[Prognosis of affinity change of the TATA-binding protein to TATA-boxes upon polymorphisms of the human gene promoter TATA boxes].

sliding <--> braking (stopping) <--> stabilization. Our prognoses agree with known examples of TATA-box polymorphisms and human hereditary diseases associated with them. -->
Substance Nomenclature: 0 (TATA-Box Binding Protein)
Entry Date(s): Date Created: 20090625 Date Completed: 20090804 Latest Revision: 20090624
Update Code: 20240829
PMID: 19548537
Autor: Ponomarenko PM, Ponomarenko MP, Drachkova IA, Lysova MV, Arshinova TV, Savinkova LK, Kolchanov NA
Jazyk: ruština
Zdroj: Molekuliarnaia biologiia [Mol Biol (Mosk)] 2009 May-Jun; Vol. 43 (3), pp. 512-20.
Abstrakt: TATA-binding protein (TBP) is a subunit of basal transcription factor TFIID that recognizes and binds to the TATA-box on TATA-containing promoters of class II genes, and starts assembling RNA polymerase II basal transcription complex. It is shown in many works that the sequence of TATA-box with its flanking regions affects the level of basal and activated transcription. TATA-box polymorphisms and human hereditary diseases associated with them show that TBP/TATA interaction may indirectly affect gene regulation in vivo. The object of this work is to determine changes in the TBP/TATA affinity upon polymorphisms in TATA-boxes of human gene promoters. We assess changes in TBP/TATA affinities in silico by using our formula of equilibrium TBP/TATA binding upon four consecutive steps: nonspecific binding <--> sliding <--> braking (stopping) <--> stabilization. Our prognoses agree with known examples of TATA-box polymorphisms and human hereditary diseases associated with them.
Databáze: MEDLINE