ID 5HT1A_MOUSE Reviewed; 421 AA. AC Q64264; Q60956; Q61617; Q8BGS4; DT 01-NOV-1997, integrated into UniProtKB/Swiss-Prot. DT 27-JUL-2011, sequence version 2. DT 27-MAR-2024, entry version 186. DE RecName: Full=5-hydroxytryptamine receptor 1A; DE Short=5-HT-1A; DE Short=5-HT1A; DE AltName: Full=Serotonin receptor 1A; GN Name=Htr1a; Synonyms=Gpcr18; OS Mus musculus (Mouse). OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; OC Eutheria; Euarchontoglires; Glires; Rodentia; Myomorpha; Muroidea; Muridae; OC Murinae; Mus; Mus. OX NCBI_TaxID=10090; RN [1] RP NUCLEOTIDE SEQUENCE [MRNA], FUNCTION, AND SUBCELLULAR LOCATION. RC STRAIN=NIH Swiss; TISSUE=Brain; RX PubMed=8254366; DOI=10.1523/jneurosci.13-12-05164.1993; RA Charest A., Wainer B.H., Albert P.R.; RT "Cloning and differentiation-induced expression of a murine serotonin 1A RT receptor in a septal cell line."; RL J. Neurosci. 13:5164-5171(1993). RN [2] RP NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA]. RC STRAIN=C57BL/6J; RC TISSUE=Brain cortex, Corpora quadrigemina, and Hippocampus; RX PubMed=16141072; DOI=10.1126/science.1112014; RA Carninci P., Kasukawa T., Katayama S., Gough J., Frith M.C., Maeda N., RA Oyama R., Ravasi T., Lenhard B., Wells C., Kodzius R., Shimokawa K., RA Bajic V.B., Brenner S.E., Batalov S., Forrest A.R., Zavolan M., Davis M.J., RA Wilming L.G., Aidinis V., Allen J.E., Ambesi-Impiombato A., Apweiler R., RA Aturaliya R.N., Bailey T.L., Bansal M., Baxter L., Beisel K.W., Bersano T., RA Bono H., Chalk A.M., Chiu K.P., Choudhary V., Christoffels A., RA Clutterbuck D.R., Crowe M.L., Dalla E., Dalrymple B.P., de Bono B., RA Della Gatta G., di Bernardo D., Down T., Engstrom P., Fagiolini M., RA Faulkner G., Fletcher C.F., Fukushima T., Furuno M., Futaki S., RA Gariboldi M., Georgii-Hemming P., Gingeras T.R., Gojobori T., Green R.E., RA Gustincich S., Harbers M., Hayashi Y., Hensch T.K., Hirokawa N., Hill D., RA Huminiecki L., Iacono M., Ikeo K., Iwama A., Ishikawa T., Jakt M., RA Kanapin A., Katoh M., Kawasawa Y., Kelso J., Kitamura H., Kitano H., RA Kollias G., Krishnan S.P., Kruger A., Kummerfeld S.K., Kurochkin I.V., RA Lareau L.F., Lazarevic D., Lipovich L., Liu J., Liuni S., McWilliam S., RA Madan Babu M., Madera M., Marchionni L., Matsuda H., Matsuzawa S., Miki H., RA Mignone F., Miyake S., Morris K., Mottagui-Tabar S., Mulder N., Nakano N., RA Nakauchi H., Ng P., Nilsson R., Nishiguchi S., Nishikawa S., Nori F., RA Ohara O., Okazaki Y., Orlando V., Pang K.C., Pavan W.J., Pavesi G., RA Pesole G., Petrovsky N., Piazza S., Reed J., Reid J.F., Ring B.Z., RA Ringwald M., Rost B., Ruan Y., Salzberg S.L., Sandelin A., Schneider C., RA Schoenbach C., Sekiguchi K., Semple C.A., Seno S., Sessa L., Sheng Y., RA Shibata Y., Shimada H., Shimada K., Silva D., Sinclair B., Sperling S., RA Stupka E., Sugiura K., Sultana R., Takenaka Y., Taki K., Tammoja K., RA Tan S.L., Tang S., Taylor M.S., Tegner J., Teichmann S.A., Ueda H.R., RA van