UniProt:P08908 HTR1A

chain
  • chain:1-422
checksum 762664FCF62CFD8F
comment
  • FUNCTION G-protein coupled receptor for 5-hydroxytryptamine (serotonin) (PubMed:22957663, PubMed:3138543, PubMed:33762731, PubMed:37935376, PubMed:37935377, PubMed:8138923, PubMed:8393041). Also functions as a receptor for various drugs and psychoactive substances (PubMed:22957663, PubMed:3138543, PubMed:33762731, PubMed:38552625, PubMed:8138923, PubMed:8393041). Ligand binding causes a conformation change that triggers signaling via guanine nucleotide-binding proteins (G proteins) and modulates the activity of downstream effectors, such as adenylate cyclase (PubMed:22957663, PubMed:3138543, PubMed:33762731, PubMed:8138923, PubMed:8393041). HTR1A is coupled to G(i)/G(o) G alpha proteins and mediates inhibitory neurotransmission: signaling inhibits adenylate cyclase activity and activates a phosphatidylinositol-calcium second messenger system that regulates the release of Ca(2+) ions from intracellular stores (PubMed:33762731, PubMed:35610220). Beta-arrestin family members regulate signaling by mediating both receptor desensitization and resensitization processes (PubMed:18476671, PubMed:20363322, PubMed:20945968). Plays a role in the regulation of 5-hydroxytryptamine release and in the regulation of dopamine and 5-hydroxytryptamine metabolism (PubMed:18476671, PubMed:20363322, PubMed:20945968). Plays a role in the regulation of dopamine and 5-hydroxytryptamine levels in the brain, and thereby affects neural activity, mood and behavior (PubMed:18476671, PubMed:20363322, PubMed:20945968). Plays a role in the response to anxiogenic stimuli (PubMed:18476671, PubMed:20363322, PubMed:20945968).ACTIVITY REGULATION G-protein coupled receptor activity is regulated by lipids: phosphatidylinositol 4-phosphate increases HTR1A-mediated activity (PubMed:33762731). Binding to aripiprazol drug is regulated by cholesterol, which shapes the ligand-binding pocket, determining the specificity for aripiprazol (PubMed:33762731). Activated by IHCH-7179 small molecule: IHCH-7179 acts both as an agonist activator for HTR1A and as an antagonist inhibitor for HTR2A (PubMed:38552625). Activated by SEP-363856 small molecule: IHCH-7179 acts both as an agonist activator for HTR1A and TAAR1 (PubMed:37935376, PubMed:37935377).SUBUNIT Heterodimer; heterodimerizes with GPER1 (PubMed:23300088). Interacts with YIF1B (By similarity). Interacts with GPR39 and GALR1 (PubMed:26365466).INTERACTION Detected in lymph nodes, thymus and spleen. Detected in activated T-cells, but not in resting T-cells.DISEASE The disease is caused by variants affecting the gene represented in this entry.SIMILARITY Belongs to the G-protein coupled receptor 1 family. 5-hydroxytryptamine receptor subfamily. HTR1A sub-subfamily.
crossReference
databaseName UniProt
dbId 49164
description
  • recommendedName: 5-hydroxytryptamine receptor 1A shortName evidence="25"5-HT-1A shortName evidence="25"5-HT1A alternativeName: fullName evidence="24"G-21 alternativeName: Serotonin receptor 1A
displayName UniProt:P08908 HTR1A
geneName
  • HTR1A
  • ADRB2RL1
  • ADRBRL1
identifier P08908
isSequenceChanged false
keyword
  • 3D-structure
  • Behavior
  • Cell membrane
  • Cell projection
  • Disulfide bond
  • G-protein coupled receptor
  • Glycoprotein
  • Membrane
  • Proteomics identification
  • Receptor
  • Reference proteome
  • Transducer
  • Transmembrane
  • Transmembrane helix
modified [InstanceEdit:9926675] Weiser, Joel, 2024-11-03
moleculeType Protein
name
  • HTR1A
otherIdentifier
  • 11741081_a_at
  • 11741082_at
  • 16996667
  • 16996670
  • 221351_PM_at
  • 221351_at
  • 236714_PM_at
  • 236714_at
  • 2859388
  • 2859389
  • 2859390
  • 2859391
  • 2859392
  • 2859393
  • 2859394
  • 2859395
  • 2859396
  • 2859397
  • 2859398
  • 3350
  • 47305_at
  • 8112333
  • ADDON002886.hg
  • A_24_P97687
  • GE547469
  • GE554019
  • GO:0001586
  • GO:0001662
  • GO:0003013
  • GO:0004930
  • GO:0004993
  • GO:0005515
  • GO:0005886
  • GO:0007165
  • GO:0007186
  • GO:0007187
  • GO:0007189
  • GO:0007198
  • GO:0007210
  • GO:0007214
  • GO:0007268
  • GO:0008284
  • GO:0014062
  • GO:0016020
  • GO:0019229
  • GO:0030425
  • GO:0030534
  • GO:0030594
  • GO:0035640
  • GO:0042053
  • GO:0042428
  • GO:0042995
  • GO:0045202
  • GO:0046883
  • GO:0050795
  • GO:0051378
  • GO:0090722
  • GO:0098664
  • GO:0099589
  • HMNXSV003031338
  • HMNXSV003052920
  • Hs.56400.0.A1_3p_at
  • Hs.56400.0.A1_3p_x_at
  • ILMN_1813690
  • M83181_at
  • TC05001404.hg
  • g4504530_3p_at
  • p13190
physicalEntity
referenceDatabase [ReferenceDatabase:2] UniProt
referenceGene
referenceTranscript
schemaClass ReferenceGeneProduct
secondaryIdentifier
  • 5HT1A_HUMAN
  • Q6LAE7
sequenceLength 422
species [Species:48887] Homo sapiens
stId uniprot:P08908
url http://purl.uniprot.org/uniprot/P08908
Cite Us!