For research use only.
| Verified Samples |
Verified Samples in WB: Jurkat, SW620, Mouse spleen Verified Samples in IF: U2OS |
| Dilution | WB 1:500-1:2000, IF 1:50-1:100 |
| Clonality | Polyclonal |
| Immunogen | Recombinant fusion protein of human U2AF2 (NP_001012496.1). |
| Synonyms | U2AF2, U2AF65 |
| Swissprot | |
| Calculated MW | 53 kDa |
| Observed MW |
54 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 | Nucleus. |
| Concentration | 1 mg/mL |
| Buffer | PBS with 0.02% sodium azide, 50% glycerol, pH7.3. |
| Purification Method | Affinity purification |
| Research Areas | Cancer, Epigenetics and Nuclear Signaling |
| 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 | U2 auxiliary factor (U2AF), comprised of a large and a small subunit, is a non-snRNP protein required for the binding of U2 snRNP to the pre-mRNA branch site. This gene encodes the U2AF large subunit which contains a sequence-specific RNA-binding region with 3 RNA recognition motifs and an Arg/Ser-rich domain necessary for splicing. The large subunit binds to the polypyrimidine tract of introns early during spliceosome assembly. Multiple transcript variants have been detected for this gene, but the full-length natures of only two have been determined to date. |
Other Clones
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