Receptor for endogenous opioids such as beta-endorphin and endomorphin. Receptor for natural and synthetic opioids including morphine, heroin, DAMGO, fentanyl, etorphine, buprenorphin and methadone (PubMed:7905839, PubMed:7957926, PubMed:7891175, PubMed:12589820, PubMed:9689128). Agonist binding to the receptor induces coupling to an inactive GDP-bound heterotrimeric G-protein complex and subsequent exchange of GDP for GTP in the G-protein alpha subunit leading to dissociation of the G-protein complex with the free GTP-bound G-protein alpha and the G-protein beta-gamma dimer activating downstream cellular effectors (PubMed:7905839). The agonist- and cell type-specific activity is predominantly coupled to pertussis toxin-sensitive G(i) and G(o) G alpha proteins, GNAI1, GNAI2, GNAI3 and GNAO1 isoforms Alpha-1 and Alpha-2, and to a lesser extent to pertussis toxin-insensitive G alpha proteins GNAZ and GNA15 (PubMed:12068084). They mediate an array of downstream cellular responses, includi ...more
Description of the protein which includes the UniProt Function and the NCBI Gene Summary.
Uniprot linked accession values, symbols or commonly used abbreviations associated with this particular target.
Approved gene symbol with link to HUGO Gene Nomenclature Committee.
Ensembl identifier links.
List of abbreviations or acronyms of the full target name.
Radar plot depicting the variety of knowledge obtained by Pharos for a particular target. The more spikes in the plot, the more variety. The longer the length, the higher the quantity of that particular knowledge. Clicking the illumination graph opens an expanded view to explore the plot fuller by seeing plot with annotations of the different radii.
Table representing the top 5 knowledge attributes in the illumination graph. The knowledge value property is on a scale of 0 to 1.
Gene symbols, accession ids and various other target identifiers. Also contains the illumination graph which highlights the amount of knowledge available. Click the '?' button for more information
click for section description and definitions
Hierarchical classifications for this protein from different ontologies.
Classes for this protein according to Protein ANalysis THrough Evolutionary Relationships (PANTHER) Classification System.
Explore targets in this PANTHER class
Classes for this protein according to by Drug Target Ontology (DTO).
Explore targets in this DTO class
Descriptions of the IDG illumination levels, highlighting the milestones attained in research for this target.
Jensen Lab generated fractional counting score for the prevalence of this gene in Pubmed articles.
Total count of NCBI Gene Reference Into Function hits for target listed in parenthesis, and summary table with links to publications per PMID with the specific text in article that includes the reported target.
Number of antibodies for this target listed in antibodypedia.com
Number of Gene Ontology (GO) annotations for this target, consisting of the sum of GO Functions and GO Processes.
Ligands associated with a target, listed in ChEMBL, with activity over a cutoff relative to the targetclass.