GPR37 | |||||||||||||||||||||||||||||||||||||||||||||||||||
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Aliases | GPR37 , EDNRBL, PAELR, hET(B)R-LP, G protein-coupled receptor 37 | ||||||||||||||||||||||||||||||||||||||||||||||||||
External IDs | OMIM: 602583 MGI: 1313297 HomoloGene: 3875 GeneCards: GPR37 | ||||||||||||||||||||||||||||||||||||||||||||||||||
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Wikidata | |||||||||||||||||||||||||||||||||||||||||||||||||||
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Probable G-protein coupled receptor 37 is a protein that in humans is encoded by the GPR37 gene. [5] [6] [7] GPR37 is primarily found in the central nervous system (CNS), with significant expression observed in various CNS regions including the amygdala, basal ganglia (caudate, putamen, and nucleus accumbens), substantia nigra, hippocampus, frontal cortex, and hypothalamus, particularly noteworthy is its exceptionally elevated expression in the spinal cord. [8]
GPR37 has been shown to interact with HSPA1A [9] and Parkin (ligase). [9] [10] GPR37 is a receptor for prosaposin. It was previously thought to be a receptor for head activator, a neuropeptide found in the hydra, but early reports of head activator in mammals were never confirmed. [11] To address challenges in confirming ligand-GPR37 interactions using recombinant GPR37 expressed in HEK293 cells, recent research has turned to primary cell cultures, leading to successful ligand identification. [12] These investigations have unveiled the involvement of osteocalcin with GPR37 to regulate processes such as oligodendrocyte differentiation, myelination, myelin production, and remyelination following demyelinating injuries. [13] Furthermore, osteocalcin treatment has demonstrated protective effects against Lipopolysaccharide-induced inflammation, which are absent in GPR37-deficient mice. [14]
GPR37 signaling has been shown to modulate the migration of olfactory ensheathing cells (OECs) and gonadotropin-releasing hormone (GnRH) cells in mice. [15]
Parkin is a 465-amino acid residue E3 ubiquitin ligase, a protein that in humans and mice is encoded by the PARK2 gene. Parkin plays a critical role in ubiquitination – the process whereby molecules are covalently labelled with ubiquitin (Ub) and directed towards degradation in proteasomes or lysosomes. Ubiquitination involves the sequential action of three enzymes. First, an E1 ubiquitin-activating enzyme binds to inactive Ub in eukaryotic cells via a thioester bond and mobilises it in an ATP-dependent process. Ub is then transferred to an E2 ubiquitin-conjugating enzyme before being conjugated to the target protein via an E3 ubiquitin ligase. There exists a multitude of E3 ligases, which differ in structure and substrate specificity to allow selective targeting of proteins to intracellular degradation.
Ubiquitin-protein ligase E3A (UBE3A) also known as E6AP ubiquitin-protein ligase (E6AP) is an enzyme that in humans is encoded by the UBE3A gene. This enzyme is involved in targeting proteins for degradation within cells.
STUB1 is a human gene that codes for the protein CHIP.
Polyubiquitin-C is a protein encoded by the UBC gene in humans. Polyubiquitin-C is one of the sources of ubiquitin, along with UBB, UBA52, and RPS27A.
Autocrine motility factor receptor, isoform 2 is a protein that in humans is encoded by the AMFR gene.
Ubiquitin-conjugating enzyme E2 D2 is a protein that in humans is encoded by the UBE2D2 gene.
E3 ubiquitin-protein ligase synoviolin is an enzyme that in humans is encoded by the SYVN1 gene.
Nuclear factor erythroid 2-related factor 1 (Nrf1) also known as nuclear factor erythroid-2-like 1 (NFE2L1) is a protein that in humans is encoded by the NFE2L1 gene. Since NFE2L1 is referred to as Nrf1, it is often confused with nuclear respiratory factor 1 (Nrf1).
RING finger and CHY zinc finger domain-containing protein 1 is a protein that in humans is encoded by the RCHY1 gene.
E3 ubiquitin-protein ligase RNF5 is an enzyme that in humans is encoded by the RNF5 gene.
Parkin coregulated gene protein is a protein that in humans is encoded by the PACRG gene.
The human gene UBR1 encodes the enzyme ubiquitin-protein ligase E3 component n-recognin 1.
T-complex protein 1 subunit eta is a protein that in humans is encoded by the CCT7 gene.
T-complex protein 1 subunit delta is a protein that in humans is encoded by the CCT4 gene. The CCT4 protein is a component of the TRiC complex.
T-complex protein 1 subunit zeta is a protein that in humans is encoded by the CCT6A gene.
Translocon-associated protein subunit beta also known as TRAP-beta is a protein that in humans is encoded by the SSR2 gene.
Ubiquitin-conjugating enzyme E2 G1 is a protein that in humans is encoded by the UBE2G1 gene.
Protein OS-9 is a protein that in humans is encoded by the OS9 gene.
T-complex protein 1 subunit gamma is a protein that in humans is encoded by the CCT3 gene.
Receptor expression-enhancing protein 5 is a protein that in humans is encoded by the REEP5 gene. Receptor Expression Enhancing Protein is a protein encoded for in Humans by the REEP5 gene.