Hmdb loader
Identification
HMDB Protein ID HMDBP12616
Secondary Accession Numbers None
Name Apelin
Synonyms
  1. APJ endogenous ligand
Gene Name APLN
Protein Type Unknown
Biological Properties
General Function Not Available
Specific Function Endogenous ligand for the apelin receptor (APLNR) (PubMed:9792798). Drives internalization of APLNR (By similarity). Apelin-36 dissociates more hardly than (pyroglu)apelin-13 from APLNR (By similarity). Hormone involved in the regulation of cardiac precursor cell movements during gastrulation and heart morphogenesis (By similarity). Has an inhibitory effect on cytokine production in response to T-cell receptor/CD3 cross-linking; the oral intake of apelin in the colostrum and the milk might therefore modulate immune responses in neonates (By similarity). Plays a role in early coronary blood vessels formation (By similarity). Mediates myocardial contractility in an ERK1/2-dependent manner (By similarity). May also have a role in the central control of body fluid homeostasis by influencing vasopressin release and drinking behavior (By similarity).
Pathways
  • Apelin signaling pathway
  • Neuroactive ligand-receptor interaction
Reactions Not Available
GO Classification
Biological Process
angiogenesis
positive regulation of heart contraction
gastrulation
negative regulation of blood pressure
apelin receptor signaling pathway
coronary vasculature development
drinking behavior
positive regulation of G protein-coupled receptor internalization
Cellular Component
extracellular space
extracellular region
Molecular Function
apelin receptor binding
hormone 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 77
Molecular Weight 8743.27
Theoretical pI 11.388
Pfam Domain Function
Signals
  • 1-22;
Transmembrane Regions Not Available
Protein Sequence Not Available
GenBank ID Protein Not Available
UniProtKB/Swiss-Prot ID Q9TUI9
UniProtKB/Swiss-Prot Entry Name APEL_BOVIN
PDB IDs Not Available
GenBank Gene ID Not Available
GeneCard ID Not Available
GenAtlas ID Not Available
HGNC ID Not Available
References
General References
  1. Tatemoto K, Hosoya M, Habata Y, Fujii R, Kakegawa T, Zou MX, Kawamata Y, Fukusumi S, Hinuma S, Kitada C, Kurokawa T, Onda H, Fujino M: Isolation and characterization of a novel endogenous peptide ligand for the human APJ receptor. Biochem Biophys Res Commun. 1998 Oct 20;251(2):471-6. doi: 10.1006/bbrc.1998.9489. [PubMed:9792798 ]
  2. Habata Y, Fujii R, Hosoya M, Fukusumi S, Kawamata Y, Hinuma S, Kitada C, Nishizawa N, Murosaki S, Kurokawa T, Onda H, Tatemoto K, Fujino M: Apelin, the natural ligand of the orphan receptor APJ, is abundantly secreted in the colostrum. Biochim Biophys Acta. 1999 Oct 13;1452(1):25-35. doi: 10.1016/s0167-4889(99)00114-7. [PubMed:10525157 ]