Seroatlas · Human Serome Atlas

REEP2

Receptor expression-enhancing protein 2

Also known as: C5orf19, REEP2_HUMAN, SGC32445, SPG72, Yip2d

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

Protein identityUniProt · HPA

UniProt accession
Q9BRK0
Gene
REEP2
Ensembl
ENSG00000132563
Chromosome
5
Canonical length
252 aa
Protein class
Disease related genes, Human disease related genes, Predicted membrane proteins
Subcellular location
Endoplasmic reticulum

OverviewNCBI Gene

This gene encodes a member of the receptor expression enhancing protein family. Studies of a related gene in mouse suggest that the encoded protein is found in the cell membrane and enhances the function of sweet taste receptors. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Nov 2012]

Canonical amino-acid sequenceUniProt

252 residues, UniProt reviewed canonical sequence.

>Q9BRK0|REEP2
     1  MVSWIISRLV VLIFGTLYPA YSSYKAVKTK NVKEYVKWMM YWIVFAFFTT AETLTDIVLS
    61  WFPFYFELKI AFVIWLLSPY TKGSSVLYRK FVHPTLSNKE KEIDEYITQA RDKSYETMMR
   121  VGKRGLNLAA NAAVTAAAKG VLSEKLRSFS MQDLTLIRDE DALPLQRPDG RLRPSPGSLL
   181  DTIEDLGDDP ALSLRSSTNP ADSRTEASED DMGDKAPKRA KPIKKAPKAE PLASKTLKTR
   241  PKKKTSGGGD SA

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against REEP2 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
2
Mean surface accessibility (rSASA)
0.56
Highest tissue expression
142 nTPM

Expression across tissuesHPA

Tissue

  • cerebral cortex: 142 nTPM
  • cerebellum: 136 nTPM
  • hypothalamus: 116 nTPM
  • hippocampal formation: 114 nTPM
  • amygdala: 105 nTPM
  • basal ganglia: 101 nTPM

Single-cell type

  • cone photoreceptor cells: 97 nCPM
  • other brain neurons: 86 nCPM
  • brain excitatory neurons: 76 nCPM
  • brain inhibitory neurons: 66 nCPM
  • rod photoreceptor cells: 61 nCPM
  • retinal ganglion cells: 46 nCPM

Immune cell

  • T-reg: 0.8 nTPM
  • memory CD8 T-cell: 0.2 nTPM
  • plasmacytoid DC: 0.2 nTPM
  • basophil: 0 nTPM
  • classical monocyte: 0 nTPM
  • eosinophil: 0 nTPM

Brain region

  • cerebral cortex: 250 nTPM
  • pons: 213 nTPM
  • thalamus: 202 nTPM
  • medulla oblongata: 185 nTPM
  • hypothalamus: 163 nTPM
  • midbrain: 162 nTPM

DiseaseUniProt · ClinVar · IEDB · PubMed

Four sources answering four different questions about REEP2.

Disease | AllUniProt

Conditions REEP2 is implicated in, by any mechanism.

Disease | GeneticClinVar

7 pathogenic / likely-pathogenic of 159 ClinVar records.

Conditions with pathogenic or likely-pathogenic variants.

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)
0.55
gnomAD pLI
0.44
gnomAD missense Z
1.64
DepMap mean gene effect
-0.19
DepMap dependency class
selective

Cancer expressionTCGA

Across TCGA tumor cohorts, this protein is over-expressed in roughly 4% 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

InteractionsUniProt · HPA

Protein binding partners of REEP2 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 REEP2 as an antibody target. Whether an autoantibody or antibody against REEP2 could matter depends on whether native REEP2 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

REEP2 is annotated at the cell surface, where native REEP2 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 REEP2 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/REEP2. 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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