Nimwegen E., Verardo R., Wei C.L., Yagi K., Yamanishi H., RA Zabarovsky E., Zhu S., Zimmer A., Hide W., Bult C., Grimmond S.M., RA Teasdale R.D., Liu E.T., Brusic V., Quackenbush J., Wahlestedt C., RA Mattick J.S., Hume D.A., Kai C., Sasaki D., Tomaru Y., Fukuda S., RA Kanamori-Katayama M., Suzuki M., Aoki J., Arakawa T., Iida J., Imamura K., RA Itoh M., Kato T., Kawaji H., Kawagashira N., Kawashima T., Kojima M., RA Kondo S., Konno H., Nakano K., Ninomiya N., Nishio T., Okada M., Plessy C., RA Shibata K., Shiraki T., Suzuki S., Tagami M., Waki K., Watahiki A., RA Okamura-Oho Y., Suzuki H., Kawai J., Hayashizaki Y.; RT "The transcriptional landscape of the mammalian genome."; RL Science 309:1559-1563(2005). RN [3] RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RA Mural R.J., Adams M.D., Myers E.W., Smith H.O., Venter J.C.; RL Submitted (SEP-2005) to the EMBL/GenBank/DDBJ databases. RN [4] RP NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA]. RC TISSUE=Brain; RX PubMed=15489334; DOI=10.1101/gr.2596504; RG The MGC Project Team; RT "The status, quality, and expansion of the NIH full-length cDNA project: RT the Mammalian Gene Collection (MGC)."; RL Genome Res. 14:2121-2127(2004). RN [5] RP NUCLEOTIDE SEQUENCE [GENOMIC DNA] OF 1-23. RC STRAIN=C3H/An; RX PubMed=8626793; DOI=10.1074/jbc.271.8.4417; RA Parks C.L., Shenk T.; RT "The serotonin 1a receptor gene contains a TATA-less promoter that responds RT to MAZ and Sp1."; RL J. Biol. Chem. 271:4417-4430(1996). RN [6] RP NUCLEOTIDE SEQUENCE [MRNA] OF 136-353. RC TISSUE=Testis; RX PubMed=8288218; DOI=10.1006/geno.1993.1452; RA Wilkie T.M., Chen Y., Gilbert D.J., Moore K.J., Yu L., Simon M.I., RA Copeland N.G., Jenkins N.A.; RT "Identification, chromosomal location, and genome organization of mammalian RT G-protein-coupled receptors."; RL Genomics 18:175-184(1993). RN [7] RP DISRUPTION PHENOTYPE, TISSUE SPECIFICITY, AND FUNCTION. RX PubMed=9826725; DOI=10.1073/pnas.95.24.14476; RA Ramboz S., Oosting R., Amara D.A., Kung H.F., Blier P., Mendelsohn M., RA Mann J.J., Brunner D., Hen R.; RT "Serotonin receptor 1A knockout: an animal model of anxiety-related RT disorder."; RL Proc. Natl. Acad. Sci. U.S.A. 95:14476-14481(1998). RN [8] RP DISRUPTION PHENOTYPE, AND FUNCTION. RX PubMed=11080193; DOI=10.1046/j.1471-4159.2000.0752415.x; RA Ase A.R., Reader T.A., Hen R., Riad M., Descarries L.; RT "Altered serotonin and dopamine metabolism in the CNS of serotonin 5-HT(1A) RT or 5-HT(1B) receptor knockout mice."; RL J. Neurochem. 75:2415-2426(2000). RN [9] RP DISRUPTION PHENOTYPE, AND FUNCTION. RX PubMed=17543467; DOI=10.1016/j.neuroscience.2007.04.004; RA Deng D.R., Djalali S., Holtje M., Grosse G., Stroh T., Voigt I., RA Kusserow H., Theuring F., Ahnert-Hilger G., Hortnagl H.; RT "Embryonic and postnatal development of the serotonergic raphe system and RT its target regions in 5-HT1A receptor deletion or overexpressing mouse RT mutants."; RL Neuroscience 