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ERBB2 (NM_004448) - erb-b2 receptor tyrosine kinase 2

Receptor Tyrosine-Protein Kinase Erbb-2 Isoform A Precursor

Mutations Visualisation

Protein summary

This is preferred isoform of ERBB2 protein. View all 5 isoforms
ERBB2: receptor tyrosine-protein kinase erbB-2 isoform a precursor
Description:

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].

Strand
+
Chromosome
17
Protein
1255 residues
All mutations
202
PTM sites
61
CDS
37,856,491 - 37,884,297
Transcription
37,856,230 - 37,884,915
28.53% of sequence is predicted to be disordered

External references

Mappings retrieved from NCBI & UniProt.
RefSeq
Entrez
gene: 2064
UniProt
Ensembl