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Title: Structural impact of complete CpG methylation within target DNA on specific complex formation of the inducible transcription factor Egr-1

Journal Article · · FEBS Letters

The inducible transcription factor Egr–1 binds specifically to 9–bp target sequences containing two CpG sites that can potentially be methylated at four cytosine bases. Although it appears that complete CpG methylation would make an unfavorable steric clash in the previous crystal structures of the complexes with unmethylated or partially methylated DNA, our affinity data suggest that DNA recognition by Egr–1 is insensitive to CpG methylation. We have determined, at a 1.4–Å resolution, the crystal structure of the Egr–1 zinc–finger complex with completely methylated target DNA. In conclusion, structural comparison of the three different methylation states reveals why Egr–1 can recognize the target sequences regardless of CpG methylation.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
National Institutes of Health (NIH)
Grant/Contract Number:
R01‐GM107590; R01‐GM105931
OSTI ID:
1233751
Journal Information:
FEBS Letters, Vol. 589, Issue 15; ISSN 0014-5793
Publisher:
Federation of European Biochemical SocietiesCopyright Statement
Country of Publication:
United States
Language:
ENGLISH
Citation Metrics:
Cited by: 32 works
Citation information provided by
Web of Science

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Cited By (11)

Epigenetic alterations of CYLD promoter modulate its expression in gastric adenocarcinoma: A footprint of infections: GHADAMI et al . journal August 2018
DNA Methylation Variability in a Single Locus of the RXRα Promoter from Umbilical Vein Blood at Term Pregnancy journal January 2018
EGR1 recruits TET1 to shape the brain methylome during development and upon neuronal activity journal August 2019
Structural insights into methylated DNA recognition by the C-terminal zinc fingers of the DNA reader protein ZBTB38 journal October 2018
Influence of Quasi-Specific Sites on Kinetics of Target DNA Search by a Sequence-Specific DNA-Binding Protein journal November 2015
Changes in conformational dynamics of basic side chains upon protein–DNA association journal June 2016
Distinctive Klf4 mutants determine preference for DNA methylation status journal September 2016
Potential role of DNA methylation as a facilitator of target search processes for transcription factors through interplay with methyl-CpG-binding proteins journal May 2017
Egr-1 and RNA POL II facilitate glioma cell GDNF transcription induced by histone hyperacetylation in promoter II journal February 2017
DNA Methylation Readers and Cancer: Mechanistic and Therapeutic Applications journal June 2019
Zinc Finger Readers of Methylated DNA journal October 2018