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BioAssay: AID 217705

Affinity towards vasopressin receptor in porcine renal medullary membrane using [3H]LVP

In a continuing effort to design more potent renal vasopressin (V2 receptor) antagonists, we have focused our attention on the carboxy-terminal tripeptide tail (Pro-Arg-Gly-NH2), a fragment common to both agonists and antagonists. Vasopressin antagonist analogues having a dibasic dipeptide tail, e.g., Arg-Arg-NH2 or Arg-Lys-NH2, attached directly to the cyclic hexapeptide ring are potent more ..
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 Tested Compounds
 Tested Compounds
All(10)
 
 
Active(9)
 
 
Unspecified(1)
 
 
 Tested Substances
 Tested Substances
All(10)
 
 
Active(9)
 
 
Unspecified(1)
 
 
AID: 217705
Data Source: ChEMBL (215033)
Depositor Category: Literature, Extracted
BioAssay Version:
Deposit Date: 2010-05-21
Modify Date: 2014-08-24

Data Table ( Complete ):           View Active Data    View All Data
Target
Sequence: RecName: Full=Vasopressin V2 receptor; Short=V2R; AltName: Full=AVPR V2; AltName: Full=Antidiuretic hormone receptor; AltName: Full=Renal-type arginine vasopressin receptor
Description ..   
Comment ..   

Gene:AVPR2     Conserved Domain     Related Protein 3D Structures     More BioActivity Data..
BioActive Compounds: 9
Description:
Title: Potent vasopressin antagonists modified at the carboxy-terminal tripeptide tail.

Abstract: In a continuing effort to design more potent renal vasopressin (V2 receptor) antagonists, we have focused our attention on the carboxy-terminal tripeptide tail (Pro-Arg-Gly-NH2), a fragment common to both agonists and antagonists. Vasopressin antagonist analogues having a dibasic dipeptide tail, e.g., Arg-Arg-NH2 or Arg-Lys-NH2, attached directly to the cyclic hexapeptide ring are potent V2-receptor antagonists. Similar modification of a representative agonist drastically reduces its potency. We report the synthesis and pharmacological properties of a series of potent V2-receptor antagonists 3-9 where a combination of D or L dibasic dipeptide has been utilized to replace the common tripeptide fragment. Our results suggest a difference in the way agonists and antagonists bind to vasopressin receptor and further support the difference in the structure-activity relationships of agonists and antagonists. These results provide potentially useful insights for the design of novel V2-receptor antagonists.
(PMID: 2960813)
Comment
Compounds with activity <= 50uM or explicitly reported as active by ChEMBL are flagged as active in this PubChem assay presentation.
Categorized Comment - additional comments and annotations
From BioAssay Depositor:
Assay Type: Binding
Target Type: Target is a single protein chain
Assay Data Source: Scientific Literature
Result Definitions
TIDNameDescriptionHistogramTypeUnit
OutcomeThe BioAssay activity outcomeOutcome
1K bind activity commentK bind activity commentString
2K bind standard flagK bind standard flagInteger
3K bind qualifierK bind qualifierString
4K bind published valueK bind published valueFloatnM
5K bind standard valueK bind standard valueFloatnM

Data Table (Concise)
Data Table ( Complete ):     View Active Data    View All Data
Classification
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