147:388-402(2007). RN [10] RP FUNCTION. RX PubMed=18599790; DOI=10.1126/science.1157871; RA Audero E., Coppi E., Mlinar B., Rossetti T., Caprioli A., RA Banchaabouchi M.A., Corradetti R., Gross C.; RT "Sporadic autonomic dysregulation and death associated with excessive RT serotonin autoinhibition."; RL Science 321:130-133(2008). RN [11] RP FUNCTION. RX PubMed=21508226; DOI=10.1523/jneurosci.5836-10.2011; RA Richardson-Jones J.W., Craige C.P., Nguyen T.H., Kung H.F., Gardier A.M., RA Dranovsky A., David D.J., Guiard B.P., Beck S.G., Hen R., Leonardo E.D.; RT "Serotonin-1A autoreceptors are necessary and sufficient for the normal RT formation of circuits underlying innate anxiety."; RL J. Neurosci. 31:6008-6018(2011). CC -!- FUNCTION: G-protein coupled receptor for 5-hydroxytryptamine CC (serotonin). Also functions as a receptor for various drugs and CC psychoactive substances. Ligand binding causes a conformation change CC that triggers signaling via guanine nucleotide-binding proteins (G CC proteins) and modulates the activity of down-stream effectors, such as CC adenylate cyclase. Beta-arrestin family members inhibit signaling via G CC proteins and mediate activation of alternative signaling pathways. CC Signaling inhibits adenylate cyclase activity and activates a CC phosphatidylinositol-calcium second messenger system that regulates the CC release of Ca(2+) ions from intracellular stores. Plays a role in the CC regulation of 5-hydroxytryptamine release and in the regulation of CC dopamine and 5-hydroxytryptamine metabolism. Plays a role in the CC regulation of dopamine and 5-hydroxytryptamine levels in the brain, and CC thereby affects neural activity, mood and behavior. Plays a role in the CC response to anxiogenic stimuli. {ECO:0000269|PubMed:11080193, CC ECO:0000269|PubMed:17543467, ECO:0000269|PubMed:18599790, CC ECO:0000269|PubMed:21508226, ECO:0000269|PubMed:8254366, CC ECO:0000269|PubMed:9826725}. CC -!- SUBUNIT: Heterodimer; heterodimerizes with GPER1. Interacts with YIF1B CC (By similarity). Interacts with GPR39 and GALR1 (By similarity). CC {ECO:0000250|UniProtKB:P08908, ECO:0000250|UniProtKB:P19327}. CC -!- SUBCELLULAR LOCATION: Cell membrane {ECO:0000269|PubMed:8254366}; CC Multi-pass membrane protein {ECO:0000269|PubMed:8254366}. Cell CC projection, dendrite {ECO:0000250|UniProtKB:P19327}. CC -!- TISSUE SPECIFICITY: Most abundantly expressed in midbrain, in dorsal CC raphe and hippocampus. Detected at lower levels in amygdala and brain CC cortex. {ECO:0000269|PubMed:9826725}. CC -!- DISRUPTION PHENOTYPE: Mutant mice display decreased exploratory CC behavior and increased fear-related behavior in anxiogenic CC environments. Mutant mice display altered monoamine metabolism in CC specific parts of the brain, especially in dorsal and medial raphe CC nuclei, thalamus and hypothalamus, leading to altered levels of 5- CC hydroxytryptamine, dopamine and their metabolites, as well as altered CC noradrenaline levels. {ECO:0000269|PubMed:11080193, CC ECO:0000269|PubMed:17543467, ECO:0000269|PubMed:9826725}. CC -!