TBP (TATA sequence-binding protein, TATA-binding factor, TATA-box factor, Transcription initiation factor TFIID TBP subunit)

TBP, TATA-binding protein, is a general transcription factor that binds specifically to a DNA sequence called the TATA box. The TBP gene is mapped to 6q27. This DNA sequence is found about 35 base pairs upstream of the transcription start site in some eukaryotic gene promoters.[1] 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.[2] As one of the few proteins in the preinitiation 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.\n\nUniProt Number:\nP20226\n\nGene ID:\nTBP\n\nApplications:\nSuitable for use in Western Blot.\n\nRecommended Dilution:\nOptimal dilutions to be determined by the researcher.\n\nStorage and Handling:\nStore at -20?C for one year. After reconstitution, store at 4?C for one month. Can also be aliquoted and stored frozen at -20?C for long term.\nAvoid repeated freezing and thawing. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.

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SPECIFICATIONS

Catalog Number

145251

Size

100ug

Applications

WB

Hosts

Rabbit

Reactivities

Hum, Mouse, Rat

Form

Supplied as a lyophilized powder. Each vial contains 5mg BSA, 0.9mg NaCl, 0.2mg Na2HPO4, 0.05mg Thimerosal, 0.05mg NaN3. Reconstitution: Add 0.2ml of distilled water will yield a concentration of 500ug/ml.

P Type

Pab

Purity

Purified by immunoaffinity chromatography.

Isotype

IgG

References

1. Bauer, P., Laccone, F., Rolfs, A., Wullner, U., Bosch, S., Peters, H., Liebscher, S., Scheible, M., Epplen, J. T., Weber, B. H. F., Holinski-Feder, E., Weirich-Schwaiger, H., Morris-Rosendahl, D. J., Andrich, J., Riess, O.Trinucleotide repeat expansion in SCA17/TBP in white patients with Huntington's disease-like phenotype.J. Med. Genet. 41: 230-232, 2004.\n2. Stevanin, G., Fujigasaki, H., Lebre, A.-S., Camuzat, A., Jeannequin, C., Dode, C., Takahashi, J., San, C., Bellance, R., Brice, A., Durr, A.Huntington's disease-like phenotype due to trinucleotide repeat expansions in the TBP and JPH3 genes.Brain 126: 1599-1603, 2003.\n3. Veenstra, G. J. C., Weeks, D. L., Wolffe, A. P.Distinct roles for TBP and TBP-like factor in early embryonic gene transcription in Xenopus.Science 290: 2312-2314, 2000.\n

Additional Info

Recognizes human, mouse and rat TBP. No crossreactivity with other proteins.