Strep-Tag II Monoclonal Antibody (E-AB-48009)
For research use only.
| Verified Samples |
Verified Samples in WB: Strep Ⅱ-Tag fused recombinant protein |
| Dilution | WB 1:1000-2000 |
| Isotype | IgG1 |
| Host | Mouse |
| Reactivity | All |
| Applications | WB |
| Clonality | Monoclonal |
| Immunogen | Synthetic peptide corresponding to Strep II tag conjugated to keyhole limpet haemocyanin. |
| Abbre | Strep-Tag II |
| Synonyms | Strep II, Strep Tag II |
| Calculated MW | 45 kDa |
| Observed MW |
45 kDa
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. |
| Concentration | 1 mg/mL |
| Buffer | PBS with 0.05% proclin 300, 1% protective protein and 50% glycerol,pH7.4 |
| Purification Method | Protein A/G Purification |
| Clone No. | 4H10 |
| 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 | The Strep-tag II is a synthetic peptide consisting of eight amino acids ( WSHPQFEK ). This peptide sequence exhibits intrinsic affinity towards Strep-Tactin, a specifically engineered streptavidin and can be N- or C- terminally fused to recombinant protein. The Strep-tag II peptide was developed as an affinity tool for the purification of corresponding fusion proteins on streptavidin columns. The peptide recognizes the same pocket of streptavidin where the natural ligand is normally bound so that biotin or its chemical derivatives can be used for competitive elution. |
Other Clones
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Unconjugated
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