- SIMILARITY: Belongs to the G-protein coupled receptor 1 family. 5- CC hydroxytryptamine receptor subfamily. HTR1A sub-subfamily. CC {ECO:0000255|PROSITE-ProRule:PRU00521}. CC --------------------------------------------------------------------------- CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms CC Distributed under the Creative Commons Attribution (CC BY 4.0) License CC --------------------------------------------------------------------------- DR EMBL; U39391; AAA81519.1; -; mRNA. DR EMBL; AK043668; BAC31611.1; -; mRNA. DR EMBL; AK049814; BAC33931.1; -; mRNA. DR EMBL; AK049884; BAC33970.1; -; mRNA. DR EMBL; AK140194; BAE24273.1; -; mRNA. DR EMBL; CH466568; EDL18479.1; -; Genomic_DNA. DR EMBL; BC138669; AAI38670.1; -; mRNA. DR EMBL; BC138681; AAI38682.1; -; mRNA. DR EMBL; U33820; AAC52572.1; -; Genomic_DNA. DR EMBL; L20339; AAA16850.1; -; mRNA. DR CCDS; CCDS26756.1; -. DR PIR; I49375; I49375. DR RefSeq; NP_032334.2; NM_008308.4. DR AlphaFoldDB; Q64264; -. DR SMR; Q64264; -. DR STRING; 10090.ENSMUSP00000022235; -. DR BindingDB; Q64264; -. DR ChEMBL; CHEMBL3737; -. DR DrugCentral; Q64264; -. DR GlyCosmos; Q64264; 4 sites, No reported glycans. DR GlyGen; Q64264; 4 sites. DR iPTMnet; Q64264; -. DR PhosphoSitePlus; Q64264; -. DR SwissPalm; Q64264; -. DR MaxQB; Q64264; -. DR PaxDb; 10090-ENSMUSP00000022235; -. DR ProteomicsDB; 285688; -. DR Antibodypedia; 2959; 367 antibodies from 39 providers. DR DNASU; 15550; -. DR Ensembl; ENSMUST00000022235.6; ENSMUSP00000022235.5; ENSMUSG00000021721.6. DR GeneID; 15550; -. DR KEGG; mmu:15550; -. DR UCSC; uc007rtu.2; mouse. DR AGR; MGI:96273; -. DR CTD; 3350; -. DR MGI; MGI:96273; Htr1a. DR VEuPathDB; HostDB:ENSMUSG00000021721; -. DR eggNOG; KOG3656; Eukaryota. DR GeneTree; ENSGT00940000154484; -. DR HOGENOM; CLU_009579_11_1_1; -. DR InParanoid; Q64264; -. DR OMA; CAESCYM; -. DR OrthoDB; 2999405at2759; -. DR PhylomeDB; Q64264; -. DR TreeFam; TF316350; -. DR Reactome; R-MMU-390666; Serotonin receptors. DR BioGRID-ORCS; 15550; 2 hits in 77 CRISPR screens. DR PRO; PR:Q64264; -. DR Proteomes; UP000000589; Chromosome 13. DR RNAct; Q64264; Protein. DR Bgee; ENSMUSG00000021721; Expressed in ventral nuclear group and 73 other cell types or tissues. DR GO; GO:0043203; C:axon hillock; ISO:MGI. DR GO; GO:0030425; C:dendrite; IBA:GO_Central. DR GO; GO:0098982; C:GABA-ergic synapse; ISO:MGI. DR GO; GO:0043025; C:neuronal cell body; ISO:MGI. DR GO; GO:0005886; C:plasma membrane; ISS:UniProtKB. DR GO; GO:0042734; C:presynaptic membrane; ISO:MGI. DR GO; GO:0004993; F:G protein-coupled serotonin receptor activity; IDA:MGI. DR GO; GO:0001965; F:G-protein alpha-subunit binding; ISO:MGI. DR GO; GO:0030594; F:neurotransmitter receptor activity; IBA:GO_Central. DR GO; GO:0090722; F:receptor-receptor interaction; ISO:MGI. DR GO; GO:0051378; F:serotonin binding; ISO:MGI. DR