Seroatlas · Human Serome Atlas

NRG2

Pro-neuregulin-2, membrane-bound isoform

Also known as: Don-1, HRG2, NRG2_HUMAN, NTAK

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

Protein identityUniProt · HPA

UniProt accession
O14511
Gene
NRG2
Ensembl
ENSG00000158458
Chromosome
5
Canonical length
850 aa
Protein class
Cancer-related genes, Predicted membrane proteins, Predicted secreted proteins
Subcellular location
Nucleoplasm,Nucleoli
Secretome location
Secreted in other tissues

OverviewNCBI Gene

This gene encodes a novel member of the neuregulin family of growth and differentiation factors. Through interaction with the ERBB family of receptors, this protein induces the growth and differentiation of epithelial, neuronal, glial, and other types of cells. The gene consists of 12 exons and the genomic structure is similar to that of neuregulin 1, another member of the neuregulin family of ligands. The products of these genes mediate distinct biological processes by acting at different sites in tissues and eliciting different biological responses in cells. This gene is located close to the region for demyelinating Charcot-Marie-Tooth disease locus, but is not responsible for this disease. Alternative transcript variants encoding distinct isoforms have been described. [provided by RefSeq, May 2010]

Canonical amino-acid sequenceUniProt

850 residues, UniProt reviewed canonical sequence.

>O14511|NRG2
     1  MRQVCCSALP PPPLEKGRCS SYSDSSSSSS ERSSSSSSSS SESGSSSRSS SNNSSISRPA
    61  APPEPRPQQQ PQPRSPAARR AAARSRAAAA GGMRRDPAPG FSMLLFGVSL ACYSPSLKSV
   121  QDQAYKAPVV VEGKVQGLVP AGGSSSNSTR EPPASGRVAL VKVLDKWPLR SGGLQREQVI
   181  SVGSCVPLER NQRYIFFLEP TEQPLVFKTA FAPLDTNGKN LKKEVGKILC TDCATRPKLK
   241  KMKSQTGQVG EKQSLKCEAA AGNPQPSYRW FKDGKELNRS RDIRIKYGNG RKNSRLQFNK
   301  VKVEDAGEYV CEAENILGKD TVRGRLYVNS VSTTLSSWSG HARKCNETAK SYCVNGGVCY
   361  YIEGINQLSC KCPNGFFGQR CLEKLPLRLY MPDPKQKAEE LYQKRVLTIT GICVALLVVG
   421  IVCVVAYCKT KKQRKQMHNH LRQNMCPAHQ NRSLANGPSH PRLDPEEIQM ADYISKNVPA
   481  TDHVIRRETE TTFSGSHSCS PSHHCSTATP TSSHRHESHT WSLERSESLT SDSQSGIMLS
   541  SVGTSKCNSP ACVEARARRA AAYNLEERRR ATAPPYHDSV DSLRDSPHSE RYVSALTTPA
   601  RLSPVDFHYS LATQVPTFEI TSPNSAHAVS LPPAAPISYR LAEQQPLLRH PAPPGPGPGP
   661  GPGPGPGADM QRSYDSYYYP AAGPGPRRGT CALGGSLGSL PASPFRIPED DEYETTQECA
   721  PPPPPRPRAR GASRRTSAGP RRWRRSRLNG LAAQRARAAR DSLSLSSGSG GGSASASDDD
   781  ADDADGALAA ESTPFLGLRG AHDALRSDSP PLCPAADSRT YYSLDSHSTR ASSRHSRGPP
   841  PRAKQDSAPL

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against NRG2 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
1
Mean surface accessibility (rSASA)
0.59
Highest tissue expression
12 nTPM

Expression across tissuesHPA

Tissue

  • cerebellum: 12 nTPM
  • parathyroid gland: 7.6 nTPM
  • salivary gland: 6.2 nTPM
  • ovary: 6 nTPM
  • cervix: 5.5 nTPM
  • skeletal muscle: 4.7 nTPM

Single-cell type

  • brain inhibitory neurons: 209 nCPM
  • oligodendrocyte progenitor cells: 202 nCPM
  • retinal amacrine cells: 192 nCPM
  • thyrotrophs: 187 nCPM
  • brain excitatory neurons: 177 nCPM
  • ependymal cells: 162 nCPM

Immune cell

  • gdT-cell: 0.3 nTPM
  • naive CD8 T-cell: 0.1 nTPM
  • basophil: 0 nTPM
  • classical monocyte: 0 nTPM
  • eosinophil: 0 nTPM
  • intermediate monocyte: 0 nTPM

Brain region

  • cerebellum: 22 nTPM
  • pons: 11 nTPM
  • cerebral cortex: 10 nTPM
  • basal ganglia: 9.9 nTPM
  • midbrain: 9.7 nTPM
  • thalamus: 9.4 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)
0.21
gnomAD pLI
1
gnomAD missense Z
2.27
DepMap mean gene effect
-0.11
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 NRG2 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 NRG2 as an antibody target. Whether an autoantibody or antibody against NRG2 could matter depends on whether native NRG2 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

NRG2 is annotated at the cell surface, where native NRG2 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 NRG2 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/NRG2. 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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