The alkylating agents comprise of a group of mutagens and carcinogens that modify DNA by alkylation.

Under this reading, proteins would not be expected to modify DNA, and Shapiro does not provide an example where this occurs.

On Atlantis, they built a DNA Resequencer designed to modify DNA, fulfilling the physiological component of ascension.

The mutagenic activity of the diazonium ion is due to its reaction with oxygen to produce hydrogen peroxide, which then covalently modifies DNA through a radical mechanism.

Its activity is attributed to its ability to modify DNA covalently and block replication and transcription (13-15).

The modern understanding of genetics and the techniques available for modifying DNA allows scientists to genetically modify proteins to also carry a fluorescent protein reporter.

Fusions between engineered zinc finger arrays and protein domains that cleave or otherwise modify DNA can also be used to target those activities to desired genomic loci.

Genetic ablation is a method of modifying DNA in order to disrupt the production of a specific gene.

The reaction is catalysed by methyltransferases (Mtases) and modifies DNA, RNA, proteins and small molecules, such as catechol for regulatory purposes.

Associated chromatin-remodeling proteins than modify local chromatin and DNA through mechanisms such as DNA methylation, suppressing gene expression.