J 2016

Wild-type p53 binds to MYC promoter G-quadruplex

PETR, Marek; Robert HELMA; Alena POLÁŠKOVÁ; Aneta KREJČÍ; Zuzana DVOŘÁKOVÁ et al.

Základní údaje

Originální název

Wild-type p53 binds to MYC promoter G-quadruplex

Autoři

PETR, Marek; Robert HELMA; Alena POLÁŠKOVÁ; Aneta KREJČÍ; Zuzana DVOŘÁKOVÁ; Iva KEJNOVSKÁ; Lucie NAVRÁTILOVÁ; Matej ADÁMIK; Michaela VORLÍČKOVÁ; Marie BRÁZDOVÁ a Gabriela RUMÍŠKOVÁ

Vydání

Bioscience Reports, London, Portland Press LTD, 2016, 0144-8463

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Impakt faktor

Impact factor: 2.906

Označené pro přenos do RIV

Ne

EID Scopus

Klíčová slova anglicky

DNA-protein interaction; G-quadruplex; MYC; p53 protein

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 17. 10. 2017 16:38, Mgr. Zuzana Dvořáková, Ph.D.

Anotace

V originále

G-quadruplexes are four-stranded nucleic acid structures that are implicated in the regulation of transcription, translation and replication. Genome regions enriched in putative G-quadruplex motifs include telomeres and gene promoters. Tumour suppressor p53 plays a critical role in regulatory pathways leading to cell cycle arrest, DNA repair and apoptosis. In addition to transcriptional regulation mediated via sequence-specific DNA binding, p53 can selectively bind various non-B DNA structures. In the present study, wild-type p53 (wtp53) binding to G-quadruplex formed by MYC promoter nuclease hypersensitive element (NHE) III1 region was investigated. Wtp53 binding to MYC G-quadruplex is comparable to interaction with specific p53 consensus sequence (p53CON). Apart from the full-length wtp53, its isolated C-terminal region (aa 320-393) as well, is capable of high-affinity MYC G-quadruplex binding, suggesting its critical role in this type of interaction. Moreover, wtp53 binds to MYC promoter region containing putative G-quadruplex motif in two wtp53-expressing cell lines. The results suggest that wtp53 binding to G-quadruplexes can take part in transcriptional regulation of its target genes.