ERBB2

protein-coding

erb-b2 receptor tyrosine kinase 2, the group of CD molecules|Minor histocompatibility antigens|Erb-b2 receptor tyrosine kinases|MicroRNA protein coding host genes

Gene summary

This gene encodes a member of the epidermal growth factor (EGF) receptor family of receptor tyrosine kinases. This protein has no ligand binding domain of its own and therefore cannot bind growth factors. However, it does bind tightly to other ligand-bound EGF receptor family members to form a heterodimer, stabilizing ligand binding and enhancing kinase-mediated activation of downstream signalling pathways, such as those involving mitogen-activated protein kinase and phosphatidylinositol-3 kinase. Allelic variations at amino acid positions 654 and 655 of isoform a (positions 624 and 625 of isoform b) have been reported, with the most common allele, Ile654/Ile655, shown here. Amplification and/or overexpression of this gene has been reported in numerous cancers, including breast and ovarian tumors. Alternative splicing results in several additional transcript variants, some encoding different isoforms and others that have not been fully characterized. [provided by RefSeq, Jul 2008]

Previous symbols:
  • NGL

MANE transcript

NM_004448.4

Inheritance

AD, AR

ClinVar variants

P:17U:397B:235

Top phenotype

Visceral neuropathy, familial, 2, autosomal recessive

gnomAD constraint

pLI —, LoF o/e 0.27

Max pathogenic AF

—

Genomic locus

chr17:39,687,914-39,730,426

External References & Databases

Transcript & Mutation Effects

hg38 • Region Span ~42.5 kb
Loading mutation effect viewer...

GenCC Phenotypes & Disease Associations

Curated gene-disease validity assertions and inheritance patterns

glioma susceptibility 1LIMITED

Inheritance Pattern: Unknown

Disease ID:MONDO:0024498

Submitter: Labcorp Genetics (formerly Invitae)

Hirschsprung diseaseSUPPORTIVE

Inheritance Pattern: AD

Disease ID:MONDO:0018309

Submitter: Orphanet

visceral neuropathy, familial, 2, autosomal recessiveLIMITED

Inheritance Pattern: Unknown

Disease ID:MONDO:0030399

Submitter: Labcorp Genetics (formerly Invitae)

lung cancerLIMITED

Inheritance Pattern: AD

Disease ID:MONDO:0008903

Submitter: Ambry Genetics

Clinical Genomic Database (CGD)

Visceral neuropathy, familial, 2, autosomal recessiveAR

Manifestation: Audiologic/Otolaryngologic; Gastrointestinal; Neurologic

Intervention: Audiologic/Otolaryngologic

Rationale: Early recognition and treatment of hearing impairment may improve outcomes, including speech and language development

Refs: 33497358Source: CGD (NHGRI)

ClinVar Associated Diseases & Phenotypes

Reported disease conditions connected to ERBB2 variants in ClinVar

19 Conditions Cataloged
not providedTotal: 704
not specifiedTotal: 100
Visceral neuropathy, familial, 2, autosomal recessiveTotal: 44
Gastric cancerTotal: 38
Glioma susceptibility 1Total: 38
Lung cancerTotal: 38
Ovarian cancerTotal: 37
Non-small cell lung carcinomaTotal: 10

ClinVar Variants & Pathogenicity by Type

Statistics based on transcript NM_004448.4. Only rare variants are included.

We include only reliable ClinVar variants with their consequences to MANE Select, MANE Plus Clinical transcripts, or transcripts with TSL equal to 1. Click a count to filter the variants table below.

Slight differences between displayed counts and ClinVar may occur due to a different transcript/consequence chosen by our variant effect predictor, or because we classify Benign/Likely benign as Likely benign and Pathogenic/Likely pathogenic as Likely pathogenic.

EffectPLPVUSLBBSum
synonymous
10
clinvar
201
clinvar
14
clinvar
225
missense
11
clinvar
1
clinvar
358
clinvar
15
clinvar
5
clinvar
390
nonsense
1
clinvar
11
clinvar
12
start loss
0
frameshift
2
clinvar
1
clinvar
7
clinvar
10
splice donor/acceptor (+/-2bp)
1
clinvar
11
clinvar
12
Total14339721619649

Highest pathogenic variant AF is 0.0000037173616

Loading ClinVar variants...

Transcript Catalog

Annotated transcript isoforms across RefSeq and Ensembl databases

Showing 4 of 94 transcripts
Transcript IDSourceProtein IDCoding ExonsMANE Status
NM_004448.4RefSeqNP_004439.227MANE Select
ENST00000269571.10EnsemblENSP00000269571.427MANE Select
NM_001005862.3RefSeqNP_001005862.126Standard
NM_001289936.2RefSeqNP_001276865.127Standard

Model Organisms & Knockout Phenotypes

Observed phenotypic effects in mouse and zebrafish models

Gene / ModelOrganismObserved Phenotype
erbb2Danio rerio

Structure: cardiac muscle cell

Quality: decreased amount

abnormal

Gene Ontology (GO) Annotations & Pathways

Biological processes, molecular functions, cellular components and pathways

Pathways ConsensusPathDB

  • PI3K-Akt signaling pathway - Homo sapiens (human)
  • Non-small cell lung cancer - Homo sapiens (human)
  • Gastric cancer - Homo sapiens (human)
  • Focal adhesion - Homo sapiens (human)
  • Central carbon metabolism in cancer - Homo sapiens (human)

