| 2845 | Htr1a | 5-hydroxytryptamine receptor 1A | ENCODES a protein that exhibits G protein-coupled serotonin receptor activity; G-protein alpha-subunit binding; serotonin binding; INVOLVED IN adenylate cyclase-inhibiting serotonin receptor signaling pathway; behavioral response to nicotine; negative regulation of gamma-aminobutyric acid secretion; PARTICIPATES IN alfentanil pharmacodynamics pathway; bupivacaine pharmacodynamics pathway; buprenorphine pharmacodynamics pathway; ASSOCIATED WITH alcohol use disorder; anxiety disorder; Catalepsy; FOUND IN axon hillock; GABA-ergic synapse; neuronal cell body; INTERACTS WITH (+)-pilocarpine; (S)-nicotine; 1-(3-chlorophenyl)piperazine | 2 | 38427169 | 38431733 | Rat | 331 | symbol , PhenoGen | gene, protein-coding, VALIDATED [RefSeq] |
| 10745 | Htr1a | 5-hydroxytryptamine (serotonin) receptor 1A | Enables G protein-coupled serotonin receptor activity. Involved in several processes, including behavioral fear response; regulation of serotonin secretion; and serotonin receptor signaling pathway. Acts upstream of or within adult behavior and gamma-aminobutyric acid signaling pathway. Predicted to be located in axon hillock. Predicted to be active in GABA-ergic synapse; dendrite; and presynaptic membrane. Is expressed in several structures, including central nervous system; exocrine gland; eye; genitourinary system; and intestine. Used to study anxiety disorder. Human ortholog(s) of this gene implicated in alcohol dependence; anxiety disorder (multiple); depressive disorder; substance abuse; and withdrawal disorder. Orthologous to human HTR1A (5-hydroxytryptamine receptor 1A). [provided by Alliance of Genome Resources, Jul 2025] | 13 | 105580040 | 105584630 | Mouse | 374 | symbol , PhenoGen , description | gene, protein-coding, VALIDATED [RefSeq] |
| 69020 | HTR1A | 5-hydroxytryptamine receptor 1A | This gene encodes a G protein-coupled receptor for 5-hydroxytryptamine (serotonin), and belongs to the 5-hydroxytryptamine receptor subfamily. Serotonin has been implicated in a number of physiologic processes and pathologic conditions. Inactivation of this gene in mice results in behavior consisten t with an increased anxiety and stress response. Mutation in the promoter of this gene has been associated with menstrual cycle-dependent periodic fevers. [provided by RefSeq, Jun 2012] | 5 | 63957874 | 63962445 | Human | 341 | symbol , COSMIC , Human Proteome Map | gene, protein-coding, VALIDATED [RefSeq] |
| 8965628 | Htr1a | 5-hydroxytryptamine receptor 1A | ENCODES a protein that exhibits G protein-coupled serotonin receptor activity (ortholog); G-protein alpha-subunit binding (ortholog); Gi/o-coupled serotonin receptor activity (ortholog); INVOLVED IN adenylate cyclase-inhibiting serotonin receptor signaling pathway (ortholog); behavioral fear respons e (ortholog); behavioral response to nicotine (ortholog); PARTICIPATES IN alfentanil pharmacodynamics pathway; bupivacaine pharmacodynamics pathway; buprenorphine pharmacodynamics pathway; ASSOCIATED WITH alcohol dependence (ortholog); alcohol use disorder (ortholog); Alzheimer's disease (ortholog); FOUND IN axon hillock (ortholog); GABA-ergic synapse (ortholog); neuronal cell body (ortholog) | NW_004955446 | 4913181 | 4917726 | Chinchilla | 115 | symbol | gene, protein-coding, MODEL [RefSeq] |
