:Arthropod Proteins; D018013:Receptors, Neuropeptide; C419691:leucokinin-like peptide receptor, cattle tick