GO; GO:0005102; F:signaling receptor binding; ISO:MGI. DR GO; GO:0007198; P:adenylate cyclase-inhibiting serotonin receptor signaling pathway; ISS:UniProtKB. DR GO; GO:0001662; P:behavioral fear response; IMP:UniProtKB. DR GO; GO:0007268; P:chemical synaptic transmission; IBA:GO_Central. DR GO; GO:0035640; P:exploration behavior; IMP:UniProtKB. DR GO; GO:0007186; P:G protein-coupled receptor signaling pathway; ISO:MGI. DR GO; GO:0007187; P:G protein-coupled receptor signaling pathway, coupled to cyclic nucleotide second messenger; IBA:GO_Central. DR GO; GO:0007214; P:gamma-aminobutyric acid signaling pathway; IMP:MGI. DR GO; GO:0014053; P:negative regulation of gamma-aminobutyric acid secretion; ISO:MGI. DR GO; GO:0097114; P:NMDA glutamate receptor clustering; ISO:MGI. DR GO; GO:0031117; P:positive regulation of microtubule depolymerization; ISO:MGI. DR GO; GO:0099171; P:presynaptic modulation of chemical synaptic transmission; ISO:MGI. DR GO; GO:0042053; P:regulation of dopamine metabolic process; IMP:UniProtKB. DR GO; GO:0060259; P:regulation of feeding behavior; ISO:MGI. DR GO; GO:0046883; P:regulation of hormone secretion; IEA:InterPro. DR GO; GO:0014062; P:regulation of serotonin secretion; IMP:UniProtKB. DR GO; GO:0019229; P:regulation of vasoconstriction; IEA:InterPro. DR GO; GO:0042428; P:serotonin metabolic process; IMP:UniProtKB. DR GO; GO:0007210; P:serotonin receptor signaling pathway; IMP:UniProtKB. DR CDD; cd15330; 7tmA_5-HT1A_vertebrates; 1. DR Gene3D; 1.20.1070.10; Rhodopsin 7-helix transmembrane proteins; 1. DR InterPro; IPR000610; 5HT1A_rcpt. DR InterPro; IPR002231; 5HT_rcpt. DR InterPro; IPR000276; GPCR_Rhodpsn. DR InterPro; IPR017452; GPCR_Rhodpsn_7TM. DR PANTHER; PTHR24248; ADRENERGIC RECEPTOR-RELATED G-PROTEIN COUPLED RECEPTOR; 1. DR PANTHER; PTHR24248:SF191; G-PROTEIN COUPLED RECEPTORS FAMILY 1 PROFILE DOMAIN-CONTAINING PROTEIN; 1. DR Pfam; PF00001; 7tm_1; 1. DR PRINTS; PR00512; 5HT1ARECEPTR. DR PRINTS; PR01101; 5HTRECEPTOR. DR PRINTS; PR00237; GPCRRHODOPSN. DR SMART; SM01381; 7TM_GPCR_Srsx; 1. DR SUPFAM; SSF81321; Family A G protein-coupled receptor-like; 1. DR PROSITE; PS00237; G_PROTEIN_RECEP_F1_1; 1. DR PROSITE; PS50262; G_PROTEIN_RECEP_F1_2; 1. DR Genevisible; Q64264; MM. PE 2: Evidence at transcript level; KW Behavior; Cell membrane; Cell projection; Disulfide bond; KW G-protein coupled receptor; Glycoprotein; Membrane; Receptor; KW Reference proteome; Transducer; Transmembrane; Transmembrane helix. FT CHAIN 1..421 FT /note="5-hydroxytryptamine receptor 1A" FT /id="PRO_0000068904" FT TOPO_DOM 1..36 FT /note="Extracellular" FT /evidence="ECO:0000250" FT TRANSMEM 37..62 FT /note="Helical; Name=1" FT /evidence="ECO:0000250" FT TOPO_DOM 63..73 FT /note="Cytoplasmic" FT /evidence="ECO:0000250" FT TRANSMEM 74..98 FT /note="Helical; Name=2" FT /evidence="ECO:0000250" FT TOPO_DOM 99..110 FT /note="Extracellular" FT /evidence="ECO:0000250" FT TRANSMEM 111..132 FT /note="Helical; Name=3" FT /evidence="ECO:0000250" FT TOPO_DOM 133..152 FT /note="Cytoplasmic" FT /evidence="ECO:0000250" FT TRANSMEM 153..178 FT /note="Helical; Name=4" FT /evidence="ECO:0000250" FT TOPO_DOM 179..191 FT /note="Extracellular" FT /evidence="ECO:0000250" FT TRANSMEM 192..217 FT /note="Helical; Name=5" FT /evidence="ECO:0000250" FT TOPO_DOM 218..345 FT /note="Cytoplasmic" FT /evidence="ECO:0000250" FT TRANSMEM 346..367 FT /note="Helical; Name=6" FT /evidence="ECO:0000250" FT TOPO_DOM 368..378 FT /note="Extracellular" FT /evidence="ECO:0000250" FT TRANSMEM 379..403 FT /note="Helical; Name=7" FT /evidence="ECO:0000250" FT TOPO_DOM 404..421 FT /note="Cytoplasmic" FT /evidence="ECO:0000250" FT REGION 237..268 FT /note="Disordered" FT /evidence="ECO:0000256|SAM:MobiDB-lite" FT MOTIF 133..135 FT /note="DRY motif; important for ligand-induced conformation FT changes" FT /evidence="ECO:0000250" FT MOTIF 396..400 FT /note="NPxxY motif; important for ligand-induced FT conformation changes and signaling" FT /evidence="ECO:0000250" FT COMPBIAS 239..253 FT /note="Polar residues" FT /evidence="ECO:0000256|SAM:MobiDB-lite" FT BINDING 116 FT /ligand="ergotamine" FT /ligand_id="ChEBI:CHEBI:190463" FT /ligand_note="agonist" FT /evidence="ECO:0000250|UniProtKB:P28222" FT BINDING 121 FT /ligand="ergotamine" FT /ligand_id="ChEBI:CHEBI:190463" FT /ligand_note="agonist" FT /evidence="ECO:0000250|UniProtKB:P28222" FT BINDING 189 FT /ligand="ergotamine" FT /ligand_id="ChEBI:CHEBI:190463" FT /ligand_note="agonist" FT /evidence="ECO:0000250|UniProtKB:P28222" FT CARBOHYD 10 FT /note="N-linked (GlcNAc...) asparagine" FT /evidence="ECO:0000255" FT CARBOHYD 11 FT /note="N-linked (GlcNAc...) asparagine" FT /evidence="ECO:0000255" FT CARBOHYD 24 FT /note="N-linked (GlcNAc...) asparagine" FT /evidence="ECO:0000255" FT CARBOHYD 30 FT /note="N-linked (GlcNAc...) asparagine" FT /evidence="ECO:0000255" FT DISULFID 109..187 FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00521" FT VARIANT 17..19 FT /note="EPF -> DHL (in strain: C3H/An)" FT CONFLICT 177 FT /note="T -> A (in Ref. 1; AAA81519)" FT /evidence="ECO:0000305" FT CONFLICT 242 FT /note="F -> L (in Ref. 6; AAA16850)" FT /evidence="ECO:0000305" FT CONFLICT 247 FT /note="A -> V (in Ref. 6; AAA16850)" FT /evidence="ECO:0000305" FT CONFLICT 263 FT /note="C -> W (in Ref. 6; AAA16850)" FT /evidence="ECO:0000305" FT CONFLICT 304 FT /note="H -> D (in Ref. 1; AAA81519)" FT /evidence="ECO:0000305" SQ SEQUENCE 421 AA; 46176 MW; 74F519DF7CC0C7AA CRC64; MDMFSLGQGN NTTTSLEPFG TGGNDTGLSN VTFSYQVITS LLLGTLIFCA VLGNACVVAA IALERSLQNV ANYLIGSLAV TDLMVSVLVL PMAALYQVLN KWTLGQVTCD LFIALDVLCC TSSILHLCAI ALDRYWAITD PIDYVNKRTP RRAAALISLT WLIGFLISIP PMLGWRTPED RSNPNECTIS KDHGYTIYST FGAFYIPLLL MLVLYGRIFR AARFRIRKTV KKVEKKGAGT SFGTSSAPPP KKSLNGQPGS GDCRRSAENR AVGTPCANGA VRQGEDDATL EVIEVHRVGN SKGHLPLPSE SGATSYVPAC LERKNERTAE AKRKMALARE RKTVKTLGII MGTFILCWLP FFIVALVLPF CESSCHMPEL LGAIINWLGY SNSLLNPVIY AYFNKDFQNA FKKIIKCKFC R //