| 11823349 | HTR1A | 5-hydroxytryptamine receptor 1A | ENCODES a protein that exhibits G protein-coupled serotonin receptor activity (ortholog); G-protein alpha-subunit binding (ortholog); serotonin binding (ortholog); INVOLVED IN adenylate cyclase-inhibiting serotonin receptor signaling pathway (ortholog); behavioral response to nicotine (ortholog); ga mma-aminobutyric acid signaling pathway (ortholog); PARTICIPATES IN alfentanil pharmacodynamics pathway; bupivacaine pharmacodynamics pathway; buprenorphine pharmacodynamics pathway; ASSOCIATED WITH alcohol dependence (ortholog); alcohol use disorder (ortholog); Alzheimer's disease (ortholog); FOUND IN axon hillock (ortholog); GABA-ergic synapse (ortholog); neuronal cell body (ortholog) | 5 | 50045266 | 50049636 | Bonobo | 132 | symbol | gene, protein-coding, MODEL [RefSeq] |
| 12113428 | HTR1A | 5-hydroxytryptamine receptor 1A | ENCODES a protein that exhibits G protein-coupled serotonin receptor activity (ortholog); G-protein alpha-subunit binding (ortholog); Gi/o-coupled serotonin receptor activity (ortholog); INVOLVED IN adenylate cyclase-inhibiting serotonin receptor signaling pathway (ortholog); behavioral fear respons e (ortholog); behavioral response to nicotine (ortholog); PARTICIPATES IN alfentanil pharmacodynamics pathway; bupivacaine pharmacodynamics pathway; buprenorphine pharmacodynamics pathway; ASSOCIATED WITH alcohol dependence (ortholog); alcohol use disorder (ortholog); Alzheimer's disease (ortholog); FOUND IN axon hillock (ortholog); GABA-ergic synapse (ortholog); neuronal cell body (ortholog) | 2 | 50005277 | 50006548 | Dog | 134 | symbol | gene, protein-coding, PROVISIONAL [RefSeq] |
| 12663985 | Htr1a | 5-hydroxytryptamine receptor 1A | ENCODES a protein that exhibits G protein-coupled serotonin receptor activity (ortholog); G-protein alpha-subunit binding (ortholog); serotonin binding (ortholog); INVOLVED IN adenylate cyclase-inhibiting serotonin receptor signaling pathway (ortholog); behavioral response to nicotine (ortholog); ga mma-aminobutyric acid signaling pathway (ortholog); PARTICIPATES IN alfentanil pharmacodynamics pathway; bupivacaine pharmacodynamics pathway; buprenorphine pharmacodynamics pathway; ASSOCIATED WITH alcohol dependence (ortholog); alcohol use disorder (ortholog); Alzheimer's disease (ortholog); FOUND IN axon hillock (ortholog); GABA-ergic synapse (ortholog); neuronal cell body (ortholog) | NW_004936480 | 5042531 | 5047157 | Squirrel | 129 | symbol | gene, protein-coding, MODEL [RefSeq] |
| 14169346 | HTR1A | 5-hydroxytryptamine receptor 1A | ENCODES a protein that exhibits G protein-coupled serotonin receptor activity (ortholog); G-protein alpha-subunit binding (ortholog); serotonin binding (ortholog); INVOLVED IN adenylate cyclase-inhibiting serotonin receptor signaling pathway (ortholog); behavioral response to nicotine (ortholog); ga mma-aminobutyric acid signaling pathway (ortholog); PARTICIPATES IN alfentanil pharmacodynamics pathway; bupivacaine pharmacodynamics pathway; buprenorphine pharmacodynamics pathway; ASSOCIATED WITH alcohol dependence (ortholog); alcohol use disorder (ortholog); Alzheimer's disease (ortholog); FOUND IN axon hillock (ortholog); GABA-ergic synapse (ortholog); neuronal cell body (ortholog) | | | | Pig | 130 | symbol | gene, protein-coding, MODEL [RefSeq] |
