Aliases: MOR1, MOP.
Relationship is the entry's genetic[].relationship_type. untyped means the entry has a genetic record for the gene but does not type it; its free-text association is shown instead.
| Disorder | Relationship | Where the gene appears |
|---|---|---|
| Alcohol Use Disorder | susceptibility | |
| Opioid Use Disorder | susceptibility |
mechanism: Polygenic Susceptibility to Opioid Addiction
|
| Acute Opioid Poisoning | no genetic record |
mechanism: Central Mu-Opioid Receptor Overactivation
|
Identity from HGNC (snapshot 2026-10-01). Page layers are described in the gene pages documentation.