Identification
HMDB Protein ID CDBP02118
Secondary Accession Numbers Not Available
Name G-protein coupled receptor 109A
Description Not Available
Synonyms
  1. G-protein coupled receptor HM74A
  2. Niacin receptor 1
  3. Nicotinic acid receptor
Gene Name GPR109A
Protein Type Enzyme
Biological Properties
General Function Involved in G-protein coupled receptor protein signaling pathway
Specific Function Acts as a high affinity receptor for both nicotinic acid (also known as niacin) and (D)-beta-hydroxybutyrate and mediates increased adiponectin secretion and decreased lipolysis through G(i)-protein-mediated inhibition of adenylyl cyclase. This pharmacological effect requires nicotinic acid doses that are much higher than those provided by a normal diet. Mediates nicotinic acid-induced apoptosis in mature neutrophils. Receptor activation by nicotinic acid results in reduced cAMP levels which may affect activity of cAMP-dependent protein kinase A and phosphorylation of target proteins, leading to neutrophil apoptosis. The rank order of potency for the displacement of nicotinic acid binding is 5- methyl pyrazole-3-carboxylic acid = pyridine-3-acetic acid > acifran > 5-methyl nicotinic acid = acipimox >> nicotinuric acid = nicotinamide
GO Classification
Component
cell part
membrane part
intrinsic to membrane
integral to membrane
Function
nucleotide receptor activity, g-protein coupled
purinergic nucleotide receptor activity, g-protein coupled
receptor activity
transmembrane receptor activity
molecular transducer activity
signal transducer activity
g-protein coupled receptor activity
Process
signaling
signaling pathway
cell surface receptor linked signaling pathway
g-protein coupled receptor protein signaling pathway
Cellular Location
  1. Cell membrane
  2. Multi-pass membrane protein
Pathways
Gene Properties
Chromosome Location Chromosome:1
Locus 12q24.31
SNPs GPR109A
Gene Sequence
>1092 bp
ATGAATCGGCACCATCTGCAGGATCACTTTCTGGAAATAGACAAGAAGAACTGCTGTGTG
TTCCGAGATGACTTCATTGTCAAGGTGTTGCCGCCGGTGTTGGGGCTGGAGTTTATCTTC
GGGCTTCTGGGCAATGGCCTTGCCCTGTGGATTTTCTGTTTCCACCTCAAGTCCTGGAAA
TCCAGCCGGATTTTCCTGTTCAACCTGGCAGTGGCTGACTTTCTACTGATCATCTGCCTG
CCCTTCCTGATGGACAACTATGTGAGGCGTTGGGACTGGAAGTTTGGGGACATCCCTTGC
CGGCTGATGCTCTTCATGTTGGCTATGAACCGCCAGGGCAGCATCATCTTCCTCACGGTG
GTGGCGGTAGACAGGTATTTCCGGGTGGTCCATCCCCACCACGCCCTGAACAAGATCTCC
AATCGGACAGCAGCCATCATCTCTTGCCTTCTGTGGGGCATCACTATTGGCCTGACAGTC
CACCTCCTGAAGAAGAAGATGCCGATCCAGAATGGCGGTGCAAATTTGTGCAGCAGCTTC
AGCATCTGCCATACCTTCCAGTGGCACGAAGCCATGTTCCTCCTGGAGTTCTTCCTGCCC
CTGGGCATCATCCTGTTCTGCTCAGCCAGAATTATCTGGAGCCTGCGGCAGAGACAAATG
GACCGGCATGCCAAGATCAAGAGAGCCATCACCTTCATCATGGTGGTGGCCATCGTCTTT
GTCATCTGCTTCCTTCCCAGCGTGGTTGTGCGGATCCGCATCTTCTGGCTCCTGCACACT
TCGGGCACGCAGAATTGTGAAGTGTACCGCTCGGTGGACCTGGCGTTCTTTATCACTCTC
AGCTTCACCTACATGAACAGCATGCTGGACCCCGTGGTGTACTATTTTTCCAGCCCATCC
TTTCCCAACTTCTTCTCCACTTTGATCAACCGCTGCCTCCAGAGGAAGATGACAGGTGAG
CCAGATAATAACCGCAGCACGAGCGTCGAGCTCACAGGGGACCCCAACAAAACCAGAGGC
GCTCCAGAGGCGTTAATGGCCAACTCCGGTGAGCCATGGAGCCCCTCTTATCTGGGCCCA
ACCTCTCCTTAA
Protein Properties
Number of Residues 363
Molecular Weight 41849.1
Theoretical pI 9.37
Pfam Domain Function
Signals
  • ["None"]
Transmembrane Regions
  • ["34-54", "64-84", "103-123", "143-163", "193-213", "230-250", "274-294"]
Protein Sequence
>G-protein coupled receptor 109A
MNRHHLQDHFLEIDKKNCCVFRDDFIVKVLPPVLGLEFIFGLLGNGLALWIFCFHLKSWK
SSRIFLFNLAVADFLLIICLPFLMDNYVRRWDWKFGDIPCRLMLFMLAMNRQGSIIFLTV
VAVDRYFRVVHPHHALNKISNRTAAIISCLLWGITIGLTVHLLKKKMPIQNGGANLCSSF
SICHTFQWHEAMFLLEFFLPLGIILFCSARIIWSLRQRQMDRHAKIKRAITFIMVVAIVF
VICFLPSVVVRIRIFWLLHTSGTQNCEVYRSVDLAFFITLSFTYMNSMLDPVVYYFSSPS
FPNFFSTLINRCLQRKMTGEPDNNRSTSVELTGDPNKTRGAPEALMANSGEPWSPSYLGP
TSP
GenBank ID Protein Not Available
UniProtKB/Swiss-Prot ID Q8TDS4
UniProtKB/Swiss-Prot Entry Name G109A_HUMAN
PDB IDs Not Available
GenBank Gene ID AY148884
GeneCard ID GPR109A
GenAtlas ID GPR109A
HGNC ID HGNC:24827
References
General References Not Available