Seroatlas · Human Serome Atlas

OR5M3

Olfactory receptor 5M3

Also known as: OR5M3_HUMAN

Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene

Protein identityUniProt · HPA

UniProt accession
Q8NGP4
Gene
OR5M3
Ensembl
ENSG00000174937
Chromosome
11
Canonical length
307 aa
Protein class
G-protein coupled receptors, Predicted membrane proteins

OverviewNCBI Gene

Olfactory receptors interact with odorant molecules in the nose, to initiate a neuronal response that triggers the perception of a smell. The olfactory receptor proteins are members of a large family of G-protein-coupled receptors (GPCR) arising from single coding-exon genes. Olfactory receptors share a 7-transmembrane domain structure with many neurotransmitter and hormone receptors and are responsible for the recognition and G protein-mediated transduction of odorant signals. The olfactory receptor gene family is the largest in the genome. [provided by RefSeq, Jul 2008]

Canonical amino-acid sequenceUniProt

307 residues, UniProt reviewed canonical sequence.

>Q8NGP4|OR5M3
     1  MLNFTDVTEF ILLGLTSRRE WQVLFFIIFL VVYIITMVGN IGMMVLIKVS PQLNNPMYFF
    61  LSHLSFVDVW FSSNVTPKML ENLLSDKKTI TYAGCLVQCF FFIALVHVEI FILAAMAFDR
   121  YMAIGNPLLY GSKMSRVVCI RLITFPYIYG FLTSLAATLW TYGLYFCGKI EINHFYCADP
   181  PLIKMACAGT FVKEYTMIIL AGINFTYSLT VIIISYLFIL IAILRMRSAE GRQKAFSTCG
   241  SHLTAVIIFY GTLIFMYLRR PTEESVEQGK MVAVFYTTVI PMLNPMIYSL RNKDVKKAMM
   301  KVISRSC

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against OR5M3 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)
0.26
Highest tissue expression
0 nTPM

Expression across tissuesHPA

Tissue

  • adipose tissue: 0 nTPM
  • adrenal gland: 0 nTPM
  • amygdala: 0 nTPM
  • appendix: 0 nTPM
  • basal ganglia: 0 nTPM
  • blood vessel: 0 nTPM

Single-cell type

  • adipocytes: 0 nCPM
  • adrenal cortex cells: 0 nCPM
  • adrenal medulla cells: 0 nCPM
  • alveolar cells type 1: 0 nCPM
  • alveolar cells type 2: 0 nCPM
  • astrocytes: 0 nCPM

Immune cell

  • basophil: 0 nTPM
  • classical monocyte: 0 nTPM
  • eosinophil: 0 nTPM
  • gdT-cell: 0 nTPM
  • intermediate monocyte: 0 nTPM
  • MAIT T-cell: 0 nTPM

Brain region

  • amygdala: 0 nTPM
  • basal ganglia: 0 nTPM
  • cerebellum: 0 nTPM
  • cerebral cortex: 0 nTPM
  • choroid plexus: 0 nTPM
  • hippocampal formation: 0 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)
1.92
gnomAD pLI
0
gnomAD missense Z
-0.93
DepMap mean gene effect
-0.07
DepMap dependency class
none

Cancer expressionTCGA

Across TCGA tumor cohorts, this protein is over-expressed in roughly 1% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).

OntologyGO

Biological processes

Molecular functions

Cellular components

Protein domainsUniProt · Pfam · InterPro

KeywordsUniProt

Antibody and autoantibody relevanceSeroatlas analysis

Seroatlas reads OR5M3 as an antibody target. Whether an autoantibody or antibody against OR5M3 could matter depends on whether native OR5M3 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

OR5M3 is annotated at the cell surface, where native OR5M3 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 OR5M3 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/OR5M3. Study-independent annotations aggregated from UniProt, Human Protein Atlas, PubMed, IEDB, Pfam, InterPro, Gene Ontology, AlphaFold, gnomAD, DepMap, ClinVar, TCGA. Catalog release seroatlas-reviewed-human-uniprot-20260313.

Seroatlas is the reference for exploring autoantibody and antibody serology at the human-protein level: the autoreactome and human serome, multiplex serology (HuProt, HuScan, VirScan, PhIP-Seq).

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