ERBB2 Polyclonal Antibody (E-AB-70195)
For research use only.
| Verified Samples |
Verified Samples in WB: Hela, MCF-7 |
| Dilution | WB 1:500-1:2000 |
| Isotype | IgG |
| Host | Rabbit |
| Reactivity | Human |
| Applications | WB |
| Clonality | Polyclonal |
| Immunogen | KLH conjugated Synthetic peptide corresponding to Mouse ErbB2 |
| Abbre | ERBB2 |
| Synonyms | C erb B2/neu protein, CD340, CD340 antigen, Cerb B2/neu protein, CerbB2, ERBB2, Erb b2 receptor tyrosine kinase 2, HER 2, HER 2/NEU, HER2, Herstatin, Human epi, Verb b2 erythroblastic leukemia viral oncogene homolog 2, neuro/glioblastoma derived oncogene homolog |
| Swissprot | |
| Calculated MW | 138 kDa |
| Observed MW |
185 kDa
The actual band is not consistent with the expectation.
Western blotting is a method for detecting a certain protein in a complex sample based on the specific binding of antigen and antibody. Different proteins can be divided into bands based on different mobility rates. The mobility is affected by many factors, which may cause the observed band size to be inconsistent with the expected size. The common factors include: 1. Post-translational modifications: For example, modifications such as glycosylation, phosphorylation, methylation, and acetylation will increase the molecular weight of the protein. 2. Splicing variants: Different expression patterns of various mRNA splicing bodies may produce proteins of different sizes. 3. Post-translational cleavage: Many proteins are first synthesized into precursor proteins and then cleaved to form active forms, such as COL1A1. 4. Relative charge: the composition of amino acids (the proportion of charged amino acids and uncharged amino acids). 5. Formation of multimers: For example, in protein dimer, strong interactions between proteins can cause the bands to be larger. However, the use of reducing conditions can usually avoid the formation of multimers. If a protein in a sample has different modified forms at the same time, multiple bands may be detected on the membrane. |
| 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. |
| Concentration | 1.3 mg/mL |
| Buffer | Phosphate buffered solution, pH 7.4, containing 0.05% stabilizer, 1% protein protectant and 50% glycerol. |
| Purification Method | Affinity purification |
| Research Areas | Cancer, Immunology, Signal Transduction, Tags and Cell Markers |
| Conjugation | Unconjugated |
| Storage | Store at -20°C Valid for 12 months. Avoid freeze / thaw cycles. |
| Shipping | The product is shipped with ice pack,upon receipt,store it immediately at the temperature recommended. |
| background | HER2,also known as ErbB2 and Neu,is a 185-kDa transmembrane glycoprotein that is a member of the epidermal growth factor (EGF) receptor family of receptor tyrosine kinases. It 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. Amplification and/or overexpression of HER2 have been reported in numerous cancers,including breast and ovarian tumors. HER2 is a therapeutic target for the treatment of breast cancer and other carcinomas. |
Other Clones
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Other Formats
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Unconjugated
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