Recombinant human ErbB2 / HER2 protein (Active) (ab60866)
Key features and details
- Expression system: Baculovirus infected Sf9 cells
- Purity: > 90% SDS-PAGE
- Active: Yes
- Tags: GST tag N-Terminus
- Suitable for: SDS-PAGE, Functional Studies
Description
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Product name
Recombinant human ErbB2 / HER2 protein (Active)
See all ErbB2 / HER2 proteins and peptides -
Biological activity
Specific Activity: 10 nmol/min/mg.
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Purity
> 90 % SDS-PAGE.
Purity: >90% as determined by densitometry. Affinity purified. -
Expression system
Baculovirus infected Sf9 cells -
Accession
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Protein length
Protein fragment -
Animal free
No -
Nature
Recombinant -
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Species
Human -
Predicted molecular weight
116 kDa -
Amino acids
676 to 1255 -
Tags
GST tag N-Terminus -
Additional sequence information
Recombinant fragment, corresponding to amino acids 676-end of Human ErbB2 / HER2.
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Associated products
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Substrate reagent
Specifications
Our Abpromise guarantee covers the use of ab60866 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
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Applications
SDS-PAGE
Functional Studies
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Form
Liquid -
Additional notes
ab204877 (Poly (4:1 Glu, Tyr) peptide) can be utilized as a substrate for assessing kinase activity
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Concentration information loading...
Preparation and Storage
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Stability and Storage
Shipped on dry ice. Upon delivery aliquot and store at -80ºC. Avoid freeze / thaw cycles.
pH: 7.50
Constituents: 0.0038% EGTA, 0.00174% PMSF, 0.00385% DTT, 0.79% Tris HCl, 0.00292% EDTA, 25% Glycerol (glycerin, glycerine), 0.87% Sodium chlorideThis product is an active protein and may elicit a biological response in vivo, handle with caution.
General Info
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Alternative names
- Verb b2 erythroblastic leukemia viral oncogene homolog 2, neuro/glioblastoma derived oncogene homolog
- C erb B2/neu protein
- CD340
see all -
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.
In the nucleus is involved in transcriptional regulation. Associates with the 5'-TCAAATTC-3' sequence in the PTGS2/COX-2 promoter and activates its transcription. Implicated in transcriptional activation of CDKN1A; the function involves STAT3 and SRC. Involved in the transcription of rRNA genes by RNA Pol I and enhances protein synthesis and cell growth. -
Tissue specificity
Expressed in a variety of tumor tissues including primary breast tumors and tumors from small bowel, esophagus, kidney and mouth. -
Involvement in disease
Hereditary diffuse gastric cancer
Glioma
Ovarian cancer
Lung cancer
Gastric cancer
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. -
Sequence similarities
Belongs to the protein kinase superfamily. Tyr protein kinase family. EGF receptor subfamily.
Contains 1 protein kinase domain. -
Post-translational
modificationsAutophosphorylated. Autophosphorylation occurs in trans, i.e. one subunit of the dimeric receptor phosphorylates tyrosine residues on the other subunit (Probable). Ligand-binding increases phosphorylation on tyrosine residues (PubMed:27134172). Signaling via SEMA4C promotes phosphorylation at Tyr-1248 (PubMed:17554007). Dephosphorylated by PTPN12 (PubMed:27134172). -
Cellular localization
Cytoplasm. Nucleus and Cell membrane. Cytoplasm, perinuclear region. Nucleus. Translocation to the nucleus requires endocytosis, probably endosomal sorting and is mediated by importin beta-1/KPNB1. - Information by UniProt
Images
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SDS-PAGE - Recombinant human ErbB2 / HER2 protein (Active) (ab60866)ab60866 on SDS-PAGE, MW ~116 kDa.
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Functional Studies - Recombinant human ErbB2 / HER2 protein (Active) (ab60866)The specific activity of ErbB 2 (ab60866) was determined to be 15 nmol/min/mg as per activity assay protocol -
SDS-PAGE - Recombinant human ErbB2 / HER2 protein (Active) (ab60866)SDS PAGE analysis of ab60866 -
Functional Studies - Recombinant human ErbB2 / HER2 protein (Active) (ab60866)Sample Kinase Activity Plot.
Protocols
To our knowledge, customised protocols are not required for this product. Please try the standard protocols listed below and let us know how you get on.
Datasheets and documents
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SDS download
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Datasheet download
References (2)
ab60866 has been referenced in 2 publications.
- Lobry M et al. HER2 biosensing through SPR-envelope tracking in plasmonic optical fiber gratings. Biomed Opt Express 11:4862-4871 (2020). PubMed: 33014586
- Lobry M et al. Multimodal plasmonic optical fiber grating aptasensor. Opt Express 28:7539-7551 (2020). PubMed: 32225979