The kappa opioid receptor (KOPR) has been identified as a potential drug target to prevent or alter the course of mood, anxiety and addictive disorders or reduce response to stress. In a search for highly potent and selective KOPR partial agonists as pharmacological tools, we have modified 12-epi-salvinorin A, a compound which we have previously observed to be a KOPR partial agonist. Five more ..
Target
| Sequence: RecName: Full=Kappa-type opioid receptor; Short=K-OR-1; Short=KOR-1 Description ..   Protein Family: Serpentine type 7TM GPCR chemoreceptor Srx Comment .. Gene:OPRK1 Related Protein 3D Structures |
BioActive Compounds: 4
Description:
Title: Differential signaling properties at the kappa opioid receptor of 12-epi-salvinorin A and its analogues.
Abstract: The kappa opioid receptor (KOPR) has been identified as a potential drug target to prevent or alter the course of mood, anxiety and addictive disorders or reduce response to stress. In a search for highly potent and selective KOPR partial agonists as pharmacological tools, we have modified 12-epi-salvinorin A, a compound which we have previously observed to be a KOPR partial agonist. Five analogues of 12-epi-salvinorin A were synthesized and their effects on G protein activation as well as ##-arrestin2 recruitment were evaluated. Only 12-epi-salvinorin A (1) partially activated signaling through G proteins, yet acted as a full agonist in the ##-arrestin 2 DiscoveRx assay. Other salvinorin analogues tested in these functional assays were full agonists in both assays of KOPR activation. By comparison, the non-selective opioid ligand nalbuphine, known to be a partial agonist for G-protein activation, was also a partial agonist for the ##-arrestin mediated signaling pathway activated through KOPR.
(PMID: 22204910)
Abstract: The kappa opioid receptor (KOPR) has been identified as a potential drug target to prevent or alter the course of mood, anxiety and addictive disorders or reduce response to stress. In a search for highly potent and selective KOPR partial agonists as pharmacological tools, we have modified 12-epi-salvinorin A, a compound which we have previously observed to be a KOPR partial agonist. Five analogues of 12-epi-salvinorin A were synthesized and their effects on G protein activation as well as ##-arrestin2 recruitment were evaluated. Only 12-epi-salvinorin A (1) partially activated signaling through G proteins, yet acted as a full agonist in the ##-arrestin 2 DiscoveRx assay. Other salvinorin analogues tested in these functional assays were full agonists in both assays of KOPR activation. By comparison, the non-selective opioid ligand nalbuphine, known to be a partial agonist for G-protein activation, was also a partial agonist for the ##-arrestin mediated signaling pathway activated through KOPR.
(PMID: 22204910)
Comment
Compounds with activity <= 50uM or explicitly reported as active by ChEMBL are flagged as active in this PubChem assay presentation.
Categorized Comment
ChEMBL Assay Type: Functional
ChEMBL Assay Data Source: Scientific Literature
ChEMBL Target ID: 137
ChEMBL target type: Target is a single protein chain
ChEMBL Assay Data Source: Scientific Literature
ChEMBL Target ID: 137
ChEMBL target type: Target is a single protein chain
Result Definitions
| TID | Name | Description | Histogram | Type | Unit | |
|---|---|---|---|---|---|---|
| Outcome | The BioAssay activity outcome | Outcome | ||||
| 1 | EC50* | EC50 PubChem standard value |  | Float | μM | |
| 2 | EC50 activity comment | EC50 activity comment | String | |||
| 3 | EC50 standard flag | EC50 standard flag | | Integer | ||
| 4 | EC50 qualifier | EC50 qualifier | String | |||
| 5 | EC50 published value | EC50 published value | | Float | nM | |
| 6 | EC50 standard value | EC50 standard value | | Float | nM |
* Activity Concentration.
Data Table (Concise)
Classification
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