TBP Polyclonal Antibody (E-AB-18293)

For research use only.
Verified Samples |
Verified Samples in WB: 231, Human testis, Hela, HepG2 |
Dilution | WB 1:500-1:2000 |
Isotype | IgG |
Host | Rabbit |
Reactivity | Human |
Applications | WB |
Clonality | Polyclonal |
Immunogen | Full length fusion protein |
Abbre | TBP |
Synonyms | GTF2D, GTF2D1, HDL4, SCA17, TATA binding factor, TATA box binding protein, TATA box factor, TATA sequence binding protein, TATA sequence-binding protein, TATA-binding factor, TATA-box factor, TATA-box-binding protein, TBP, TFIID, Transcription initiation factor TFI |
Swissprot | |
Calculated MW | 38 kDa |
Observed MW |
Refer to figures
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 | 0.8 mg/mL |
Buffer | Phosphate buffered solution, pH 7.4, containing 0.05% stabilizer and 50% glycerol. |
Purification Method | Antigen 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 | The TATA binding protein (TBP) is a transcription factor that binds specifically to a DNA sequence TATA box. This DNA sequence is found about 25-30 base pairs upstream of the transcription start site in some eukaryotic gene promoters. TBP,along with a variety of TBP-associated factors,make up the TFIID,a general transcription factor that in turn makes up part of the RNA polymerase II preinitiation complex. As one of the few proteins in the preinitation complex that binds DNA in a sequence-specific manner,it helps position RNA polymerase II over the transcription start site of the gene. However,it is estimated that only 10-20% of human promoters have TATA boxes. Therefore,TBP is probably not the only protein involved in positioning RNA polymerase II. This antibody detects human TBP (~40 kDa) and mouse/rat Tbp (~35 kDa). |
Other Clones
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Other Formats
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Unconjugated
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