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 PRAKQDSAPLLocalizationUniProt · 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
- animal organ development
- ERBB4 signaling pathway
- intracellular signal transduction
- nervous system development
- signal transduction
Molecular functions
Cellular components
Protein domainsUniProt · Pfam · InterPro
- EGF-like domain
- Neuregulin, C-terminal
- Immunoglobulin subtype 2
- Immunoglobulin domain subtype
- Immunoglobulin-like domain
- Immunoglobulin I-set
- Immunoglobulin-like fold
- Immunoglobulin-like domain superfamily
- Neuregulin
- Neuregulin intracellular region
- Immunoglobulin I-set domain
- Neuregulin 2, N-terminal domain
- Neuregulin 2, Ig-like domain
- NRG2 N-terminal
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.
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