Recombinant ErbB3/HER3 Monoclonal Antibody (AN301827L)
For research use only.
| Verified Samples | Verified Samples in WB: MDA-MB-231(Negative control), MCF-7, T47D, C6 |
| Dilution | WB 1:500-1:2000 |
| Isotype | IgG, κ |
| Host | Rabbit |
| Reactivity | Human, Rat, |
| Applications | WB |
| Clonality | Monoclonal;Recombinant |
| Immunogen | Recombinant human ErbB3 / HER3 fragment |
| Abbre | ErbB3/HER3 |
| Synonyms | HER, LCCS, Proto-oncogene-like protein c-ErbB, Tyrosine kinase-type cell surface receptor HER, MDA-BF, p180-ErbB, p45-sErbB, p85-sErbB, ERBB3, ErbB-3, HER3, LCCS2, MDA-BF-1, c-erbB-3, c-erbB3, erbB3-S, p180-ErbB3, p45-sErbB3, p85-sErbB3, Proto-oncogene-like protein c-ErbB-3, Tyrosine kinase-type cell surface receptor HER3, EEBB3 |
| Swissprot | |
| Calculated MW | 148 / 77 kDa |
| Observed MW |
185 / 98 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 | Membrane, Secreted |
| Concentration | 1 mg/mL |
| Buffer | PBS, 50% glycerol, 0.05% Proclin 300, 0.05% protein protectant. |
| Purification Method | Protein A purified |
| Research Areas | Signal Transduction, Cancer |
| Clone No. | A539 |
| Conjugation | Unconjugated |
| Storage | Store at -20°C Valid for 12 months. Avoid freeze / thaw cycles. |
| Shipping | Ice bag |
| background | HER3/ErbB3 is a member of the ErbB receptor protein tyrosine kinase family, but it lacks tyrosine kinase activity. Tyrosine phosphorylation of ErbB3 depends on its association with other ErbB tyrosine kinases. Upon ligand binding, heterodimers form between ErbB3 and other ErbB proteins, and ErbB3 is phosphorylated on tyrosine residues by the activated ErbB kinase. There are at least 9 potential tyrosine phosphorylation sites in the carboxy-terminal tail of ErbB3. These sites serve as consensus binding sites for signal transducing proteins, including Src family members, Grb2, and the p85 subunit of PI3 kinase, which mediate ErbB downstream signaling. Both Tyr1222 and Tyr1289 of ErbB3 reside within a YXXM motif and participate in signaling to PI3K. |
Other Clones
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Unconjugated
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