Molecular cloning and functional expression of a novel rat heart P2X purinoceptor

Miguel Garcia-Guzman; Florentina Soto; Bodo Laube; Walter Stühmer

doi:10.1016/0014-5793(96)00499-1

Molecular cloning and functional expression of a novel rat heart P2X purinoceptor

Miguel Garcia-Guzman, Florentina Soto, Bodo Laube, Walter Stühmer

Department of Ophthalmology and Visual Sciences

Research output: Contribution to journal › Article › peer-review

105 Scopus citations

Abstract

Here we describe a novel purinergic receptor, the P2X5 receptor, cloned from rat heart. The full-length cDNA encodes a protein 455 amino acids long which shares an overall identity of 40-47% with other members of the P2X purinergic receptor family, P2X5 mRNA transcripts are found predominantly in rat heart but are also present in brain, spinal cord and adrenal gland. Functional expression of the recombinant receptor in HEK-293 cells shows a current that resembles mostly the P2X2 phenotype: the ATP-activated current reveals little agonist desensitization, is not activated by α,β-meATP and is completely blocked by suramin and PPADS.

Original language	English
Pages (from-to)	123-127
Number of pages	5
Journal	FEBS Letters
Volume	388
Issue number	2-3
DOIs	https://doi.org/10.1016/0014-5793(96)00499-1
State	Published - Jun 17 1996

Keywords

ATP receptor
CNS
Heart
PPADS
Purine receptor
Suramin

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10.1016/0014-5793(96)00499-1

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abstract = "Here we describe a novel purinergic receptor, the P2X5 receptor, cloned from rat heart. The full-length cDNA encodes a protein 455 amino acids long which shares an overall identity of 40-47% with other members of the P2X purinergic receptor family, P2X5 mRNA transcripts are found predominantly in rat heart but are also present in brain, spinal cord and adrenal gland. Functional expression of the recombinant receptor in HEK-293 cells shows a current that resembles mostly the P2X2 phenotype: the ATP-activated current reveals little agonist desensitization, is not activated by α,β-meATP and is completely blocked by suramin and PPADS.",

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AU - Stühmer, Walter

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AB - Here we describe a novel purinergic receptor, the P2X5 receptor, cloned from rat heart. The full-length cDNA encodes a protein 455 amino acids long which shares an overall identity of 40-47% with other members of the P2X purinergic receptor family, P2X5 mRNA transcripts are found predominantly in rat heart but are also present in brain, spinal cord and adrenal gland. Functional expression of the recombinant receptor in HEK-293 cells shows a current that resembles mostly the P2X2 phenotype: the ATP-activated current reveals little agonist desensitization, is not activated by α,β-meATP and is completely blocked by suramin and PPADS.

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Molecular cloning and functional expression of a novel rat heart P2X purinoceptor

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Keywords

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