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Molecular Cloning and Pharmacological Characterization of the Canine B1 and B2 Bradykinin Receptors

Molecular Cloning and Pharmacological Characterization of the Canine B1 and B2 Bradykinin Receptors Abstract The dog is a valuable animal model in the study of the physiological role of both the B1 and B2 bradykinin receptors. To more thoroughly characterize the pharmacological properties of the canine kinin receptors we isolated the cDNA sequence encoding the B1 and B2 bradykinin receptor subtypes and overexpressed them in Chinese hamster ovary (CHO) cells. The cDNA sequence of the canine B1 bradykinin receptor encodes a protein comprised of 350 amino acids that is 76% identical to the human B1 bradykinin receptor. The cDNA sequence of the canine B2 bradykinin receptor encodes a protein of 392 amino acids that is 81% identical to the human B2 bradykinin receptor. The amino acid sequence of the canine B1 and B2 receptors are 35% identical. Pharmacological studies of the cloned receptors revealed that the agonist affinity of the dog B1 receptor is similar to the rodent B1 receptors, and differs from the human form in that there is no preference for the presence of the Nterminal Lys residue of (desArg 10 )Lysbradykinin. Significantly, the B1 receptor antagonist (desArg 9 ,Leu 8 )BK behaves as partial agonist on the cloned dog B1 receptor. The dog B2 receptor exhibits the classical pharmacological properties of this receptor subtype. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Biological Chemistry de Gruyter

Molecular Cloning and Pharmacological Characterization of the Canine B1 and B2 Bradykinin Receptors

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References (30)

Publisher
de Gruyter
Copyright
Copyright © 2001 by the
ISSN
1431-6730
DOI
10.1515/BC.2001.018
pmid
11258662
Publisher site
See Article on Publisher Site

Abstract

Abstract The dog is a valuable animal model in the study of the physiological role of both the B1 and B2 bradykinin receptors. To more thoroughly characterize the pharmacological properties of the canine kinin receptors we isolated the cDNA sequence encoding the B1 and B2 bradykinin receptor subtypes and overexpressed them in Chinese hamster ovary (CHO) cells. The cDNA sequence of the canine B1 bradykinin receptor encodes a protein comprised of 350 amino acids that is 76% identical to the human B1 bradykinin receptor. The cDNA sequence of the canine B2 bradykinin receptor encodes a protein of 392 amino acids that is 81% identical to the human B2 bradykinin receptor. The amino acid sequence of the canine B1 and B2 receptors are 35% identical. Pharmacological studies of the cloned receptors revealed that the agonist affinity of the dog B1 receptor is similar to the rodent B1 receptors, and differs from the human form in that there is no preference for the presence of the Nterminal Lys residue of (desArg 10 )Lysbradykinin. Significantly, the B1 receptor antagonist (desArg 9 ,Leu 8 )BK behaves as partial agonist on the cloned dog B1 receptor. The dog B2 receptor exhibits the classical pharmacological properties of this receptor subtype.

Journal

Biological Chemistryde Gruyter

Published: Jan 6, 2001

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