| 155250765 | htr1a | | | | | | Tropical Clawed Frog | | symbol | gene, null |
| 18936160 | Htr1a | 5-hydroxytryptamine receptor 1A | ENCODES a protein that exhibits G protein-coupled serotonin receptor activity (ortholog); G-protein alpha-subunit binding (ortholog); Gi/o-coupled serotonin receptor activity (ortholog); INVOLVED IN adenylate cyclase-inhibiting serotonin receptor signaling pathway (ortholog); behavioral response to nicotine (ortholog); gamma-aminobutyric acid signaling pathway (ortholog); PARTICIPATES IN alfentanil pharmacodynamics pathway; bupivacaine pharmacodynamics pathway; buprenorphine pharmacodynamics pathway; ASSOCIATED WITH alcohol dependence (ortholog); alcohol use disorder (ortholog); Alzheimer's disease (ortholog); FOUND IN axon hillock (ortholog); GABA-ergic synapse (ortholog); neuronal cell body (ortholog) | | | | Naked Mole-Rat | 128 | symbol | gene, protein-coding, MODEL [RefSeq] |
| 626055483 | Htr1a | 5-hydroxytryptamine receptor 1A | ENCODES a protein that exhibits G protein-coupled serotonin receptor activity (ortholog); G-protein alpha-subunit binding (ortholog); Gi/o-coupled serotonin receptor activity (ortholog); INVOLVED IN adenylate cyclase-inhibiting serotonin receptor signaling pathway (ortholog); behavioral fear respons e (ortholog); behavioral response to nicotine (ortholog); PARTICIPATES IN alfentanil pharmacodynamics pathway; bupivacaine pharmacodynamics pathway; buprenorphine pharmacodynamics pathway; ASSOCIATED WITH alcohol dependence (ortholog); alcohol use disorder (ortholog); Alzheimer's disease (ortholog); FOUND IN axon hillock (ortholog); GABA-ergic synapse (ortholog); neuronal cell body (ortholog) | | | | Black Rat | 115 | symbol | gene, protein-coding, MODEL [RefSeq] |
| 18700515 | HTR1A | 5-hydroxytryptamine receptor 1A | ENCODES a protein that exhibits G protein-coupled serotonin receptor activity (ortholog); G-protein alpha-subunit binding (ortholog); serotonin binding (ortholog); INVOLVED IN adenylate cyclase-inhibiting serotonin receptor signaling pathway (ortholog); behavioral response to nicotine (ortholog); ga mma-aminobutyric acid signaling pathway (ortholog); PARTICIPATES IN alfentanil pharmacodynamics pathway; bupivacaine pharmacodynamics pathway; buprenorphine pharmacodynamics pathway; ASSOCIATED WITH alcohol dependence (ortholog); alcohol use disorder (ortholog); Alzheimer's disease (ortholog); FOUND IN axon hillock (ortholog); GABA-ergic synapse (ortholog); neuronal cell body (ortholog) | | | | Green Monkey | 132 | symbol | gene, protein-coding, MODEL [RefSeq] |
| 155258446 | htr1a.L | | | | | | African Clawed Frog | | symbol | gene, null |
| 155250230 | htr1a.S | | | | | | African Clawed Frog | | symbol | gene, null |
| 1581496 | Htr1am1Mcwi | 5-hydroxytryptamine receptor 1A; mutation 1, Medical College of Wisconsin | mutation generated by ENU (N-ethyl-N-nitrourea); C266Y mutation is generated from the codon change TGT/TAT | | | | Rat | | symbol , old_gene_symbol | gene, allele |
| 1599562 | Htr1am2Mcwi | 5-hydroxytryptamine receptor 1A; mutation 2, Medical College of Wisconsin | mutation generated by ENU (N-ethyl-N-nitrourea); G76R mutation is generated from the codon change GGC/CGC | | | | Rat | | symbol , old_gene_symbol | gene, allele |
| 16558099 | AC122707.1 | novel transcript, sense overlapping HTR1A | | | | | Human | | name | gene, lncrna |