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. 2021 Feb 26;11(3):186. doi: 10.3390/life11030186

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© 2021 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Labeled cartoon representation of a Cys2His2 zinc finger motif. A C2H2 zinc finger is an essential structural component of fully methylated DNA reader proteins with methyl binding domains. The red dot represents the zinc atom; the spiral structure denotes the alpha-helix; the two antiparallel arrows are the beta-sheets. The two five-membered rings extending from the alpha helix are the imidazole rings of histidine; the two curves extending from the beta-sheets and pointing toward the red dot are the thiols of the two cysteine residues. Source: Icon was obtained and customized in BioRender (biorender.com (accessed on 23 February 2021)).