Identification |
HMDB Protein ID
| HMDBP13902 |
Secondary Accession Numbers
| None |
Name
| 5-hydroxytryptamine receptor 2A |
Synonyms
|
- 5-HT-2
- 5-HT-2A
- Serotonin receptor 2A
|
Gene Name
| HTR2A |
Protein Type
| Unknown |
Biological Properties |
General Function
| Not Available |
Specific Function
| G-protein coupled receptor for 5-hydroxytryptamine (serotonin). Also functions as a receptor for various drugs and psychoactive substances, including mescaline, psilocybin, 1-(2,5-dimethoxy-4-iodophenyl)-2-aminopropane (DOI) and lysergic acid diethylamide (LSD). Ligand binding causes a conformation change that triggers signaling via guanine nucleotide-binding proteins (G proteins) and modulates the activity of down-stream effectors. Beta-arrestin family members inhibit signaling via G proteins and mediate activation of alternative signaling pathways. Signaling activates phospholipase C and a phosphatidylinositol-calcium second messenger system that modulates the activity of phosphatidylinositol 3-kinase and promotes the release of Ca(2+) ions from intracellular stores. Affects neural activity, perception, cognition and mood. Plays a role in the regulation of behavior, including responses to anxiogenic situations and psychoactive substances. Plays a role in intestinal smooth muscle contraction, and may play a role in arterial vasoconstriction (By similarity). |
Pathways
|
Not Available
|
Reactions
| Not Available |
GO Classification
|
Biological Process |
behavior |
Cellular Component |
dendrite |
caveola |
presynapse |
cytoplasmic vesicle |
axon |
integral to plasma membrane |
Molecular Function |
G protein-coupled serotonin receptor activity |
|
Cellular Location
|
Not Available
|
Gene Properties |
Chromosome Location
| Not Available |
Locus
| Not Available |
SNPs
| Not Available |
Gene Sequence
|
Not Available
|
Protein Properties |
Number of Residues
| Not Available |
Molecular Weight
| 52528.45 |
Theoretical pI
| Not Available |
Pfam Domain Function
|
|
Signals
|
Not Available
|
Transmembrane Regions
|
- 76-99;111-132;149-171;192-215;234-254;325-346;363-384;
|
Protein Sequence
|
Not Available
|
External Links |
GenBank ID Protein
| Not Available |
UniProtKB/Swiss-Prot ID
| Q5R4Q6 |
UniProtKB/Swiss-Prot Entry Name
| 5HT2A_PONPY |
PDB IDs
|
Not Available |
GenBank Gene ID
| Not Available |
GeneCard ID
| Not Available |
GenAtlas ID
| Not Available |
HGNC ID
| Not Available |
References |
General References
| - Kitano T, Liu YH, Ueda S, Saitou N: Human-specific amino acid changes found in 103 protein-coding genes. Mol Biol Evol. 2004 May;21(5):936-44. Epub 2004 Mar 10. [PubMed:15014171 ]
|