ERBB2
protein-codingerb-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]
- NGL
MANE transcript
Inheritance
ClinVar variants
Top phenotype
gnomAD constraint
Max pathogenic AF
Genomic locus
External References & Databases
Transcript & Mutation Effects
hg38 • Region Span ~42.5 kbGenCC Phenotypes & Disease Associations
Curated gene-disease validity assertions and inheritance patterns
Inheritance Pattern: Unknown
Disease ID:MONDO:0024498
Submitter: Labcorp Genetics (formerly Invitae)
Inheritance Pattern: AD
Disease ID:MONDO:0018309
Submitter: Orphanet
Inheritance Pattern: Unknown
Disease ID:MONDO:0030399
Submitter: Labcorp Genetics (formerly Invitae)
Inheritance Pattern: AD
Disease ID:MONDO:0008903
Submitter: Ambry Genetics
Clinical Genomic Database (CGD)
Manifestation: Audiologic/Otolaryngologic; Gastrointestinal; Neurologic
Intervention: Audiologic/Otolaryngologic
Rationale: Early recognition and treatment of hearing impairment may improve outcomes, including speech and language development
ClinVar Associated Diseases & Phenotypes
Reported disease conditions connected to ERBB2 variants in ClinVar
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.
| Effect | PathogenicP | Likely pathogenicLP | VUS | Likely benignLB | BenignB | Sum |
|---|---|---|---|---|---|---|
| synonymous | 10 | 201 | 14 | 225 | ||
| missense | 11 | 1 | 358 | 15 | 5 | 390 |
| nonsense | 1 | 11 | 12 | |||
| start loss | 0 | |||||
| frameshift | 2 | 1 | 7 | 10 | ||
| splice donor/acceptor (+/-2bp) | 1 | 11 | 12 | |||
| Total | 14 | 3 | 397 | 216 | 19 | 649 |
Highest pathogenic variant AF is 0.0000037173616
Transcript Catalog
Annotated transcript isoforms across RefSeq and Ensembl databases
| Transcript ID | Source | Protein ID | Coding Exons | MANE Status |
|---|---|---|---|---|
| RefSeq | NP_004439.2 | 27 | MANE Select | |
| Ensembl | ENSP00000269571.4 | 27 | MANE Select | |
| RefSeq | NP_001005862.1 | 26 | Standard | |
| RefSeq | NP_001276865.1 | 27 | Standard |
Model Organisms & Knockout Phenotypes
Observed phenotypic effects in mouse and zebrafish models
| Gene / Model | Organism | Observed Phenotype |
|---|---|---|
| erbb2 | Danio 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:
- 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-Score | Observed | Expected | Observed/Expected | Mutation Rate | Total Possible | |
|---|---|---|---|---|---|---|
| Missense | 3.25 | 510 | 763 | 0.669 | 0.0000474 | 8100 |
| Missense (PolyPhen) | 168 | 317.38 | 0.52933 | 3378 | ||
| Synonymous | 0.154 | 317 | 321 | 0.989 | 0.0000202 | 2592 |
| Loss of Function | 5.57 | 18 | 67.3 | 0.268 | 0.00000383 | 692 |
Population LoF Frequency
| Population | CAF | p-value | Status |
|---|---|---|---|
| African | 0.00031 | 0.00031 | rare |
| Latino/Admixed American | 0.000034 | 0.000029 | rare |
| Ashkenazi Jewish | 0 | 0.0 | absent |
| East Asian | 0.00022 | 0.00022 | rare |
| Finnish | 0 | 0.0 | absent |
| European (Non-Finnish) | 0.00017 | 0.00017 | rare |
| South Asian | 0.00010 | 0.000098 | rare |
| Other | 0.00035 | 0.00033 | rare |
dbNSFP Gene Annotations
Source:
- 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
| All | Recessive | Dominant | |
|---|---|---|---|
| Mendelian | High | High | High |
| Primary Immunodeficiency | High | High | High |
| Cancer | High | High | High |