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Alphabet of modified DNA keeps expanding

Move over, A, G, C and T. The alphabet of epigenetic DNA modifications keeps getting longer.

A year ago, we described research on previously unseen information in the genetic code using this metaphor:

Imagine reading an entire book, but then realizing that your glasses did not allow you to distinguish “g” from “q.” What details did you miss?

Geneticists faced a similar problem with the recent discovery of a “sixth nucleotide” in the DNA alphabet. Two modifications of cytosine, one of the four bases http://www.raybani.com/ that make up DNA, look almost the same but mean different things. But scientists lacked a way of reading DNA, letter by letter, and detecting precisely where these modifications are found in particular tissues or cell types.

Now, a team… has developed and tested a technique to accomplish this task.

Well, Emory geneticist Peng Jin and his collaborator Chuan He at the University of Chicago are at it again.

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Posted on by Quinn Eastman in Uncategorized Leave a comment