ADIPOR2
Adiponectin receptor protein 2
Also known as: ACDCR2, PAQR2, PAQR2_HUMAN
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- Q86V24
- Gene
- ADIPOR2
- Ensembl
- ENSG00000006831
- Chromosome
- 12
- Canonical length
- 386 aa
- Protein class
- Predicted membrane proteins, Transporters
- Quaternary structure
- Homooligomer
OverviewNCBI Gene
The adiponectin receptors, ADIPOR1 (MIM 607945) and ADIPOR2, serve as receptors for globular and full-length adiponectin (MIM 605441) and mediate increased AMPK (see MIM 602739) and PPAR-alpha (PPARA; MIM 170998) ligand activities, as well as fatty acid oxidation and glucose uptake by adiponectin (Yamauchi et al., 2003 [PubMed 12802337]).[supplied by OMIM, Mar 2008]
Canonical amino-acid sequenceUniProt
386 residues, UniProt reviewed canonical sequence.
>Q86V24|ADIPOR2
1 MNEPTENRLG CSRTPEPDIR LRKGHQLDGT RRGDNDSHQG DLEPILEASV LSSHHKKSSE
61 EHEYSDEAPQ EDEGFMGMSP LLQAHHAMEK MEEFVCKVWE GRWRVIPHDV LPDWLKDNDF
121 LLHGHRPPMP SFRACFKSIF RIHTETGNIW THLLGCVFFL CLGIFYMFRP NISFVAPLQE
181 KVVFGLFFLG AILCLSFSWL FHTVYCHSEG VSRLFSKLDY SGIALLIMGS FVPWLYYSFY
241 CNPQPCFIYL IVICVLGIAA IIVSQWDMFA TPQYRGVRAG VFLGLGLSGI IPTLHYVISE
301 GFLKAATIGQ IGWLMLMASL YITGAALYAA RIPERFFPGK CDIWFHSHQL FHIFVVAGAF
361 VHFHGVSNLQ EFRFMIGGGC SEEDALLocalizationUniProt · AlphaFold · HPA
Whether an antibody against ADIPOR2 can act on the native protein depends on physical access: surface and secreted proteins are reachable by circulating antibodies, intracellular proteins usually are not.
- Antibody reachability
- Cell surface
- Secreted
- No
- Transmembrane segments
- 7
- Mean surface accessibility (rSASA)
- 0.36
- Highest tissue expression
- 121 nTPM
Expression across tissuesHPA
Tissue
- spinal cord: 121 nTPM
- liver: 78 nTPM
- midbrain: 76 nTPM
- adrenal gland: 70 nTPM
- hippocampal formation: 58 nTPM
- adipose tissue: 53 nTPM
Single-cell type
- oligodendrocytes: 457 nCPM
- renal collecting duct intercalated cells: 267 nCPM
- bergmann glia: 142 nCPM
- microglia: 122 nCPM
- choroid plexus epithelial cells: 101 nCPM
- renal connecting tubule cells: 89 nCPM
Immune cell
- eosinophil: 1.8 nTPM
- gdT-cell: 0.9 nTPM
- neutrophil: 0.9 nTPM
- plasmacytoid DC: 0.9 nTPM
- memory CD8 T-cell: 0.8 nTPM
- basophil: 0.7 nTPM
Brain region
- white matter: 93 nTPM
- medulla oblongata: 64 nTPM
- basal ganglia: 60 nTPM
- midbrain: 55 nTPM
- cerebellum: 55 nTPM
- pons: 54 nTPM
Genetic constraint and essentialitygnomAD · DepMap
Does the body need this protein intact? Low LOEUF or a strong DepMap dependency means loss or blockade of the protein is likely to be felt.
- gnomAD LOEUF (loss-of-function intolerance)
- 0.52
- gnomAD pLI
- 0.36
- gnomAD missense Z
- 2.65
- DepMap mean gene effect
- 0.02
- DepMap dependency class
- selective
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 9% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- adiponectin-activated signaling pathway
- fatty acid oxidation
- glucose homeostasis
- hormone-mediated signaling pathway
- positive regulation of cold-induced thermogenesis
- vascular wound healing
Molecular functions
- adipokinetic hormone receptor activity
- adiponectin binding
- identical protein binding
- metal ion binding
- signaling receptor activity
Cellular components
Protein domainsUniProt · Pfam · InterPro
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of ADIPOR2 in the human serome: UniProt-annotated complex subunits plus reported interactors. Each links to its own Seroatlas record.
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads ADIPOR2 as an antibody target. Whether an autoantibody or antibody against ADIPOR2 could matter depends on whether native ADIPOR2 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
ADIPOR2 is annotated at the cell surface, where native ADIPOR2 is exposed to circulating antibodies and is a prime autoantibody target that could block, deplete, or overstimulate it.
Annotation status
The present source text does not explicitly label ADIPOR2 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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