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XB-ART-17420
Biochem J 1996 Nov 15;320 ( Pt 1):1-5. doi: 10.1042/bj3200001.
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Functional characterization by heterologous expression of a novel cloned tachykinin peptide receptor.

Donaldson LF , Haskell CA , Hanley MR .


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An orphan receptor resembling the neurokinin 3 tachykinin receptor (NK3), initially claimed to be an atypical opioid receptor, is shown herein to respond potently to the physiological NK3 receptor ligand, neurokinin B. This 'NK4' receptor did not give functional responses in Xenopus oocytes to opioid agonists. However, NK4 receptor activation was inhibited by nanomolar concentrations of dynorphin. The NK4 receptor is therefore a tachykinin receptor which is functionally antagonized by an endogenous opioid peptide.

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Species referenced: Xenopus laevis
Genes referenced: tac1

References [+] :
Buell, Molecular characterisation, expression and localisation of human neurokinin-3 receptor. 1992, Pubmed, Xenbase