ErbB2/Her2 Protein (AA 23-652) (His tag,Biotin)

Catalog No. ABIN2444140

Product Details

Target: ErbB2/Her2 (Receptor tyrosine-protein kinase erbB-2 (ErbB2/Her2))

Protein Type: Recombinant

Biological Activity: Active

Protein Characteristics: AA 23-652

Origin: Human

Source: HEK-293 Cells

Purification tag / Conjugate: This ErbB2/Her2 protein is labelled with His tag,Biotin.

Brand: MABSol®,UltraLys

Sequence: AA 23-652

Specificity: The primary amines in the side chains of lysine residues and the N-terminus of the protein are conjugated with biotins using standard chemical labeling method. A standard biotin reagent (13.5 angstroms) is used in this product.

Characteristics: This protein carries a polyhistidine tag at the C-terminus. The protein has a calculated MW of 70.2 kDa. The protein migrates as 110-115 kDa on a SDS-PAGE gel under reducing (R) condition due to glycosylation.

Purity: >95 % as determined by reduced SDS-PAGE.

Endotoxin Level: Less than 1.0 EU per μg by the LAL method.

Application Details

Comment:

A chemically labeled biotinylated protein with ultra sensitivity.
The product is produced using a chemical labeling approach. The primary amines in the side chains of lysine residues and the N-terminus of protein are conjugated with biotins.
Chemical labeling usually results in multiple biotin attachment on a single protein molecule, which could potentially lead to higher detection sensitivity.

Restrictions: For Research Use only

Handling

Format: Lyophilized

Buffer: PBS, pH 7.4

Handling Advice: Please avoid repeated freeze-thaw cycles.

Storage: -20 °C

Storage Comment: Lyophilized Protein should be stored at -20 °C or lower for long term storage. Upon reconstitution, working aliquots should be stored at -20 °C or -70 °C. Avoid repeated freeze-thaw cycles.

References

Mortensen, Skovsgaard, Okholm, Scavenius, Dupont, Rosen, Enghild, Kjems, Gothelf: "Small-Molecule Probes for Affinity-Guided Introduction of Biocompatible Handles on Metal-Binding Proteins." in: Bioconjugate chemistry, Vol. 29, Issue 9, pp. 3016-3025, (2019) (PubMed).

Vivier, Sharma, Adumeau, Rodriguez, Fung, Zeglis: "The Impact of FcγRI Binding on ImmunoPET." in: Journal of nuclear medicine : official publication, Society of Nuclear Medicine, (2019) (PubMed).

Target Details

Target: ErbB2/Her2 (Receptor tyrosine-protein kinase erbB-2 (ErbB2/Her2))

Alternative Name: Her2 (ErbB2/Her2 Products)

Background: Human Epidermal growth factor Receptor 2 (HER2) is also called ERBB2, HER-2,HER-2 /neu, NEU, NGL,TKR1 and c-erb B2,and is a protein giving higher aggressiveness in breast cancers. It is a member of the ErbB protein family, more commonly known as the epidermal growth factor receptor family. HER2 is a cell membrane surface-bound receptor tyrosine kinase and is normally involved in the signal transduction pathways leading to cell growth and differentiation. HER2 is thought to be an orphan receptor, with none of the EGF family of ligands able to activate it. Approximately 30 % of breast cancers have an amplification of the HER2 gene or overexpression of its protein product. Overexpression of this receptor in breast cancer is associated with increased disease recurrence and worse prognosis. HER2 appears to play roles in development, cancer, communication at the neuromuscular junction and regulation of cell growth and differentiation .

Molecular Weight: 70.2 kDa

NCBI Accession: NP_004439

Pathways: RTK Signaling, Fc-epsilon Receptor Signaling Pathway, EGFR Signaling Pathway, Neurotrophin Signaling Pathway, Skeletal Muscle Fiber Development