Biological Process

  • MAPK cascade
  • positive regulation of protein phosphorylation
  • regulation of transcription by RNA polymerase II
  • protein phosphorylation
  • signal transduction

Molecular Function

  • RNA polymerase I core binding
  • protein tyrosine kinase activity
  • transmembrane receptor protein tyrosine kinase activity
  • transmembrane signaling receptor activity
  • Ras guanyl-nucleotide exchange factor activity

Cellular Component

  • nucleus
  • cytosol
  • plasma membrane
  • integral component of plasma membrane
  • basal plasma membrane

gnomAD Constraint

Source: gnomAD

Gene type
protein_coding
Transcript type
protein_coding
Transcript
ENST00000269571
Coding exons
27
Length
42513
Individuals with no LoFs
125714
Homozygous LoFs
0
Heterozygous LoFs
34
Defined
125748
p
0.000135
Z-ScoreObservedExpectedObserved/ExpectedMutation RateTotal Possible
Missense3.255107630.6690.00004748100
Missense (PolyPhen)168317.380.529333378
Synonymous0.1543173210.9890.00002022592
Loss of Function5.571867.30.2680.00000383692

Population LoF Frequency

PopulationCAFp-valueStatus
African0.000310.00031rare
Latino/Admixed American0.0000340.000029rare
Ashkenazi Jewish00.0absent
East Asian0.000220.00022rare
Finnish00.0absent
European (Non-Finnish)0.000170.00017rare
South Asian0.000100.000098rare
Other0.000350.00033rare

dbNSFP Gene Annotations

Source: dbNSFP

Function
FUNCTION: Protein tyrosine kinase that is part of several cell surface receptor complexes, but that apparently needs a coreceptor for ligand binding. Essential component of a neuregulin-receptor complex, although neuregulins do not interact with it alone. GP30 is a potential ligand for this receptor. Regulates outgrowth and stabilization of peripheral microtubules (MTs). Upon ERBB2 activation, the MEMO1-RHOA-DIAPH1 signaling pathway elicits the phosphorylation and thus the inhibition of GSK3B at cell membrane. This prevents the phosphorylation of APC and CLASP2, allowing its association with the cell membrane. In turn, membrane-bound APC allows the localization of MACF1 to the cell membrane, which is required for microtubule capture and stabilization. {ECO:0000305}.;
Disease
DISEASE: Glioma (GLM) [MIM:137800]: Gliomas are benign or malignant central nervous system neoplasms derived from glial cells. They comprise astrocytomas and glioblastoma multiforme that are derived from astrocytes, oligodendrogliomas derived from oligodendrocytes and ependymomas derived from ependymocytes. {ECO:0000269|PubMed:15457249}. Note=The gene represented in this entry is involved in disease pathogenesis.; DISEASE: Ovarian cancer (OC) [MIM:167000]: The term ovarian cancer defines malignancies originating from ovarian tissue. Although many histologic types of ovarian tumors have been described, epithelial ovarian carcinoma is the most common form. Ovarian cancers are often asymptomatic and the recognized signs and symptoms, even of late-stage disease, are vague. Consequently, most patients are diagnosed with advanced disease. {ECO:0000269|PubMed:15457249, ECO:0000269|PubMed:17344846}. Note=The gene represented in this entry is involved in disease pathogenesis.; DISEASE: Lung cancer (LNCR) [MIM:211980]: A common malignancy affecting tissues of the lung. The most common form of lung cancer is non-small cell lung cancer (NSCLC) that can be divided into 3 major histologic subtypes: squamous cell carcinoma, adenocarcinoma, and large cell lung cancer. NSCLC is often diagnosed at an advanced stage and has a poor prognosis. {ECO:0000269|PubMed:15457249}. Note=The gene represented in this entry is involved in disease pathogenesis.; DISEASE: Gastric cancer (GASC) [MIM:613659]: A malignant disease which starts in the stomach, can spread to the esophagus or the small intestine, and can extend through the stomach wall to nearby lymph nodes and organs. It also can metastasize to other parts of the body. The term gastric cancer or gastric carcinoma refers to adenocarcinoma of the stomach that accounts for most of all gastric malignant tumors. Two main histologic types are recognized, diffuse type and intestinal type carcinomas. Diffuse tumors are poorly differentiated infiltrating lesions, resulting in thickening of the stomach. In contrast, intestinal tumors are usually exophytic, often ulcerating, and associated with intestinal metaplasia of the stomach, most often observed in sporadic disease. {ECO:0000269|PubMed:15457249, ECO:0000269|PubMed:17344846}. Note=The protein represented in this entry is involved in disease pathogenesis.; DISEASE: Note=Chromosomal aberrations involving ERBB2 may be a cause gastric cancer. Deletions within 17q12 region producing fusion transcripts with CDK12, leading to CDK12-ERBB2 fusion leading to truncated CDK12 protein not in-frame with ERBB2. {ECO:0000269|PubMed:21097718}.;

Recessive Scores

pRec
0.894

Intolerance Scores

LoFtool
0.149
RVIS EVS
-0.59
RVIS percentile EVS
18.28

Essentials

Essential (CRISPR)
N
Essential (CRISPR2)
N
Essential (gene trap)
N
Indispensability pred.
E
Indispensability score
0.974

Gene Damage Prediction

AllRecessiveDominant
MendelianHighHighHigh
Primary ImmunodeficiencyHighHighHigh
CancerHighHighHigh
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