2017
The structure formed by inverted repeats in p53 response elements determines the transactivation activity of p53 protein
BRÁZDA, Václav; Jana ČECHOVÁ; M BATTISTIN; Jan COUFAL; Eva BRÁZDOVÁ JAGELSKÁ et al.Základní údaje
Originální název
The structure formed by inverted repeats in p53 response elements determines the transactivation activity of p53 protein
Autoři
BRÁZDA, Václav; Jana ČECHOVÁ; M BATTISTIN; Jan COUFAL; Eva BRÁZDOVÁ JAGELSKÁ; I RAIMONDI a A INGA
Vydání
Biochemical and biophysical research communications, SAN DIEGO, ACADEMIC PRESS INC ELSEVIER SCIENCE, 2017, 0006-291X
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 2.559
Označené pro přenos do RIV
Ne
UT WoS
Klíčová slova anglicky
Inverted repeat; p53 protein; Protein-DNA interaction; Cruciform structure
Štítky
Změněno: 11. 9. 2018 16:28, Mgr. Jana Čechová
Anotace
V originále
The TP53 gene is the most frequently mutated gene in human cancer and p53 protein plays a crucial role in gene expression and cancer protection. Its role is manifested by interactions with other proteins and DNA. p53 is a transcription factor that binds to DNA response elements (REs). Due to the palindromic nature of the consensus binding site, several p53-REs have the potential to form cruciform structures. However, the influence of cruciform formation on the activity of p53-REs has not been evaluated. Therefore, we prepared sets of p53-REs with identical theoretical binding affinity in their linear state, but different probabilities to form extra helical structures, for in vitro and in vivo analyses. Then we evaluated the presence of cruciform structures when inserted into plasmid DNA and employed a yeast-based assay to measure transactivation potential of these p53-REs cloned at a chromosomal locus in isogenic strains. We show that transactivation in vivo correlated more with relative propensity of an RE to form cruciforms than to its predicted in vitro DNA binding affinity for wild type p53. Structural features of p53-REs could therefore be an important determinant of p53 transactivation function. (C) 2016 Elsevier Inc. All rights reserved.